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1.
JMIR Public Health Surveill ; 10: e55261, 2024 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-39326046

RESUMO

BACKGROUND: Cardiovascular disease (CVD) risk factors tend to cluster and interact multiplicatively and have been incorporated into risk equations such as the Framingham risk score, which can reasonably predict CVD over short- and long-term periods. Beyond risk factor levels at a single time point, recent evidence demonstrated that risk trajectories are differentially related to CVD risk. However, factors associated with suboptimal control or unstable CVD risk trajectories are not yet established. OBJECTIVE: This study aims to examine factors associated with CVD risk trajectories in a semirural, multiethnic community-dwelling population. METHODS: Data on demographic, socioeconomic, lifestyle, mental health, and cardiovascular factors were measured at baseline (2013) and during follow-up (2018) of the South East Asia Community Observatory cohort. The 10-year CVD risk change transition was computed. The trajectory patterns identified were improved; remained unchanged in low, moderate, or high CVD risk clusters; and worsened CVD risk trajectories. Multivariable regression analyses were used to examine the association between risk factors and changes in Framingham risk score and predicted CVD risk trajectory patterns with adjustments for concurrent risk factors. RESULTS: Of the 6599 multiethnic community-dwelling individuals (n=3954, 59.92% female participants and n=2645, 40.08% male participants; mean age 55.3, SD 10.6 years), CVD risk increased over time in 33.37% (n=2202) of the sample population, while 24.38% (n=1609 remained in the high-risk trajectory pattern, which was reflected by the increased prevalence of all major CVD risk factors over the 5-year follow-up. Meanwhile, sex-specific prevalence data indicate that 21.44% (n=567) of male and 41.35% (n=1635) of female participants experienced an increase in CVD risk. However, a stark sex difference was observed in those remaining in the high CVD risk cluster, with 45.1% (n=1193) male participants and 10.52% (n=416) female participants. Regarding specific CVD risk factors, male participants exhibited a higher percentage increase in the prevalence of hypertension, antihypertensive medication use, smoking, and obesity, while female participants showed a higher prevalence of diabetes. Further regression analyses identified that Malay compared to Chinese (P<.001) and Indian (P=.04) ethnicity, nonmarried status (P<.001), full-time employment (P<.001), and depressive symptoms (P=.04) were all significantly associated with increased CVD risk scores. In addition, lower educational levels and frequently having meals from outside were significantly associated to higher odds of both worsening and remaining in high CVD risk trajectories. CONCLUSIONS: Sociodemographics and mental health were found to be differently associated with CVD risk trajectories, warranting future research to disentangle the role of psychosocial disparities in CVD. Our findings carry public health implications, suggesting that the rise in major risk factors along with psychosocial disparities could potentially elevate CVD risk among individuals in underserved settings. More prevention efforts that continuously monitor CVD risk and consider changes in risk factors among vulnerable populations should be emphasized.


Assuntos
Doenças Cardiovasculares , Humanos , Masculino , Feminino , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etnologia , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto , Fatores de Risco , Sudeste Asiático/epidemiologia , Sudeste Asiático/etnologia , Idoso , Etnicidade/estatística & dados numéricos , Medição de Risco/métodos , Fatores de Risco de Doenças Cardíacas
2.
Asian Pac J Cancer Prev ; 25(3): 785-791, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38546061

RESUMO

INTRODUCTION: Breast cancer is the commonest cancer among Malaysian women. Current clinical practice guidelines (CPG) by the Ministry of Health, Malaysia comprise recommendations based on a risk stratification approach. AIM: This paper reviewed and reflected on the challenges and uncertainties that needed to be considered regarding the implementation and delivery of risk-stratified breast cancer screening in Malaysia. METHODS: Our iterative writing, discussions and reflections revolved around the results of key relevant literature search from the Ministry of Health Malaysia website, PubMed, and Google Scholar, and on feedback from local clinical experts in the field of breast cancer screening practice. The articles related to risk-stratified breast cancer screening, genetic testing, screening guidelines for the Malaysia population, and articles published in English were included in this narrative review. RESULT: Further infrastructure and workforce capacity building is needed in order to achieve successful wider implementation e.g.; genetic counselling and testing services are limited in Malaysia. Furthermore, there is a need to elicit Malaysian women's views and evaluate their acceptance of risk-stratified breast cancer screening. The primary healthcare setting is an obvious potential avenue to introduce and deliver initial risk assessment and stratification. However, the workload and willingness of Malaysian primary healthcare doctors to practice risk-stratified screening is yet to be explored to have a better understanding on their perspective. CONCLUSION AND RECOMMENDATION: Identifying a valid and appropriate risk model tailored to the population profile and needs of Malaysian women and conducting a pilot project of risk-stratified screening, guided by implementation science would provide lessons and insights for policymakers, health service managers, and public and primary health care professionals. The results of these activities would increase the likelihood that decisions and plans would lead to the successful implementation in Malaysia of a sustainable and effective breast cancer screening strategy that incorporates a patient-sensitive, risk-stratified approach.


