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1.
Prev Med ; 183: 107982, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38701952

ABSTRACT

OBJECTIVE: The fight against cervical cancer requires effective screening together with optimal and on-time treatment along the care continuum. We examined the impact of cervical cancer testing and treatment guidelines on testing practices, and follow-up adherence to guidelines. METHODS: Data from Estonian electronic health records and healthcare provision claims for 50,702 women was used. The annual rates of PAP tests, HPV tests and colposcopies during two guideline periods (2nd version 2012-2014 vs 3rd version 2016-2019) were compared. To assess the adherence to guidelines, the subjects were classified as adherent, over- or undertested based on the timing of the appropriate follow-up test. RESULTS: The number of PAP tests decreased and HPV tests increased during the 3rd guideline period (p < 0.01). During the 3rd guideline period, among 21-29-year-old women, the adherence to guidelines ranged from 38.7% (44.4…50.1) for ASC-US to 73.4% (62.6…84.3) for HSIL and among 30-59-year-old from 49.0% (45.9…52.2) for ASC-US to 65.7% (58.8…72.7) for ASCH. The highest rate of undertested women was for ASC-US (21-29y: 25.7%; 30-59y: 21.9%). The rates of over-tested women remained below 12% for all cervical pathologies observed. There were 55.2% (95% CI 49.7…60.8) of 21-24-year-olds and 57.1% (95% CI 53.6…60.6) of 25-29-year-old women who received HPV test not adherent to guidelines. CONCLUSIONS: Our findings highlighted some shortcomings in guideline adherence, especially among women under 30. The insights gained from this study help to improve the quality of care and, thus, reduce cervical cancer incidence and mortality.


Subject(s)
Early Detection of Cancer , Electronic Health Records , Guideline Adherence , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Female , Uterine Cervical Neoplasms/prevention & control , Uterine Cervical Neoplasms/diagnosis , Cross-Sectional Studies , Guideline Adherence/statistics & numerical data , Adult , Middle Aged , Vaginal Smears/statistics & numerical data , Estonia , Colposcopy , Papillomavirus Infections/prevention & control , Mass Screening
2.
BMC Cancer ; 24(1): 595, 2024 May 16.
Article in English | MEDLINE | ID: mdl-38750453

ABSTRACT

BACKGROUND: Cervical cancer is the fourth most common cancer among women worldwide, both for incidence and mortality. Prevention relies on screening with a Pap test to detect precancerous lesions, which can then be treated. Access to this screening is currently both improvable and inequitable. Pregnancy may be an ideal moment for women to catch up on their overdue cervical cancer screening. In the general population, women's risk of not being screened is associated with their place of birth and other social factors; this may be true as well among pregnant women. Our objective was to study the association between women's place of birth and their failure to catch up with this screening during pregnancy. METHODS: The 2016 French National Perinatal Survey included 13,147 women who gave birth after 21 weeks of gestation. The association between their place of birth and failure to catch up on this screening (defined by the absence of a Pap test during pregnancy for women overdue for it) was adjusted for age, parity, education level, health insurance, and when they began prenatal care with logistic regression models. RESULTS: Among the women for whom screening was then recommended, 49% were not up to date at the start of pregnancy, and of these, 53% were not caught up before delivery. After adjustment for other risk factors, maternal place of birth was not associated with a higher risk of failure to catch up with this screening during pregnancy. However, factors identified as associated with this risk included a low education level and late start of prenatal care. CONCLUSION: About half of women overdue for cervical cancer screening did not catch up with it during their pregnancy. Professionals should pay special attention to women with lower education levels and late initiation of prenatal care, who constitute a group at high risk of not catching up on this screening during pregnancy.


Subject(s)
Early Detection of Cancer , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Pregnancy , Adult , France/epidemiology , Vaginal Smears/statistics & numerical data , Papanicolaou Test/statistics & numerical data , Young Adult , Surveys and Questionnaires , Prenatal Care , Mass Screening/methods
3.
Pan Afr Med J ; 47: 57, 2024.
Article in English | MEDLINE | ID: mdl-38646136

ABSTRACT

Introduction: cervical cancer is a health concern worldwide. The South Kivu Province in the Eastern DR Congo is facing many cases of this disease but poorly screened and reported. The objective of this was to determine the prevalence of cell abnormalities at cervical cytology in a tertiary teaching hospital in Bukavu and their association with common risk factors of cervical cancer. Methods: a cross-sectional study was conducted on 142 women attending the Provincial Referral Hospital of Bukavu (HPGRB) from February to December 2021. Quantitative variables were described by their median following their asymmetric distributions and the qualitative variables in absolute and relative frequencies. Then the Chi-square test was used for the comparison of proportion. Results: forty-five percent of the participants had between three and five children. Twenty-two (15.5%) of the 142 patients reported to have two or more sexual partners and 17.5% reported the use of hormonal contraception. The prevalence of cell abnormalities at cervical cytology was 17% of which Low- Grade Squamous Intraepithelial Lesion (LSIL) was the most representative (12.9%). There was no statistically significant association between the common cervical risk factors and the occurrence of cell abnormalities. Conclusion: cervical pre-cancerous lesions are frequent in South Kivu province. The Pap smear test remains an early and affordable screening method and constitutes a secondary prevention strategy in women of 18 years and older in a low-income country such as DR Congo where vaccination against HPV is still hypothetic.


