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1.
Cancer ; 130(14): 2462-2471, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38529676

RESUMO

BACKGROUND: Cervical cancer associated with human papillomavirus has the highest cancer incidence and mortality for women in Botswana because of a high HIV prevalence and limited screening. This study investigates the significance of HIV on the overall survival (OS) of patients with locally advanced cervical cancer by various treatment categories (curative chemoradiation, definitive radiation [RT] alone, or palliative RT alone). METHODS: This study included patients diagnosed with cervical cancer between 2013 and 2020, prospectively enrolled in the Botswana Prospective Cancer Cohort. OS based on HIV status and completion of planned treatment regimen was estimated by the Kaplan-Meier method. Comparisons of 2-year OS by HIV status was performed by the log-rank test, univariate and multivariable Cox analyses adjusting for cancer stage, RT dose, number of chemotherapy cycles, and baseline hemoglobin levels. RESULTS: Of 1131 patients diagnosed with stage IB-IVB cervical cancer, 69.8% were women living with HIV (n = 789). For patients receiving curative chemoradiation, HIV status was not significantly associated with OS in unadjusted (p = .987) and adjusted (p = .578) analyses. For RT only treatment and definitive (high-dose) RT alone, HIV status was significantly associated with OS in unadjusted analysis (HR = 1.77, p = .002; HR = 1.95, p = .014), but not in adjusted analysis (p = .227, p = .73). For patients receiving palliative (low-dose) RT, HIV status was not associated with OS in unadjusted (p = .835) or adjusted analysis (p = .359). CONCLUSIONS: In Botswana, a resource-limited setting, HIV status had no significant effect on 2-year OS in patients with cervical cancer with well-managed HIV receiving chemoradiation, RT alone, or palliative RT. This demonstrates that patients living with HIV receiving antiretroviral treatment can receive clinically appropriate treatment with no evidence that HIV may lead to poorer outcomes.


Assuntos
Quimiorradioterapia , Infecções por HIV , Cuidados Paliativos , Neoplasias do Colo do Útero , Humanos , Feminino , Neoplasias do Colo do Útero/terapia , Neoplasias do Colo do Útero/virologia , Neoplasias do Colo do Útero/mortalidade , Neoplasias do Colo do Útero/patologia , Botsuana/epidemiologia , Pessoa de Meia-Idade , Adulto , Cuidados Paliativos/métodos , Infecções por HIV/complicações , Estudos Prospectivos , Idoso , Estadiamento de Neoplasias
2.
Lancet ; 401(10389): 1733-1744, 2023 05 20.
Artigo em Inglês | MEDLINE | ID: mdl-37167988

RESUMO

A package of care for all pregnant women within eight scheduled antenatal care contacts is recommended by WHO. Some interventions for reducing and managing the outcomes for small vulnerable newborns (SVNs) exist within the WHO package and need to be more fully implemented, but additional effective measures are needed. We summarise evidence-based antenatal and intrapartum interventions (up to and including clamping the umbilical cord) to prevent vulnerable births or improve outcomes, informed by systematic reviews. We estimate, using the Lives Saved Tool, that eight proven preventive interventions (multiple micronutrient supplementation, balanced protein and energy supplementation, low-dose aspirin, progesterone provided vaginally, education for smoking cessation, malaria prevention, treatment of asymptomatic bacteriuria, and treatment of syphilis), if fully implemented in 81 low-income and middle-income countries, could prevent 5·202 million SVN births (sensitivity bounds 2·398-7·903) and 0·566 million stillbirths (0·208-0·754) per year. These interventions, along with two that can reduce the complications of preterm (<37 weeks' gestation) births (antenatal corticosteroids and delayed cord clamping), could avert 0·476 million neonatal deaths (0·181-0·676) per year. If further research substantiates the preventive effect of three additional interventions (supplementation with omega-3 fatty acids, calcium, and zinc) on SVN births, about 8·369 million SVN births (2·398-13·857) and 0·652 million neonatal deaths (0·181-0·917) could be avoided per year. Scaling up the eight proven interventions and two intrapartum interventions would cost about US$1·1 billion in 2030 and the potential interventions would cost an additional $3·0 billion. Implementation of antenatal care recommendations is urgent and should include all interventions that have proven effects on SVN babies, within the context of access to family planning services and addressing social determinants of health. Attaining high effective coverage with these interventions will be necessary to achieve global targets for the reduction of low birthweight births and neonatal mortality, and long-term benefits on growth and human capital.


Assuntos
Morte Perinatal , Lactente , Gravidez , Recém-Nascido , Feminino , Humanos , Incidência , Cuidado Pré-Natal , Natimorto , Parto
3.
BJOG ; 131(9): 1259-1269, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38351649