Subject(s)
Early Detection of Cancer , Mass Screening , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Female , Cross-Sectional Studies , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/epidemiology , Democratic Republic of the Congo/epidemiology , Adult , Papanicolaou Test/statistics & numerical data , Middle Aged , Young Adult , Vaginal Smears/statistics & numerical data , Prevalence , Mass Screening/methods , Risk Factors , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Dysplasia/pathology , Precancerous Conditions/diagnosis , Precancerous Conditions/epidemiology , Precancerous Conditions/pathology , Squamous Intraepithelial Lesions of the Cervix/pathology , Squamous Intraepithelial Lesions of the Cervix/diagnosis , Squamous Intraepithelial Lesions of the Cervix/epidemiology , Adolescent , Aged
4.
BMC Womens Health ; 24(1): 266, 2024 Apr 27.
Article in English | MEDLINE | ID: mdl-38678278

ABSTRACT

BACKGROUND: Uganda has approximately 1.2 million people aged 15-64 years living with human immunodeficiency virus (HIV). Previous studies have shown a higher prevalence of premalignant cervical lesions among HIV-positive women than among HIV-negative women. Additionally, HIV-infected women are more likely to have human papilloma virus (HPV) infection progress to cancer than women not infected with HIV. We determined the prevalence of premalignant cervical lesions and their association with HIV infection among women attending a cervical cancer screening clinic at Mbarara Regional Referral Hospital (MRRH) in southwestern Uganda. METHODS: We conducted a comparative cross-sectional study of 210 women aged 22-65 years living with HIV and 210 women not living with HIV who were systematically enrolled from March 2022 to May 2022. Participants were subjected to a structured interviewer-administered questionnaire to obtain their demographic and clinical data. Additionally, Papanicolaou smears were obtained for microscopy to observe premalignant cervical lesions. Multivariate logistic regression was performed to determine the association between HIV status and premalignant cervical lesions. RESULTS: The overall prevalence of premalignant cervical lesions in the study population was 17% (n = 72; 95% C.I: 14.1-21.4), with 23% (n = 47; 95% C.I: 17.8-29.5) in women living with HIV and 12% (n = 25; 95% C.I: 8.2-17.1) in women not living with HIV (p < 0.003). The most common premalignant cervical lesions identified were low-grade squamous intraepithelial lesions (LSIL) in both women living with HIV (74.5%; n = 35) and women not living with HIV (80%; n = 20). HIV infection was significantly associated with premalignant lesions (aOR: 2.37, 95% CI: 1.27-4.42; p = 0.007). CONCLUSION: Premalignant cervical lesions, particularly LSILs, were more common in HIV-positive women than in HIV-negative women, highlighting the need to strengthen the integration of cervical cancer prevention strategies into HIV care programs.


Subject(s)
Early Detection of Cancer , HIV Infections , Precancerous Conditions , Uterine Cervical Neoplasms , Humans , Female , Adult , Cross-Sectional Studies , Uganda/epidemiology , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/diagnosis , Middle Aged , Young Adult , Early Detection of Cancer/methods , Early Detection of Cancer/statistics & numerical data , HIV Infections/complications , HIV Infections/epidemiology , Prevalence , Precancerous Conditions/epidemiology , Aged , Papanicolaou Test/statistics & numerical data , Tertiary Care Centers/statistics & numerical data , HIV Seropositivity/epidemiology , HIV Seropositivity/complications , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Dysplasia/diagnosis , Papillomavirus Infections/epidemiology , Papillomavirus Infections/complications , Vaginal Smears/statistics & numerical data
6.
BMC Public Health ; 24(1): 1125, 2024 Apr 23.
Article in English | MEDLINE | ID: mdl-38654197

ABSTRACT

BACKGROUND: Réunion Island is a French overseas territory located in the southern Indian Ocean, with a challenging socioeconomic and multicultural context. Compared to mainland France, Réunion has an overincidence and overmortality of cervical cancer. In order to investigate these two issues, it is important to evaluate the barriers and potential levers to Pap smear screening among female inhabitants of the island. We aimed to identify the specific socio-demographic factors, cultural factors, and living conditions associated with Pap smear screening in Réunion, with a view to increasing uptake. METHODS: We conducted a Knowledge Attitude Behavior and Practices (KABP) survey on cervical cancer screening practices among women aged between 25 and 65 years old living in Réunion Island, selected using random digit dialing sampling. Data were collected using Computer Assistant Telephone Interviews. Weighted chi-squared tests and Student's t-tests were used to compare women who had up-to-date Pap smear screening with women who did not. Weighted logistic models were used to identify the factors associated with not having up-to-date screening. RESULTS: A total of 1000 women were included in the study. Of these, 88.1% had a Pap smear test during the previous three years. Factors independently associated with not being up to date were as follows: aged over 55 (AOR 2.3 [1.2-4.3]), no children (AOR 2.5 [1.4-4.3]), having free universal health coverage (AOR 1.7 [1.1-2.7]), an income per unit consumption lower than 1500€ per month (AOR 2.0 [1.1-3.7]), low health literacy (AOR 2.7 [1.7-4.1]), not consulting a general practitioner in the prior 12 months (AOR 3.6 [2.0-6.5]), and a BMI > 30 (AOR 2.6 [1.5-4.4]). CONCLUSIONS: This is the first large-scale survey focusing on recommended Pap smear screening uptake in Réunion Island. Although self-reported screening incidence was higher than in mainland France, national screening policies must take into account the island's diverse social and cultural characteristics (e.g., an ageing population, low health literacy), while implementing actions to fight against poverty and increase general access to healthcare.


Subject(s)
Health Knowledge, Attitudes, Practice , Papanicolaou Test , Socioeconomic Factors , Uterine Cervical Neoplasms , Humans , Female , Papanicolaou Test/statistics & numerical data , Middle Aged , Adult , Reunion , Aged , Uterine Cervical Neoplasms/diagnosis , Early Detection of Cancer/statistics & numerical data , France , Vaginal Smears/statistics & numerical data , Cultural Characteristics
7.
J Immigr Minor Health ; 26(3): 596-603, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38308798

ABSTRACT

Haitian immigrant women living in the U.S. have a higher rate of cervical cancer mortality than any other ethnic group, primarily due to lower rates of screening test utilization. Therefore, it is important to understand the issues affecting their pap smear screening behaviors. We conducted a narrative review of articles from PubMed, SCOPUS, Embase, CINAHL/Nursing, and Psych Info. Inclusion criteria: U.S. Haitian immigrant, screening, cervical cancer, health beliefs/perceptions. Exclusion criteria: HPV-vaccine. Primary barriers: (1) lack of knowledge of cervical cancer, HPV, and pap smears; (2) lack of culturally appropriate dissemination of information; and (3) difficulty obtaining the test. Primary facilitators: (1) provider recommendations, (2) Haitian media to disseminate health information, and (3) having health insurance. This review highlights the points for intervention by health professionals and policy makers to address this group's low pap smear utilization.


Subject(s)
Early Detection of Cancer , Emigrants and Immigrants , Health Knowledge, Attitudes, Practice , Papanicolaou Test , Uterine Cervical Neoplasms , Humans , Female , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/ethnology , Haiti/ethnology , Early Detection of Cancer/statistics & numerical data , United States , Vaginal Smears/statistics & numerical data , Patient Acceptance of Health Care/ethnology , Adult , Health Services Accessibility
8.
J Cancer Educ ; 39(3): 264-270, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38376746

ABSTRACT

Low and middle-income countries, such as Guatemala, shoulder a disproportionate share of cervical cancer, a preventable disease in high income countries. Tangible obstacles, such as lack of access to health care, cultural differences, and insufficient infrastructure, and facilitators, such as being Ladino, married, and educated, have been identified in the literature related to cervical cancer prevention. The aim of this survey was to explore barriers and facilitators to cervical cancer prevention, comparing rural Indigenous and urban Ladino populations. We surveyed 139 women in two health clinics. Participants answered questions about demographic information, cervical cancer knowledge, and health care behaviors. We analyzed survey data with four bivariate models. Our results suggest vulnerable populations, such as rural Indigenous women who are single, illiterate, and lack education, face higher cervical cancer risk. Partnerships should be formed with health promotors and lay midwives to educate and encourage vulnerable populations to prevent cervical cancer.


Subject(s)
Early Detection of Cancer , Health Knowledge, Attitudes, Practice , Papanicolaou Test , Uterine Cervical Neoplasms , Vulnerable Populations , Humans , Female , Uterine Cervical Neoplasms/prevention & control , Uterine Cervical Neoplasms/diagnosis , Guatemala , Adult , Middle Aged , Vulnerable Populations/statistics & numerical data , Papanicolaou Test/statistics & numerical data , Early Detection of Cancer/statistics & numerical data , Rural Population/statistics & numerical data , Surveys and Questionnaires , Vaginal Smears/statistics & numerical data , Health Services Accessibility , Young Adult , Central American People
9.
J Gynecol Oncol ; 35(3): e26, 2024 May.
Article in English | MEDLINE | ID: mdl-38130135

ABSTRACT

OBJECTIVE: This study aims to investigate the implementation rate and influencing factors of confirmatory tests for women with abnormal cervical cytology results in the Korean nationwide cervical cancer screening program. METHODS: The National Health Insurance Service (NHIS) database was utilized to identify all Korean women who have participated in the Korean nationwide cervical cancer screening program from January 2011 and December 2021 using the NHIS database. Multiple logistic regression analysis was performed to estimate the multivariate odds ratio and evaluate the patients' characteristics. RESULTS: The rate of abnormal Papanicolaou (Pap) smears showed an initial increase from 2011 to 2015 and subsequently reached a plateau after 2016. When examining specific subcategories, cases of atypical squamous cells of undetermined significance (ASC-US) increased from 28,546 cases (1.1%) in 2011 to 62,850 cases (1.7%) in 2021. In contrast, cases of HSIL and SCC declined from 3,535 cases (0.14%) to 2,763 cases (0.07%) and from 383 cases (0.01%) to 179 cases (0.005%), respectively. Furthermore, the implementation rate of confirmatory tests for women with abnormal cytology increased from 8,865 cases (21.0%) in 2011 to 39,045 cases (51.2%) in 2021. Regarding the specific subcategory of ASC-US, the number of confirmatory tests exhibited a substantial increase from 4,101 cases (14.4%) in 2011 to 30,482 cases (48.5%) in 2021. For SCC, there was no significant change, with 216 cases (56.4%) in 2011 and 102 cases (57.0%) in 2021. The implementation rate of confirmatory tests was found to be significantly associated with results of abnormal Pap smear, age, and residence. Notably, economic status did not emerge as a significant factor affecting the likelihood of undergoing confirmatory tests. CONCLUSIONS: The severity of abnormal Pap smear results is a reliable indicator of the probability of undergoing a confirmatory test. Additional endeavors are required to improve the implementation rate among women who have received abnormal Pap smear results.