RESUMO

OBJECTIVE: To evaluate the impact of screening and treating asymptomatic pregnant women for Chlamydia (C.) trachomatis and Neisseria (N.) gonorrhoeae infections on the frequency of preterm birth or low birthweight infants in Botswana. DESIGN: Non-randomised, cluster-controlled trial. SETTING: Four antenatal care clinics in Gaborone, Botswana. POPULATION: Pregnant women aged ≥15 years, attending a first antenatal care visit, ≤27 weeks of gestation and without urogenital symptoms were eligible. METHODS: Participants in the intervention clinics received screening (GeneXpert®, Cepheid) during pregnancy and at the postnatal visit. Participants in the standard-of-care clinics received screening at the postnatal visit only. We used multivariable logistic regression and post-estimation predictive margins analysis. Post-hoc analysis was conducted among sub-samples stratified by parity. MAIN OUTCOME MEASURES: Preterm birth (<37 weeks of gestation) and low birthweight (<2500 g). RESULTS: After controlling for parity, hypertension, antenatal care visits and clinic site, the predicted prevalence of preterm birth or low birthweight was lower in the intervention arm (11%) compared with the standard-of-care arm (16%) (adjusted odds ratio [aOR] 0.59; 95% confidence interval [CI] 0.28-1.24). In post-hoc analysis, the intervention was more effective than the standard-of-care (aOR 0.20; 95% CI 0.07-0.64) among nulliparous participants. CONCLUSION: A C. trachomatis and N. gonorrhoeae infection screening and treatment intervention among asymptomatic pregnant women may have reduced preterm birth or low birthweight outcomes, but results were not statistically significant. Post-hoc analysis found that the intervention reduced adverse outcomes among nulliparous participants.


Assuntos
Infecções por Chlamydia , Chlamydia trachomatis , Gonorreia , Recém-Nascido de Baixo Peso , Neisseria gonorrhoeae , Complicações Infecciosas na Gravidez , Nascimento Prematuro , Humanos , Feminino , Gravidez , Nascimento Prematuro/prevenção & controle , Nascimento Prematuro/epidemiologia , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/epidemiologia , Infecções por Chlamydia/prevenção & controle , Gonorreia/epidemiologia , Gonorreia/diagnóstico , Gonorreia/prevenção & controle , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/prevenção & controle , Complicações Infecciosas na Gravidez/diagnóstico , Adulto , Chlamydia trachomatis/isolamento & purificação , Botsuana/epidemiologia , Neisseria gonorrhoeae/isolamento & purificação , Recém-Nascido , Adulto Jovem , Cuidado Pré-Natal/métodos , Programas de Rastreamento/métodos , Antibacterianos/uso terapêutico , Adolescente
4.
Curr Opin Infect Dis ; 35(1): 49-54, 2022 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-34873079

RESUMO

PURPOSE OF REVIEW: Although cervical cancer is preventable, it is the leading cancer among women in southern Africa. The association of high-risk human papillomavirus (HR-HPV) with almost all invasive cervical cancers has led to the development of effective primary and secondary prevention measures. This review focuses on updated and new evidence of the epidemiology of HPV and HPV-based secondary prevention in southern Africa. RECENT FINDINGS: HR-HPV prevalence in southern Africa differs between regions, and varies most by HIV prevalence and age. HR-HPV prevalence among women living with HIV (WLWH) is reported between 29 and 59.7%, and between 16.2 and 25.2% among women without HIV. HPV16 is the most common HR-HPV type present in invasive cervical cancers in the region; and vaccination may potentially prevent approximately 80% of these cancers. Concerning preliminary data suggests faster development of new cervical precancer within a short follow-up period. SUMMARY: We need tools that identify the small number of women with precancer from the many with transient HR-HPV infection in southern Africa. The high-volume of test-positive women leads to challenges in managing triage in a HR-HPV-based screening program. Longitudinal data from the entire region is urgently needed to guide effective implementation of HPV-based screening programs.


Assuntos
Alphapapillomavirus , Infecções por HIV , Infecções por Papillomavirus , Neoplasias do Colo do Útero , Feminino , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Programas de Rastreamento , Papillomaviridae , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Prevalência , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/prevenção & controle
5.
Sex Transm Dis ; 49(1): 59-66, 2022 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-34310524

RESUMO

BACKGROUND: Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are common sexually transmitted infections (STIs) associated with adverse outcomes, yet most countries do not test and conduct syndromic management, which lacks sensitivity and specificity. Innovations allow for expanded STI testing; however, cost is a barrier. METHODS: Using inputs from a pilot program in Botswana, we developed a model among a hypothetical population of 50,000 pregnant women to compare 1-year costs and outcomes associated with 3 antenatal STI testing strategies: (1) point-of-care, (2) centralized laboratory, and (3) a mixed approach (point of care at high-volume sites, and hubs elsewhere), and syndromic management. RESULTS: Syndromic management had the lowest delivery cost but was associated with the most infections at delivery, uninfected women treated, CT/NG-related low-birth-weight infants, disability-adjusted life years, and low birth weight hospitalization costs. Point-of-care CT/NG testing would treat and cure the most infections but had the highest delivery cost. Among the testing scenarios, the mixed scenario had the most favorable cost per woman treated and cured ($534/cure). Compared with syndromic management, the mixed approach resulted in a mean incremental cost-effectiveness ratio of $953 per disability-adjusted life years averted, which is cost-effective under World Health Organization's one-time per-capita gross domestic product willingness-to-pay threshold. CONCLUSIONS: As countries consider new technologies to strengthen health services, there is an opportunity to determine how to best deploy resources. Compared with point-of-care, centralized laboratory, and syndromic management, the mixed approach offered the lowest cost per infection averted and is cost-effective if policy makers' willingness to pay is informed by the World Health Organization's gross domestic product/capita threshold.