Subject(s)
Early Detection of Cancer , National Health Programs , Papanicolaou Test , Uterine Cervical Neoplasms , Vaginal Smears , Humans , Female , Papanicolaou Test/statistics & numerical data , Adult , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Middle Aged , Republic of Korea/epidemiology , Early Detection of Cancer/methods , Early Detection of Cancer/statistics & numerical data , Vaginal Smears/statistics & numerical data , Aged , Atypical Squamous Cells of the Cervix/pathology , Databases, Factual , Young Adult , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Dysplasia/pathology
10.
JAMA ; 330(6): 547-558, 2023 08 08.
Article in English | MEDLINE | ID: mdl-37552298

ABSTRACT

Importance: Each year in the US, approximately 100 000 people are treated for cervical precancer, 14 000 people are diagnosed with cervical cancer, and 4000 die of cervical cancer. Observations: Essentially all cervical cancers worldwide are caused by persistent infections with one of 13 carcinogenic human papillomavirus (HPV) genotypes: 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, and 68. HPV vaccination at ages 9 through 12 years will likely prevent more than 90% of cervical precancers and cancers. In people with a cervix aged 21 through 65 years, cervical cancer is prevented by screening for and treating cervical precancer, defined as high-grade squamous intraepithelial lesions of the cervix. High-grade lesions can progress to cervical cancer if not treated. Cervicovaginal HPV testing is 90% sensitive for detecting precancer. In the general population, the risk of precancer is less than 0.15% over 5 years following a negative HPV test result. Among people with a positive HPV test result, a combination of HPV genotyping and cervical cytology (Papanicolaou testing) can identify the risk of precancer. For people with current precancer risks of less than 4%, repeat HPV testing is recommended in 1, 3, or 5 years depending on 5-year precancer risk. For people with current precancer risks of 4% through 24%, such as those with low-grade cytology test results (atypical squamous cells of undetermined significance [ASC-US] or low-grade squamous intraepithelial lesion [LSIL]) and a positive HPV test of unknown duration, colposcopy is recommended. For patients with precancer risks of less than 25% (eg, cervical intraepithelial neoplasia grade 1 [CIN1] or histologic LSIL), treatment-related adverse effects, including possible association with preterm labor, can be reduced by repeating colposcopy to monitor for precancer and avoiding excisional treatment. For patients with current precancer risks of 25% through 59% (eg, high-grade cytology results of ASC cannot exclude high-grade lesion [ASC-H] or high-grade squamous intraepithelial lesion [HSIL] with positive HPV test results), management consists of colposcopy with biopsy or excisional treatment. For those with current precancer risks of 60% or more, such as patients with HPV-16-positive HSIL, proceeding directly to excisional treatment is preferred, but performing a colposcopy first to confirm the need for excisional treatment is acceptable. Clinical decision support tools can facilitate correct management. Conclusions and Relevance: Approximately 100 000 people are treated for cervical precancer each year in the US to prevent cervical cancer. People with a cervix should be screened with HPV testing, and if HPV-positive, genotyping and cytology testing should be performed to assess the risk of cervical precancer and determine the need for colposcopy or treatment. HPV vaccination in adolescence will likely prevent more than 90% of cervical precancers and cancers.


Subject(s)
Early Detection of Cancer , Papillomavirus Infections , Uterine Cervical Dysplasia , Uterine Cervical Neoplasms , Female , Humans , Early Detection of Cancer/methods , Early Detection of Cancer/statistics & numerical data , Papillomaviridae/genetics , Papillomavirus Infections/complications , Papillomavirus Infections/diagnosis , Papillomavirus Infections/epidemiology , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Dysplasia/virology , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/epidemiology , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Vaginal Smears/statistics & numerical data
11.
Cancer Med ; 11(2): 520-529, 2022 01.
Article in English | MEDLINE | ID: mdl-34841722

ABSTRACT

BACKGROUND: Although many cervical cytology diagnostic support systems have been developed, it is challenging to classify overlapping cell clusters with a variety of patterns in the same way that humans do. In this study, we developed a fast and accurate system for the detection and classification of atypical cell clusters by using a two-step algorithm based on two different deep learning algorithms. METHODS: We created 919 cell images from liquid-based cervical cytological samples collected at Sapporo Medical University and annotated them based on the Bethesda system as a dataset for machine learning. Most of the images captured overlapping and crowded cells, and images were oversampled by digital processing. The detection system consists of two steps: (1) detection of atypical cells using You Only Look Once v4 (YOLOv4) and (2) classification of the detected cells using ResNeSt. A label smoothing algorithm was used for the dataset in the second classification step. This method annotates multiple correct classes from a single cell image with a smooth probability distribution. RESULTS: The first step, cell detection by YOLOv4, was able to detect all atypical cells above ASC-US without any observed false negatives. The detected cell images were then analyzed in the second step, cell classification by the ResNeSt algorithm, which exhibited average accuracy and F-measure values of 90.5% and 70.5%, respectively. The oversampling of the training image and label smoothing algorithm contributed to the improvement of the system's accuracy. CONCLUSION: This system combines two deep learning algorithms to enable accurate detection and classification of cell clusters based on the Bethesda system, which has been difficult to achieve in the past. We will conduct further research and development of this system as a platform for augmented reality microscopes for cytological diagnosis.