Assuntos
Infecções por Chlamydia , Gonorreia , Complicações Infecciosas na Gravidez , Infecções Sexualmente Transmissíveis , Botsuana/epidemiologia , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/epidemiologia , Chlamydia trachomatis , Feminino , Gonorreia/diagnóstico , Gonorreia/epidemiologia , Humanos , Neisseria gonorrhoeae , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/prevenção & controle , Prevalência , Infecções Sexualmente Transmissíveis/diagnóstico , Infecções Sexualmente Transmissíveis/epidemiologia
6.
BMC Infect Dis ; 22(1): 229, 2022 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-35255814

RESUMO

BACKGROUND: Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are extremely common sexually transmitted infections (STIs) that are associated with adverse birth and neonatal outcomes, and the risk of vertical transmission of CT and NG during delivery is high. The majority of CT and NG infections are asymptomatic and missed by the standard of care in most countries (treatment based on symptoms). Thus, it is likely that missed maternal CT and NG infections contribute to preventable adverse health outcomes among women and children globally. This study aims to assess the effectiveness of CT and NG testing for asymptomatic pregnant women to prevent adverse neonatal outcomes, understand the inflammatory response linking CT and NG infections to adverse neonatal outcomes, and conduct an economic analysis of the CT and NG testing intervention. METHODS: The Maduo ("results" in Setswana) is a prospective, cluster-controlled trial in Gaborone, Botswana to compare a near point-of-care CT and NG testing and treatment intervention implemented in "study clinics" with standard antenatal care (World Health Organization-endorsed "syndromic management" strategy based on signs and symptoms without laboratory confirmation) implemented in "standard of care clinics" among asymptomatic pregnant women. The primary outcome is vertical transmission of CT/NG infection. Secondary outcomes include preterm birth (delivery < 37 completed weeks of gestation) and/or low birth weight (< 2500 g). The trial will also evaluate immunological and inflammatory markers of adverse neonatal outcomes, as well as the costs and cost-effectiveness of the intervention compared with standard care. DISCUSSION: The Maduo study will improve our understanding of the effectiveness and cost-effectiveness of CT and NG testing among asymptomatic pregnant women. It will also increase knowledge about the CT/NG-related immune responses that might drive adverse neonatal outcomes. Further, results from this study could encourage expansion of STI testing during antenatal care in low resource settings and improve maternal and neonatal health globally. TRIAL REGISTRATION: This trial is registered with ClinicalTrials.gov (Identifier NCT04955717, First posted: July 9, 2021)).


Assuntos
Infecções por Chlamydia , Gonorreia , Complicações Infecciosas na Gravidez , Nascimento Prematuro , Infecções Sexualmente Transmissíveis , Trichomonas vaginalis , Botsuana/epidemiologia , Criança , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/tratamento farmacológico , Infecções por Chlamydia/epidemiologia , Chlamydia trachomatis , Ensaios Clínicos Controlados como Assunto , Feminino , Gonorreia/diagnóstico , Gonorreia/tratamento farmacológico , Gonorreia/epidemiologia , Humanos , Recém-Nascido , Neisseria gonorrhoeae , Parto , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/prevenção & controle , Gestantes , Estudos Prospectivos , Infecções Sexualmente Transmissíveis/diagnóstico
7.
BMC Infect Dis ; 22(1): 176, 2022 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-35193517

RESUMO

INTRODUCTION: In 2015, Botswana introduced quadrivalent human papillomavirus (HPV) vaccine for girls aged 9-13 years. To establish a baseline HPV prevalence for future HPV vaccine impact monitoring, we evaluated HPV prevalences among the youngest unvaccinated women in Botswana and compared HPV prevalences among women living with HIV (WLHIV) and without HIV. METHODS: Women aged 18-22 years were recruited from the University of Botswana and HIV clinics in Gaborone from October 2019-January 2021. Demographic and behavioral characteristics were self-reported during structured interviews; HIV clinical characteristics were abstracted from medical charts. Self-collected vaginal swabs were tested for 28 HPV types using Seegene Anyplex II HPV28. We compared prevalence of any HPV, high risk (HR)-HPV, and quadrivalent HPV vaccine types (HPV6/11/16/18) among WLHIV and women without HIV and evaluated risk factors for prevalence of HR-HPV. RESULTS: A total of 306 WLHIV and 500 women without HIV were recruited. Compared to women without HIV, WLHIV were more likely to be sexually experienced (86.6% versus 74.4%) and have ≥ 3 lifetime sex partners (55.3% versus 27.8%). All HPV type prevalences were significantly higher among WLHIV compared to women without HIV, including prevalence of any HPV (82.7% versus 63.0%), HR-HPV (72.9% versus 53.8%), and quadrivalent vaccine HPV types (34.3% versus 21.0%). Among WLHIV, there were no differences between those perinatally and non-perinatally infected for HPV prevalences, number of HPV types detected, CD4 count, or viral load. CONCLUSIONS: Over one-third of WLHIV and nearly a quarter of those without HIV had vaccine-type HPV detected. This study supports need for the national HPV vaccination program in Botswana and provides important baseline data for future evaluation of impact of the program.


Assuntos
Infecções por HIV , Infecções por Papillomavirus , Vacinas contra Papillomavirus , Adolescente , Adulto , Botsuana/epidemiologia , Criança , Feminino , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Papillomaviridae/genética , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Prevalência , Adulto Jovem
8.
BMC Infect Dis ; 22(1): 95, 2022 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-35086475