Subject(s)
Image Processing, Computer-Assisted/instrumentation , Uterine Cervical Neoplasms/diagnostic imaging , Vaginal Smears/statistics & numerical data , Algorithms , Deep Learning , Early Detection of Cancer/statistics & numerical data , Female , Humans , Uterine Cervical Neoplasms/classification , Uterine Cervical Neoplasms/diagnosis
12.
J Cancer Res Ther ; 17(6): 1462-1467, 2021.
Article in English | MEDLINE | ID: mdl-34916378

ABSTRACT

BACKGROUND: Human papilloma virus (HPV) is one of the most common causes of sexually transmitted viral diseases worldwide. High-risk HPV types such as HPV16 and 18 are known to cause cervical dysplasia and carcinoma. In human immunodeficiency virus (HIV)-positive individual, chance of HPV coinfection and risk of cervical dysplasia/carcinoma have been found to be significantly more than in HIV-negative individuals. AIM: In this institution-based, cross-sectional, observational study, we aim to find out the relationship of HPV infection of the uterine cervix with cervical dysplasia and neoplasia in HIV-infected/AIDS patients. MATERIALS AND METHODS: Conventional Pap smears were taken from HIV-infected individuals admitted in the department of gynecology and obstetrics and reported by the Bethesda system. A second sample was sent to the virology unit of ICMR for detection and typing of HPV. Control samples were taken from HIV-negative individuals. RESULTS: Fifty HIV-positive patients were included in this study. On cervical Pap smear examination, 32 cases were cytologically benign and 18 cases showed atypical cytomorphology. Twenty-four cases were HPV positive, among which 16 were cytologically atypical and 8 were benign. HPV 16 was the most common subtype (50%) followed by HPV 18 (37.5%) and others (12.5%) in HIV-positive patients. Chance of cervical dysplasia increased with age independent of HIV infection and with progressive lower CD4 count. Koilocytosis was a significant predictor of HPV infection. Majority of patients were asymptomatic. Peak incidence of HPV infection occurred in reproductive age group (20-40 years). The association between HIV and HPV coinfection (P = 0.002) and between HPV infection and cytology atypia (P < 0.0001) was statistically significant. CONCLUSION: Present study highlights the necessity of routine cervical Pap smear screening in HIV infected reproductive age-group women. Early detection enables dysplasia to revert or be effectively managed.


Subject(s)
Coinfection/epidemiology , HIV Infections/complications , Papillomavirus Infections/epidemiology , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Neoplasms/epidemiology , Adult , Cervix Uteri/pathology , Cervix Uteri/virology , Coinfection/immunology , Coinfection/pathology , Coinfection/virology , Cross-Sectional Studies , Female , HIV Infections/immunology , HIV Infections/pathology , HIV Infections/virology , Human papillomavirus 16/immunology , Human papillomavirus 16/isolation & purification , Human papillomavirus 18/immunology , Human papillomavirus 18/isolation & purification , Humans , Incidence , Middle Aged , Papanicolaou Test/statistics & numerical data , Papillomavirus Infections/immunology , Papillomavirus Infections/pathology , Papillomavirus Infections/virology , Uterine Cervical Neoplasms/immunology , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Vaginal Smears/statistics & numerical data , Young Adult , Uterine Cervical Dysplasia/immunology , Uterine Cervical Dysplasia/pathology , Uterine Cervical Dysplasia/virology
13.
Eur Rev Med Pharmacol Sci ; 25(19): 6109-6122, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34661271

ABSTRACT

OBJECTIVE: Cervical cancer is largely preventable. Although routine Pap smear screening has reduced cervical cancer-related mortality by 70-80% in all countries and by approximately 90% in developing countries, the gynecologist is still confronted with women in advanced stages of the disease. The eradication of cervical cancer depends on identifying the disease early and removing barriers to its timely detection. Given the significant burden of cervical cancer in Asian countries, we investigated factors related to its screening in Asia. MATERIALS AND METHODS: A comprehensive search was carried out in databases such as Medline, Web of Science and Scopus for articles published until September 2020. The following keywords were used: vaginal smear, Pap smear, cervical cancer screening, barriers, obstacles, challenge, early detection, the name of each Asian country, and a combination of these words. RESULTS: Seventy-five articles were included in the study. The investigation revealed various factors related to cervical cancer screening in Asian women, including sociodemographic factors, awareness, attitudes and beliefs, perceived risk, psychological factors, self-efficacy, previous experiences, time, household, culture, fatalism, social support, access, cost, safety, insurance and health system-related factors. CONCLUSIONS: Several barriers hinder the efficacy of a screening program. Its success requires the use of educational interventions, professional and inter-professional cooperation, allocation of sufficient resources, and policymakers focusing on the elimination of barriers.


Subject(s)
Early Detection of Cancer/statistics & numerical data , Mass Screening/statistics & numerical data , Uterine Cervical Neoplasms/diagnosis , Asian People/statistics & numerical data , Female , Health Knowledge, Attitudes, Practice , Humans , Papanicolaou Test/statistics & numerical data , Uterine Cervical Neoplasms/ethnology , Vaginal Smears/statistics & numerical data
14.
Comput Math Methods Med ; 2021: 3890988, 2021.
Article in English | MEDLINE | ID: mdl-34646333

ABSTRACT

The task of segmenting cytoplasm in cytology images is one of the most challenging tasks in cervix cytological analysis due to the presence of fuzzy and highly overlapping cells. Deep learning-based diagnostic technology has proven to be effective in segmenting complex medical images. We present a two-stage framework based on Mask RCNN to automatically segment overlapping cells. In stage one, candidate cytoplasm bounding boxes are proposed. In stage two, pixel-to-pixel alignment is used to refine the boundary and category classification is also presented. The performance of the proposed method is evaluated on publicly available datasets from ISBI 2014 and 2015. The experimental results demonstrate that our method outperforms other state-of-the-art approaches with DSC 0.92 and FPRp 0.0008 at the DSC threshold of 0.8. Those results indicate that our Mask RCNN-based segmentation method could be effective in cytological analysis.