RESUMO

BACKGROUND: The variation of human papillomavirus (HPV) genotypes shapes the risks of cervical cancer and these variations are not well defined in Africa. Nucleotide changes within the L1 gene, nucleotide variability, and phylogeny were explored in relation to HIV in samples from Botswana and Kenya. METHODS: A total of 98 HPV-positive cervical samples were sequenced to identify different HPV variants. Phylogenetic inferences were used to determine HPV genotypes and investigate the clustering of sequences between women living with HIV (WLWHIV) and -women not living with HIV (WNLWHIV). RESULTS: Out of 98 generated sequences, 83.7% (82/98) participants had high-risk (HR) HPV genotypes while 16.3% (16/98) had low-risk (LR) HPV genotypes. Among participants with HR-HPV genotypes, 47.6% (39/82) were coinfected with HIV. The prevalence of HR-HPV genotypes was statistically higher in the Botswana population compared to Kenya (p-value < 0.001). Multiple amino acid mutations were identified in both countries. Genetic diversity differed considerably among WLWHIV and WNLWHIV. The mean pairwise distances between HPV-16 between HIV and HIV/HPV as well as for HPV-18 were statistically significant. Six (6) new deleterious mutations were identified in the HPV genotypes based on the sequencing of the L1 region, HPV-16 (L441P, S343P), HPV-18 (S424P), HPV-45 (Q366H, Y365F), and HPV-84 (F458L). The majority of the patients with these mutations were co-infected with HIV. CONCLUSIONS: Genomic diversity and different genomic variants of HPV sequences were demonstrated. Candidate novel mutations within the L1 gene were identified in both countries which can be further investigated using functional assays.


Assuntos
Alphapapillomavirus , Infecções por HIV , Infecções por Papillomavirus , Neoplasias do Colo do Útero , Botsuana/epidemiologia , Feminino , Variação Genética , Genótipo , HIV , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Quênia/epidemiologia , Papillomaviridae/genética , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Filogenia , Neoplasias do Colo do Útero/epidemiologia
9.
BMC Womens Health ; 22(1): 100, 2022 04 02.
Artigo em Inglês | MEDLINE | ID: mdl-35366863

RESUMO

BACKGROUND: Women living with human immunodeficiency virus (HIV) tend to develop cervical cancer at a younger age than women without HIV. The World Health Organization's (WHO) 2021 guidelines for screening and treatment of cervical pre-cancer lesions for cervical cancer prevention include a conditional recommendation for initiating screening at age 25 for women living with HIV (WLWH). This recommendation is based on low-certainty evidence, and WHO calls for additional data. We describe the association of age and HIV status with visual inspection with acetic acid (VIA) positivity and cervical intraepithelial neoplasia grade two or higher (CIN2+) in Botswana. METHODS: This was a retrospective cross-sectional study of 5714 participants aged 25 to 49 years who underwent VIA screening in a clinic mainly serving WLWH. VIA-positive women received cryotherapy if eligible or were referred for colposcopy and excisional treatment. Known cervical cancer risk factors, screening outcome, and histological results were extracted from the program database. We compared the proportions and association of VIA positivity and CIN2+ by age and HIV status. RESULTS: The median age was 35 years [IQR 31-39], and 18% of the women were aged 25-29. Ninety percent were WLWH; median CD4 count was 250 cells/µL [IQR 150-428], and 34.2% were on anti-retroviral treatment (ART). VIA-positivity was associated with younger age (OR 1.48, CI 1.28, 1.72 for 25-29 years vs. 30-49 years), and HIV-positivity (OR 1.85, CI 1.51, 2.28). CIN2+ was only associated with HIV-positivity (OR 6.12, CI 3.39, 11.10), and proportions of CIN2+ were similar for both age groups in WLWH (69.1% vs. 68.3%). CONCLUSIONS: Younger WLWH in Botswana had a significant burden of CIN2+. This finding further supports lowering the screening age for WLWH from 30 to 25.


Assuntos
Infecções por HIV , Neoplasias do Colo do Útero , Adulto , Botsuana/epidemiologia , Estudos Transversais , Detecção Precoce de Câncer/métodos , Feminino , Infecções por HIV/complicações , Infecções por HIV/diagnóstico , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos
10.
BMC Womens Health ; 22(1): 195, 2022 05 28.
Artigo em Inglês | MEDLINE | ID: mdl-35643491

RESUMO

BACKGROUND: Delays in screening and timely diagnosis contribute significantly to global disparities in cervical cancer mortality in Botswana and other low- and middle-income countries, particularly those with high rates of HIV. Little is known about the modifiable factors shaping these delays from the perspectives of women themselves and how these perspectives may differ between those living with and without HIV. METHODS: From March-May 2019, we conducted a concurrent, mixed methods study of women receiving treatment for cervical cancer at a multidisciplinary oncology clinic in Botswana. Enrolled participants completed a one-time, concurrent semi-structured interview and structured questionnaire assessing patient characteristics, screening and HIV-related beliefs and knowledge, and barriers and facilitators to screening and follow-up care. Qualitative data were analyzed using directed content analysis guided by the Model of Pathways to Treatment and triangulated with quantitative questionnaire data to identify areas of convergence and divergence. Fisher's exact tests were used to explore associations between questionnaire data (e.g., screening knowledge) and HIV status. RESULTS: Forty-two women enrolled in the study, 64% of whom were living with HIV and 26% were diagnosed with stage III cervical cancer. Median age was 45 years (IQR 54-67) in those living with HIV and 64 years (IQR 42-53) in those living without. Overall screening rates before symptomatic disease were low (24%). Median time from most proximal screen to diagnosis was 52 median days (IQR 15-176), with no significant differences by HIV status. General screening knowledge was higher among those living with HIV versus those without (100% vs 73%; p < 0.05), but knowledge about HPV and other risk factors was low in both groups. Similar to questionnaire results, qualitative results indicate limited awareness of the need to be screened prior to symptoms as a central barrier to timely screening. Some participants also noted that delays in the receipt of screening results and fear also contributed to treatment delays. However, many participants also described myriad sources of social and tangible support that helped them to overcome some of these challenges. CONCLUSION: Interventions focused on increasing routine screening and supporting timely awareness and access to care are needed to reduce global disparities in cervical cancer.


Assuntos
Infecções por HIV , Neoplasias do Colo do Útero , Assistência ao Convalescente , Botsuana , Detecção Precoce de Câncer/métodos , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/terapia , Humanos , Pessoa de Meia-Idade , Neoplasias do Colo do Útero/prevenção & controle , Neoplasias do Colo do Útero/terapia
11.
Sex Transm Dis ; 48(11): 887-894, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34174039

RESUMO

BACKGROUND: Sexually transmitted infection (STI) testing is not routinely offered in many countries, and management is symptoms based. Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are associated with an increased risk of HIV transmission. We assess the feasibility and acceptability of integrating CT/NG testing into routine HIV care in Botswana, as well as the prevalence and correlates of CT/NG infections. METHOD: A prospective study was conducted at an HIV clinic in Gaborone between February and October 2019. Eligibility criteria included the following: ≥18 years, HIV infected, and not treated for CT/NG in the past month. Participants self-collected samples and responded to a questionnaire on sociodemographic and health characteristics. Samples were processed using the GeneXpert. Patients were offered same-day results in person or by telephone. Those who tested positive were treated. RESULTS: Of 806 patients informed of the study, 526 (65%) expressed interest and 451 (60%) were enrolled. The median age was 48 years, and 66% were women. All participants provided self-collected samples, were successfully tested, and received results. Almost all reported sample self-collection was easy. The prevalence of CT/NG was 5%. Most participants (73%) with a positive result were asymptomatic. Among infected, 20 (91%) received same-day results and all were treated. Younger age, female sex, and pain during sex were associated with having CT/NG. CONCLUSIONS: Integrating STI testing into routine HIV care was feasible, self-collecting specimens was highly acceptable, but uptake of testing was low. Where blanket screening to the entire clinic population may not be feasible because of resource limitation, one strategy could be to prioritize sexually active patients, younger patients, and women.


Assuntos
Infecções por Chlamydia , Gonorreia , Infecções por HIV , Infecções Sexualmente Transmissíveis , Botsuana/epidemiologia , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/tratamento farmacológico , Infecções por Chlamydia/epidemiologia , Chlamydia trachomatis , Feminino , Gonorreia/diagnóstico , Gonorreia/tratamento farmacológico , Gonorreia/epidemiologia , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Pessoa de Meia-Idade , Neisseria gonorrhoeae , Prevalência , Estudos Prospectivos , Infecções Sexualmente Transmissíveis/diagnóstico , Infecções Sexualmente Transmissíveis/tratamento farmacológico , Infecções Sexualmente Transmissíveis/epidemiologia
12.
Int J Gynecol Cancer ; 31(10): 1328-1334, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34493586

RESUMO

OBJECTIVES: Vulvar cancer is a rare gynecological malignancy. However, the incidence of human papillomavirus (HPV)-associated vulvar disease is increasing, particularly in low- and middle-income countries. HIV infection is associated with an increased risk of HPV-associated vulvar cancer. We evaluated treatment patterns and survival outcomes in a cohort of vulvar cancer patients in Botswana. The primary objective of this study was to determine overall survival and the impact of treatment modality, stage, and HIV status on overall survival. METHODS: Women with vulvar cancer who presented to oncology care in Botswana from January 2015 through August 2019 were prospectively enrolled in this observational cohort study. Demographics, clinical characteristics, treatment, and survival data were collected. Factors associated with survival including age, HIV status, stage, and treatment were evaluated. RESULTS: Our cohort included 120 women with vulvar cancer. Median age was 42 (IQR 38-47) years. The majority of patients were living with HIV (89%, n=107) that was well-controlled on antiretroviral treatment. Among women with HIV, 54.2% (n=58) were early stage (FIGO stage I/II). In those without HIV, 46.2% (n=6) were early stage (stage I/II). Of the 95 (79%) patients who received treatment, 20.8% (n=25) received surgery, 67.5% (n=81) received radiation therapy, and 24.2% (n=29) received chemotherapy, either alone or in combination. Median follow-up time of all patients was 24.7 (IQR 14.2-39.1) months and 2- year overall survival for all patients was 74%. Multivariate analysis demonstrated improved survival for those who received surgery (HR 0.26; 95% CI 0.08 to 0.86) and poor survival was associated with advanced stage (HR 2.56; 95% CI 1.30 to 5.02). Survival was not associated with HIV status. CONCLUSIONS: The majority of women with vulvar cancer in Botswana are young and living with HIV infection. Just under half of patients present with advanced stage, which was associated with worse survival. Improved survival was seen for those who received surgery.


Assuntos
Infecções por HIV/epidemiologia , Neoplasias Vulvares/mortalidade , Adulto , Antivirais/uso terapêutico , Botsuana/epidemiologia , Estudos de Casos e Controles , Coinfecção , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Infecções por Papillomavirus/complicações , Estudos Prospectivos , Neoplasias Vulvares/terapia , Neoplasias Vulvares/virologia
13.
Int J Gynecol Cancer ; 31(9): 1220-1227, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34312220