Subject(s)
Cervix Uteri/cytology , Cytodiagnosis/methods , Deep Learning , Neural Networks, Computer , Uterine Cervical Neoplasms/diagnostic imaging , Computational Biology , Cytodiagnosis/statistics & numerical data , Cytoplasm/ultrastructure , Databases, Factual , Female , Humans , Image Interpretation, Computer-Assisted/methods , Image Interpretation, Computer-Assisted/statistics & numerical data , Uterine Cervical Neoplasms/pathology , Vaginal Smears/statistics & numerical data
15.
J Infect Dev Ctries ; 15(8): 1190-1196, 2021 08 31.
Article in English | MEDLINE | ID: mdl-34516428

ABSTRACT

INTRODUCTION: Human papillomavirus (HPV) is the most common sexually transmitted infection agent worldwide and, with high-risk (HR) HPV genotypes, is the main factor for development of cervical cancer. This study aimed to assess the prevalence of HPV and distribution of HR-HPV genotypes in cervical swab samples and compare them with demographic and clinical data. METHODOLOGY: Cervical swab samples of 2,285 women between the age of 17 and 76 were assessed between January 2018 and October 2020 in order to obtain the data of Turkey. Fifteen different HR-HPV genotypes were determined using multiplex real-time polymerase chain reaction test. RESULTS: HPV was positive in 36.3% (829/2,285) of DNA samples. Prevalence of multiple HR-HPV infection was 40.7%. Of the women, 30.9% (256/829) were infected with HPV16, 14.6% (121/829) with HPV39, and 14.2% (118/829) with HPV51. The most frequently detected genotypes with HPV16 were HPV31, HPV39 and HPV52, respectively. In women with cervical dysplasia, HPV16, 31, and 39 were the most common, and in women with genital warts, HPV16, 59 and 66 were most common, respectively. The highest HR-HPV prevalence was detected in the 17-34 age group (44.1%) (p < 0.001). CONCLUSIONS: The prevalence of HR-HPV was 36.3% in this study. High prevalence (44.1%) especially in young women was consistent with findings in literature. The most common HR-HPV genotypes were HPV16, 39 and 51, respectively. Determining the prevalence and genotypes of HR-HPV playing role in the etiology of cervical cancer will be guiding for measures on prevention of cervical cancer and research on preventive vaccines.


Subject(s)
Condylomata Acuminata/epidemiology , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Neoplasms/epidemiology , Adolescent , Adult , Condylomata Acuminata/virology , Cross-Sectional Studies , Female , Humans , Middle Aged , Papillomaviridae/isolation & purification , Prevalence , Retrospective Studies , Turkey/epidemiology , Uterine Cervical Dysplasia/virology , Uterine Cervical Neoplasms/virology , Vaginal Smears/statistics & numerical data , Young Adult
16.
Gynecol Oncol ; 163(2): 378-384, 2021 11.
Article in English | MEDLINE | ID: mdl-34507826

ABSTRACT

OBJECTIVE: To examine trends in the use of cervical cancer screening tests during 2013-2019 among commercially insured women. METHODS: The study population included women of all ages with continuous enrollment each year in the IBM MarketScan commercial or Medicare supplemental databases and without known history of cervical cancer or precancer (range = 6.9-9.8 million women per year). Annual cervical cancer screening test use was examined by three modalities: cytology alone, cytology plus HPV testing (cotesting), and HPV testing alone. Trends were assessed using 2-sided Poisson regression. RESULTS: Use of cytology alone decreased from 34.2% in 2013 to 26.4% in 2019 among women aged 21-29 years (P < .0001). Among women aged 30-64 years, use of cytology alone decreased from 18.9% in 2013 to 8.6% in 2019 (P < .0001), whereas cotesting use increased from 14.9% in 2013 to 19.3% in 2019 (P < .0001). Annual test use for HPV testing alone was below 0.5% in all age groups throughout the study period. Annually, 8.7%-13.6% of women aged 18-20 years received cervical cancer screening. There were persistent differences in screening test use by metropolitan residence and census regions despite similar temporal trends. CONCLUSIONS: Temporal changes in the use of cervical cancer screening tests among commercially insured women track changes in clinical guidelines. Screening test use among individuals younger than 21 years shows that many young women are inappropriately screened for cervical cancer.


Subject(s)
Early Detection of Cancer/trends , Medicare/trends , Papillomavirus Infections/diagnosis , Patient Acceptance of Health Care/statistics & numerical data , Uterine Cervical Neoplasms/prevention & control , Administrative Claims, Healthcare/statistics & numerical data , Adult , Age Factors , Aged , Alphapapillomavirus/isolation & purification , Cervix Uteri/pathology , Cervix Uteri/virology , Databases, Factual/statistics & numerical data , Early Detection of Cancer/standards , Early Detection of Cancer/statistics & numerical data , Female , Humans , Medicare/statistics & numerical data , Middle Aged , Papanicolaou Test/standards , Papanicolaou Test/statistics & numerical data , Papanicolaou Test/trends , Papillomavirus Infections/pathology , Papillomavirus Infections/virology , Practice Guidelines as Topic , United States , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Vaginal Smears/standards , Vaginal Smears/statistics & numerical data , Vaginal Smears/trends , Young Adult
17.
Int J Cancer ; 149(12): 2083-2090, 2021 12 15.
Article in English | MEDLINE | ID: mdl-34418082