RESUMO

OBJECTIVE: Cervical cancer remains the most common cancer among women in sub-Saharan Africa and is also a leading cause of cancer related deaths among these women. The benefit of chemoradiation in comparison with radiation alone for patients with stage IIIB disease has not been evaluated prospectively in women living with human immunodeficiency virus (HIV). We assessed the survival of chemoradiation versus radiation alone among stage IIIB cervical cancer patients based on HIV status. METHODS: Between February 2013 and June 2018, patients with International Federation of Gynecology and Obstetrics (FIGO) 2009 stage IIIB cervical cancer with or without HIV and treated with chemoradiation or radiation alone, were prospectively enrolled in an observational cohort study. Overall survival was evaluated using the Kaplan-Meier method. Cox proportional hazards modeling was used to analyze associations with survival. RESULTS: Among 187 patients, 63% (n=118) of women had co-infection with HIV, and 48% (n=69) received chemoradiation. Regardless of HIV status, patients who received chemoradiation had improved 2 year overall survival compared with those receiving radiation alone (59% vs 41%, p<0.01), even among women living with HIV (60% vs 38%, p=0.02). On multivariable Cox regression analysis, including all patients regardless of HIV status, 2 year overall survival was associated with receipt of chemoradiation (hazard ratio (HR) 0.63, p=0.04) and total radiation dose ≥80 Gy (HR 0.57, p=0.02). Among patients who received an adequate radiation dose of ≥80 Gy, adjusted overall survival rates were similar between chemoradiation versus radiation alone groups (HR 1.07; p=0.90). However, patients who received an inadequate radiation dose of <80 Gy, adjusted survival was significantly higher in chemoradiation versus radiation alone group (HR 0.45, p=0.01). CONCLUSIONS: Addition of chemotherapy to standard radiation improved overall survival, regardless of HIV status, and is even more essential in women who cannot receive full doses of radiation.


Assuntos
Quimiorradioterapia/métodos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/radioterapia , Neoplasias do Colo do Útero/tratamento farmacológico , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Análise de Sobrevida , Neoplasias do Colo do Útero/mortalidade
14.
BMC Womens Health ; 21(1): 267, 2021 07 06.
Artigo em Inglês | MEDLINE | ID: mdl-34229672

RESUMO

BACKGROUND: Cervical cancer is the leading cause of female cancer mortality in Botswana with the majority of cervical cancer patients presenting with late-stage disease. The identification of factors associated with late-stage disease could reduce the cervical cancer burden. This study aims to identify potential patient level clinical and sociodemographic factors associated with a late-stage diagnosis of cervical cancer in Botswana in order to help inform future interventions at the community and individual levels to decrease cervical cancer morbidity and mortality. RESULTS: There were 984 women diagnosed with cervical cancer from January 2015 to March 2020 at two tertiary hospitals in Gaborone, Botswana. Four hundred forty women (44.7%) presented with late-stage cervical cancer, and 674 women (69.7%) were living with HIV. The mean age at diagnosis was 50.5 years. The association between late-stage (III/IV) cervical cancer at diagnosis and patient clinical and sociodemographic factors was evaluated using multivariable logistic regression with multiple imputation. Women who reported undergoing cervical cancer screening had lower odds of late-stage disease at diagnosis (OR: 0.63, 95% CI 0.47-0.84) compared to those who did not report screening. Women who had never been married had increased odds of late-stage disease at diagnosis (OR: 1.35, 95% CI 1.02-1.86) compared to women who had been married. Women with abnormal vaginal bleeding had higher odds of late-stage disease at diagnosis (OR: 2.32, 95% CI 1.70-3.16) compared to those without abnormal vaginal bleeding. HIV was not associated with a diagnosis of late-stage cervical cancer. Rural women who consulted a traditional healer had increased odds of late-stage disease at diagnosis compared to rural women who had never consulted a traditional healer (OR: 1.61, 95% CI 1.02-2.55). CONCLUSION: Increasing education and awareness among women, regardless of their HIV status, and among providers, including traditional healers, about the benefits of cervical cancer screening and about the importance of seeking prompt medical care for abnormal vaginal bleeding, while also developing support systems for unmarried women, may help reduce cervical cancer morbidity and mortality in Botswana.


Assuntos
Neoplasias do Colo do Útero , Botsuana/epidemiologia , Diagnóstico Tardio , Detecção Precoce de Câncer , Feminino , Humanos , Programas de Rastreamento , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/epidemiologia
15.
BMC Public Health ; 21(1): 2231, 2021 12 08.
Artigo em Inglês | MEDLINE | ID: mdl-34879845

RESUMO

BACKGROUND: A significant proportion (20-59%) of people living with HIV in sub-Saharan Africa desire childbearing, are of reproductive age, and are in sero-different relationships (~50%). Thus it is plausible that some portion of new HIV transmissions are due to attempts to become pregnant. Safer conception (SC) methods that effectively reduce the risk of HIV transmission exist and can be made available in resource-constrained settings. Few studies in the region, and none in Botswana, have quantitatively examined the correlates of information, motivation, and behavioral skills for SC uptake. METHODS: We surveyed 356 women living with HIV from 6/2018 to 12/2018 at six public-sector health clinics in Gaborone, Botswana. Participants were 18-40 years old, not pregnant, and desired future children or were unsure about their childbearing plans. We examined correlates of SC information, motivation, and behavioral skills using nested linear regression models, adjusting for socio-demographic, interpersonal, and structural variables. RESULTS: Knowledge of SC methods varied widely. While some SC methods were well known (medical male circumcision by 83%, antiretroviral therapy for viral suppression by 64%), most other methods were known by less than 40% of participants. Our final models reveal that stigma as well as relationship and partner factors affect SC information, motivation, and behavioral skills. Both internalized childbearing stigma (ß=-0.50, 95%CI:-0.17, -0.02) and perceived community childbearing stigma were negatively associated with SC information (ß=-0.09, 95%CI:-0.80, -0.21). Anticipated (ß=-0.06, 95%CI:-0.12, -0.003) and internalized stigma (ß=-0.27, 95%CI:-0.44; -0.10) were associated with decreased SC motivation, while perceived community childbearing stigma was associated with increased SC motivation (ß=0.07, 95%CI:0.02, 0.11). Finally, internalized childbearing stigma was associated with decreased SC behavioral skills (ß=-0.80, 95%CI: -1.12, -0.47) while SC information (ß=0.24, 95%CI:0.12, 0.36), motivation (ß=0.36, 95%CI:0.15, 0.58), and perceived partner willingness to use SC (ß=0.47, 95%CI:0.36, 0.57) were positively associated with behavioral skills CONCLUSIONS: Low SC method-specific information levels are concerning since almost half (47%) of the study participants reported they were in sero-different relationships and desired more children. Findings highlight the importance of addressing HIV stigma and partner dynamics in interventions to improve SC information, motivation, and behavioral skills.