ABSTRACT

The globally recommended public health policy for cervical screening is primary human papillomavirus (HPV) screening with cytology triaging of positives. To ensure optimal quality of laboratory services we have conducted regular audits of cervical smears taken before cervical cancer or cancer in situ (CIN3+) within an HPV-based screening program. The central cervical screening laboratory of Stockholm, Sweden, identified cases of CIN3+ who had had a previous cervical screening test up to 3 years before and randomly selected 300 cervical liquid-based cytology (LBC) samples for auditing. HPV testing with Roche Cobas was performed either at screening or with biobanked samples. HPV negative samples and subsequent biopsies were retrieved and tested with modified general primer HPV PCR and, if still HPV-negative, the LBCs and biopsies were whole genome sequenced. The Cobas 4800 detected HPV in 1020/1052 (97.0%) LBC samples taken before CIN3+. Further analyses found HPV in 28 samples, with nine of those containing HPV types not targeted by the Cobas 4800 test. There were 4 specimens (4/1052, 0.4%) where no HPV was detected. By comparison, the proportion of CIN3+ cases that were positive in a previous cytology were 91.6%. We find that the routine HPV screening test had a sensitivity in the real-life screening program of 97.0%. Regular laboratory audits of cervical samples taken before CIN3+ can be readily performed within a real-life screening program and provide assurance that the laboratory of the real-life program has the expected performance.


Subject(s)
Alphapapillomavirus/isolation & purification , Clinical Laboratory Services/statistics & numerical data , Mass Screening/statistics & numerical data , Papillomavirus Infections/diagnosis , Uterine Cervical Neoplasms/prevention & control , Adult , Aged , Cervix Uteri/pathology , Cervix Uteri/virology , Clinical Audit/statistics & numerical data , Clinical Laboratory Services/organization & administration , False Negative Reactions , Female , Humans , Mass Screening/methods , Mass Screening/standards , Middle Aged , Papillomavirus Infections/pathology , Papillomavirus Infections/virology , Sweden , Triage/methods , Triage/standards , Triage/statistics & numerical data , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Vaginal Smears/standards , Vaginal Smears/statistics & numerical data , Young Adult
18.
Reprod Health ; 18(1): 138, 2021 Jun 30.
Article in English | MEDLINE | ID: mdl-34193195

ABSTRACT

PURPOSES: This study aimed to understand the influence of health beliefs, demographic factors, and health characteristics on the intention to undergo Pap smear testing among women in rural areas of Indonesia. METHODS: A descriptive cross-sectional study was conducted and 687 married women participated in the study. A convenience sampling was applied to recruit the participants from community health centres in a rural region in Indonesia. Self-reported data using the Health Beliefs Model Scale for Cervical Cancer and Pap Smear Test was collected to assess the health beliefs. Independent t-tests, simple logistic regressions, and a hierarchical logistic regression with 3 steps were run. Statistical significance for analysis was set at p < 0.05. RESULTS: The mean age of the participants was 42 years (SD = 8.4). Among the participants, 81% of the women had never undergone a Pap smear test, and 61% (n = 422) of the women reported a high intention of receiving a Pap smear test. Income and education Health beliefs regarding Pap smear testing were different between women who had low and high intentions to undergo Pap smear testing. Health beliefs, such as perceived benefits, severity, barriers to Pap smear testing, and health motivation for a Pap smear test were associated with the intention to undergo Pap smear testing among rural Indonesian women. Overall, the hierarchical multiple regression with 3 steps containing demographic, health characteristics, and health belief variables accounted for 31% variance of the intention to undergo Pap smear test among the Indonesian rural women. CONCLUSIONS: Low screening rates of cervical cancer and high intentions to do the screening exist among rural Indonesian women. Health beliefs significantly affect the rural women's intention of Pap smear testing in Indonesia.


Cervical cancer is a leading cancer among women and a significant cause of mortality for females around the world, including Indonesia. Globally, the screening rate for cervical cancer among women in rural areas remains low. In Indonesia, the incidence and the mortality from cervical cancer remain high compared to other female cancers. The Indonesian government has offered a free Pap smear screening to women since 2014, but the screening rate is still low, around 28%.A total of 687 married women were included in the study. Approximately 80% of Indonesian women living in rural areas have never undergone a Pap smear test, and 60% of women reported a high intention of receiving a Pap smear test. Education, income, previous experience of Pap smear testing, a friend with a history of cervical cancer, perceived severity, perceived benefits, perceived barriers, and health motivations were significantly associated with the intention of Pap smear testing. Low screening rates of cervical cancer and high intentions toward the cervical cancer screening exist among rural Indonesian women. Health beliefs significantly affect the women's intention of Pap smear testing.


Subject(s)
Health Knowledge, Attitudes, Practice , Intention , Mass Screening/methods , Papanicolaou Test/statistics & numerical data , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/prevention & control , Adult , Cross-Sectional Studies , Early Detection of Cancer , Female , Health Belief Model , Humans , Indonesia , Mass Screening/psychology , Mass Screening/statistics & numerical data , Middle Aged , Rural Population , Surveys and Questionnaires , Vaginal Smears/psychology , Vaginal Smears/statistics & numerical data
19.
Am J Obstet Gynecol ; 225(6): 649.e1-649.e9, 2021 12.
Article in English | MEDLINE | ID: mdl-34256029

ABSTRACT

BACKGROUND: Current consensus recommendations are to not initiate cervical cancer screening for immunocompetent adolescent females before 21 years of age. This is in part because of the very low rate of 0.8 per 100,000 new cervical cancer cases diagnosed among women aged between 20 to 24 years. Timely human papillomavirus vaccination further decreases the incidence of cervical cancer to 4 cases per 100,000 persons by the age of 28 years. Screening before 21 years of age has demonstrated no clear benefit in cancer risk reduction or outcomes. In addition, unindicated screening among adolescents can lead to patient harm and increasing costs to the healthcare system. OBJECTIVE: It is important to assess the rates of overutilization of cervical cancer screening and to identify areas where improvements have occurred and where further opportunities exist. This study aimed to assess the trends over time and the practice and provider factors associated with unindicated cervical cancer screening tests in adolescent females within the largest healthcare system in the state. STUDY DESIGN: Cross-sectional data from patients aged 13 to 20 years who underwent cervical cancer screening between January 1, 2012, and December 31, 2018, across a large multihospital health system were reviewed. All cervical cancer screening results were included. The incidence rate of unindicated screening was analyzed over 6-month intervals using the Poisson regression analysis. RESULTS: The study included data from 118 providers and 794 women. Among the 900 screening results, most (90%) were unindicated: 87% with unindicated cytology testing alone and 14% with unindicated human papillomavirus testing. Screening tests were collected from patients aged 13 to 20 years, many of whom had multiple unindicated cytology tests, with 25 patients having ≥3 tests before the age of 21 years. Most results of cytology testing were negative for intraepithelial lesion or malignancy (77%). Moreover, 52 invasive diagnostic or therapeutic procedures (49 colposcopies and 3 conizations) were performed, of which 45 (87%) followed an unindicated screening test. Between 2012 and 2018, the incidence rate of unindicated cytology decreased by 33% (12.6 to 8.5 unindicated cytology per 1000 encounters). The incidence rate of unindicated screening was lower in the academic setting than in the community setting (incidence rate ratio, 0.43; P<.01). Even with decreases in the overall rates of unindicated screening throughout the study period, there were still 58 unindicated screening tests performed in the final year of this study. CONCLUSION: Despite substantial reductions in unindicated screening for women aged <21 years, there remained areas for improvement. Our data reflected practices of guideline nonadherence up to 7 years after the 2012 guideline. Now, with a new series of changes to the guidelines, which may be even more challenging for patients and providers, it is more important than ever to utilize evidence-based strategies to improve guideline dissemination and adherence.


Subject(s)
Papillomavirus Infections/epidemiology , Practice Patterns, Physicians'/statistics & numerical data , Uterine Cervical Dysplasia/epidemiology , Uterine Cervical Neoplasms/epidemiology , Vaginal Smears/statistics & numerical data , Adolescent , Adolescent Health Services , Cross-Sectional Studies , Early Detection of Cancer , Electronic Health Records , Female , Humans , Medical Overuse , Papillomavirus Infections/diagnosis , Papillomavirus Infections/prevention & control , United States , Uterine Cervical Neoplasms/diagnosis , Uterine Cervical Neoplasms/prevention & control , Young Adult , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Dysplasia/prevention & control
20.
Gynecol Oncol ; 162(2): 315-321, 2021 08.
Article in English | MEDLINE | ID: mdl-34074539

ABSTRACT

OBJECTIVE: It has been proposed that cervical cancer screening should be continued in women with previous abnormal results or irregular attendance. We examined the coverage and factors that might influence cervical testing beyond the age range of the organized cervical screening programme in Finland. The national programme invites women in every five years least until the age of 60. After the stopping age, only opportunistic service is available. METHODS: Data on cervical testing were collected from the Mass Screening Registry and providers of opportunistic Pap/HPV-testing and were linked with information on socio-economic variables. The study included 373,353 women who had at least one invitation to the national screening programme between ages 50-60 years, and who were aged 65-74 years in the follow-up period 2006-2016. Multivariable binomial regression models were conducted to determine associations. RESULTS: Altogether 33% of the study population had been tested at least once at ages 65-74 years. Previous regular screening attendance (adjRR 1.70; 95% CI 1.67-1.73) and earlier abnormal results (adjRR 2.08; 95% CI 2.04-2.12) were most clearly related to higher testing adherence at older age. Other factors related to higher testing adherence were urban area of residence, domestic mother tongue, high education level, and high socio-economic status. CONCLUSION: Testing at older age was frequent with normal results, whereas only a small proportion of women with earlier abnormal results or irregular attendance were tested. The upper age limit of the national programme should be raised to 65 years, and the invitations thereafter should be targeted to selected high-risk groups.


Subject(s)
Early Detection of Cancer/statistics & numerical data , Papillomavirus Infections/diagnosis , Patient Compliance/statistics & numerical data , Uterine Cervical Dysplasia/diagnosis , Uterine Cervical Neoplasms/prevention & control , Adult , Aftercare , Age Factors , Aged , Cervix Uteri/pathology , Cervix Uteri/virology , Cohort Studies , Early Detection of Cancer/economics , Early Detection of Cancer/standards , Female , Finland , Healthcare Disparities/statistics & numerical data , Humans , Insurance Coverage/economics , Insurance Coverage/standards , Insurance Coverage/statistics & numerical data , Middle Aged , Papanicolaou Test/economics , Papanicolaou Test/standards , Papanicolaou Test/statistics & numerical data , Papillomavirus Infections/economics , Papillomavirus Infections/pathology , Papillomavirus Infections/virology , Registries/statistics & numerical data , Socioeconomic Factors , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/virology , Vaginal Smears/economics , Vaginal Smears/statistics & numerical data , Uterine Cervical Dysplasia/economics , Uterine Cervical Dysplasia/pathology , Uterine Cervical Dysplasia/virology
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