Assuntos
Infecções por HIV , Motivação , Adolescente , Adulto , Botsuana , Criança , Feminino , Fertilização , Humanos , Masculino , Gravidez , Estigma Social , Adulto Jovem
16.
Sex Transm Dis ; 47(12): 779-789, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32773611

RESUMO

BACKGROUND: Sexually transmitted infections (STI), such as chlamydial, gonorrheal, and trichomonal infections, are prevalent in pregnant women in many countries and are widely reported to be associated with increased risk of poor maternal and neonatal outcomes. Syndromic STI management is frequently used in pregnant women in low- and middle-income countries, yet its low specificity and sensitivity lead to both overtreatment and undertreatment. Etiologic screening for chlamydial, gonorrheal, and/or trichomonal infection in all pregnant women combined with targeted treatment might be an effective intervention. However, the evidence base is insufficient to support the development of global recommendations. We aimed to describe key considerations and knowledge gaps regarding chlamydial, gonorrheal, and trichomonal screening during pregnancy to inform future research needed for developing guidelines for low- and middle-income countries. METHODS: We conducted a narrative review based on PubMed and clinical trials registry searches through January 20, 2020, guidelines review, and expert opinion. We summarized our findings using the frameworks adopted by the World Health Organization for guideline development. RESULTS: Adverse maternal-child health outcomes of potential interest are wide-ranging and variably defined. No completed randomized controlled trials on etiologic screening and targeted treatment were identified. Evidence from observational studies was limited, and trials of presumptive STI treatment have shown mixed results. Subgroups that might benefit from specific recommendations were identified. Evidence on harms was limited. Cost-effectiveness was influenced by STI prevalence and availability of testing infrastructure and high-accuracy/low-cost tests. Preliminary data suggested high patient acceptability. DISCUSSION: Preliminary data on harms, acceptability, and feasibility and the availability of emerging test technologies suggest that etiologic STI screening deserves further evaluation as a potential tool to improve maternal and neonatal health outcomes worldwide.


Assuntos
Infecções por Chlamydia/prevenção & controle , Gonorreia/epidemiologia , Transmissão Vertical de Doenças Infecciosas , Gestantes , Nascimento Prematuro/microbiologia , Infecções Sexualmente Transmissíveis/prevenção & controle , Vaginite por Trichomonas/epidemiologia , Adolescente , Adulto , Chlamydia trachomatis , Feminino , Gonorreia/prevenção & controle , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Recém-Nascido , Neisseria gonorrhoeae , Gravidez , Nascimento Prematuro/epidemiologia , Infecções Sexualmente Transmissíveis/diagnóstico , Infecções Sexualmente Transmissíveis/tratamento farmacológico , Infecções Sexualmente Transmissíveis/epidemiologia , Vaginite por Trichomonas/prevenção & controle , Trichomonas vaginalis
17.
Int J Gynecol Cancer ; 30(8): 1151-1156, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32675252

RESUMO

INTRODUCTION: We characterized the cervical 16S rDNA microbiome of patients in Botswana with high-grade cervical dysplasia and locally advanced cervical cancer. METHODS: This prospective study included 31 patients: 21 with dysplasia and 10 with cancer. The Shannon diversity index was used to evaluate alpha (intra-sample) diversity, while the UniFrac (weighted and unweighted) and Bray-Curtis distances were employed to evaluate beta (inter-sample) diversity. The relative abundance of microbial taxa was compared among samples using linear discriminant analysis effect size. RESULTS: Alpha diversity was significantly higher in patients with cervical cancer than in patients with cervical dysplasia (P<0.05). Beta diversity also differed significantly (weighted UniFrac Bray-Curtis, P<0.01). Neither alpha diversity (P=0.8) nor beta diversity (P=0.19) varied by HIV status. The results of linear discriminant analysis effect size demonstrated that multiple taxa differed significantly between patients with cervical dysplasia vs cancer. Lachnospira bacteria (in the Clostridia class) were particularly enriched among cervical dysplasia patients, while Proteobacteria (members of the Firmicutes phyla and the Comamonadaceae family) were enriched in patients with cervical cancer. DISCUSSION: The results of our study suggest that differences exist in the diversity and composition of the cervical microbiota between patients with cervical dysplasia and patients with cervical cancer in Botswana. Additional studies are warranted to validate these findings and elucidate their clinical significance among women living in sub-Saharan Africa, as well as other regions of the world.


Assuntos
Carcinoma de Células Escamosas/microbiologia , Colo do Útero/microbiologia , Displasia do Colo do Útero/microbiologia , Neoplasias do Colo do Útero/microbiologia , Adulto , Botsuana , Carcinoma de Células Escamosas/patologia , Clostridiales , Comamonadaceae , Feminino , Gardnerella , Humanos , Lactobacillus , Microbiota , Pessoa de Meia-Idade , Gradação de Tumores , Estudos Prospectivos , Proteobactérias , Displasia do Colo do Útero/patologia , Neoplasias do Colo do Útero/patologia
18.
Cult Health Sex ; 22(9): 1063-1079, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-31478784

RESUMO

Despite advances in clinical care, safer conception services are not utilised in many high HIV prevalence countries, including Botswana. We conducted in-depth interviews with 10 HIV healthcare providers and 10 women living with HIV to develop a deeper understanding of attitudes surrounding childbearing and pregnancy planning. Interviews were analysed using a phenomenological approach. Providers felt it was a human right and normative for women living with HIV to have children but also expressed concern about women living with HIV having children. Women themselves anticipated stigma from providers regarding childbearing, although most described supportive care and had not experienced stigmatising treatment. Although providers believed pregnancies amongst women living with HIV were unplanned, women described discussing pregnancy desires with sexual partners. Despite providers voicing a rights-based approach to childbearing amongst women living with HIV, hesitancy towards pregnancy remains. This is felt by women living with HIV and perceived as stigma, which may make them less likely to seek fertility and safer conception advice. Safer conception interventions are unlikely to be successful if women do not feel comfortable discussing childbearing with health-care providers.


Assuntos
Serviços de Planejamento Familiar , Fertilização , Infecções por HIV , Pessoal de Saúde/psicologia , Parceiros Sexuais/psicologia , Estigma Social , Adulto , Botsuana , Criança , Feminino , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Humanos , Entrevistas como Assunto , Masculino , Gravidez , Pesquisa Qualitativa
19.
J Community Psychol ; 48(3): 1066-1070, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31951283

RESUMO

This brief report describes key periods in the history of the national public health response to the human immunodeficiency virus (HIV) epidemic in Botswana. It reveals the context leading to the development of HIV policies presently in place and current challenges that remain. The report concludes with opportunities for future directions, initiatives, and policy changes to reduce the high rates of HIV.


Assuntos
Infecções por HIV/história , Política de Saúde/história , Antirretrovirais/uso terapêutico , Botsuana/epidemiologia , Epidemias , Infecções por HIV/tratamento farmacológico , Política de Saúde/tendências , História do Século XX , História do Século XXI , Humanos
20.
Carcinogenesis ; 40(2): 225-233, 2019 04 29.
Artigo em Inglês | MEDLINE | ID: mdl-30364933

RESUMO

Identification of factors associated with human papillomavirus (HPV) cervical histopathology or recurrence/relapse following loop electrosurgical excision procedure (LEEP) would allow for better management of the disease. We investigated whether gene signatures could (i) associate with HPV cervical histopathology and (ii) identify women with post-LEEP disease recurrence/relapse. Gene array analysis was performed on paraffin-embedded cervical tissue-isolated RNA from two cross-sectional cohorts of antiretroviral therapy (ART)-suppressed HIV+HPV+ coinfected women: (i) 55 women in South Africa recruited into three groups: high risk (HR) (-) (n = 16) and HR (+) (n = 15) HPV without cervical histopathology and HR (+) HPV with cervical intraepithelial neoplasia (CIN) grade 1/2/3 (n = 24), (ii) 28 women in Botswana with CIN2/3 treated with LEEP 12-month prior to recruitment and presenting with (n = 13) and without (n = 15) lesion recurrence/relapse (tissue was analyzed at first LEEP). Three distinct gene expression signatures identified were able to segregate: (i) HR+ HPV and CIN1/2/3, (ii) HR HPV-free and cervical histopathology-free and (iii) HR+ HPV and cervical histopathology-free. Immune activation and neoplasia-associated genes (n = 272 genes; e.g. IL-1A, IL-8, TCAM1, POU4F1, MCM2, SMC1B, CXCL6, MMP12) were a feature of cancer precursor dysplasia within HR HPV infection. No difference in LEEP tissue gene expression was detected between women with or without recurrence/relapse. In conclusion, distinctive gene signatures were associated with presence of cervical histopathology in tissues from ART-suppressed HIV+/HPV+ coinfected women. Lack of detection of LEEP tissue gene signature able to segregate subsequent post-LEEP disease recurrence/relapse indicates additional factors independent of local gene expression as determinants of recurrence/relapse.


Assuntos
Colo do Útero/patologia , Expressão Gênica/genética , Infecções por Papillomavirus/genética , Infecções por Papillomavirus/patologia , Neoplasias do Colo do Útero/genética , Neoplasias do Colo do Útero/patologia , Adulto , Antirretrovirais/farmacologia , Colo do Útero/efeitos dos fármacos , Colo do Útero/virologia , Estudos Transversais , Feminino , Expressão Gênica/efeitos dos fármacos , Perfilação da Expressão Gênica/métodos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/patologia , Infecções por HIV/virologia , Humanos , Recidiva Local de Neoplasia/etiologia , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/virologia , Papillomaviridae/efeitos dos fármacos , Infecções por Papillomavirus/tratamento farmacológico , Infecções por Papillomavirus/virologia , Neoplasias do Colo do Útero/tratamento farmacológico , Neoplasias do Colo do Útero/virologia , Displasia do Colo do Útero/tratamento farmacológico , Displasia do Colo do Útero/genética , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/virologia
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