Assuntos
Neoplasias da Mama , Feminino , Humanos , Neoplasias da Mama/diagnóstico , Detecção Precoce de Câncer , Malásia/epidemiologia , Aceitação pelo Paciente de Cuidados de Saúde
3.
Cell Death Discov ; 10(1): 6, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38182576

RESUMO

There is increasing recognition that cells may activate apoptotic caspases but not die, instead displaying various physiologically relevant consequences. Mechanisms that underlie the life-or-death decision in a cell that has activated apoptotic caspases, however, are incompletely understood. By optimizing a published reporter for past caspase activity, we were able to visualize cells that survived caspase activation specifically after exposure to ionizing radiation in Drosophila larval wing discs. We found that cells with X-ray-induced past active caspases (XPAC) did not arise at random but were born at specific locations within the developing wing imaginal discs of Drosophila larvae. Inhibiting key components of the apoptotic pathway decreased XPAC number, suggesting that apoptotic signaling is needed to induce XPAC cells. Yet, XPAC cells appeared in stereotypical patterns that did not follow the pattern of IR-induced apoptosis, suggesting additional controls at play. Functional testing identified the contribution of wingless (Drosophila Wnt1) and Ras signaling to the prevalence of XPAC cells. Furthermore, by following irradiated larvae into adulthood, we found that XPAC cells contribute to the adult wing. To address the relationship between XPAC and genome stability, we combined a reporter for past caspase activity with mwh, an adult marker for Loss of Heterozygosity (LOH). We found a lower incidence of LOH among XPAC compared to cells that did not activate the reporter for past caspase activity. In addition, at time points when wing disc cells are finishing DNA repair, XPAC cells show an anti-correlation with cells with unrepaired IR-induced double-stranded breaks. Our data suggest that non-lethal caspase activity safeguards the genome by facilitating DNA repair and reducing LOH after transient exposure to X-rays. These results identify a physiological role for non-lethal caspase activity during recovery from radiation damage.

4.
Genetics ; 226(1)2024 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-37874851

RESUMO

Loss of heterozygosity (LOH) can occur when a heterozygous mutant cell loses the remaining wild-type allele to become a homozygous mutant. LOH can have physiological consequences if, for example, the affected gene encodes a tumor suppressor. We used fluorescent reporters to study the mechanisms of LOH induction by X-rays, a type of ionizing radiation (IR), in Drosophila melanogaster larval wing discs. IR is used to treat more than half of patients with cancer, so understanding its effects is of biomedical relevance. Quantitative analysis of IR-induced LOH at different positions between the telomere and the centromere on the X chromosome showed a strong sex dependence and the need for a recombination-proficient homologous chromosome, whereas, paradoxically, position along the chromosome made little difference in LOH incidence. We propose that published data documenting high recombination frequency within centromeric heterochromatin on the X chromosome can explain these data. Using a focused screen, we identified E2F1 as a key promotor of LOH and further testing suggests a mechanism involving its role in cell-cycle regulation. We leveraged the loss of a transcriptional repressor through LOH to express transgenes specifically in cells that have already acquired LOH. This approach identified JNK signaling and apoptosis as key determinants of LOH maintenance. These studies reveal previously unknown mechanisms for the generation and elimination of cells with chromosome aberrations after exposure to IR.


Assuntos
Cromossomos , Drosophila melanogaster , Animais , Humanos , Aberrações Cromossômicas , Drosophila melanogaster/genética , Fator de Transcrição E2F1/genética , Heterozigoto , Perda de Heterozigosidade
5.
PLoS One ; 18(10): e0288437, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37796803

RESUMO

INTRODUCTION: Breast cancer (BC) screening uptake in Malaysia is low and a high number of cases present at a late stage. Community navigation and mobile health (mHealth) may increase screening attendance, particularly by women from rural communities. This randomized controlled study evaluated an intervention that used mHealth and community health workers to educate women about BC screening and navigate them to clinical breast examination (CBE) services in the context of the COVID-19 pandemic. METHODS: Women aged 40-74 years, from Segamat, Malaysia, with a mobile phone number, who participated in the South East Asian Community Observatory health survey, (2018) were randomized to an intervention (IG) or comparison group (CG). The IG received a multi-component mHealth intervention, i.e. information about BC was provided through a website, and telephone calls and text messages from community health workers (CHWs) were used to raise BC awareness and navigate women to CBE services. The CG received no intervention other than the usual option to access opportunistic screening. Regression analyses were conducted to investigate between-group differences over time in uptake of screening and variable influences on CBE screening participation. RESULTS: We recruited 483 women in total; 122/225 from the IG and 144/258 from the CG completed the baseline and follow-up survey. Uptake of CBE by the IG was 45.8% (103/225) whilst 3.5% (5/144) of women from the CG who completed the follow-up survey reported that they attended a CBE during the study period (adjusted OR 37.21, 95% CI 14.13; 98.00, p<0.001). All IG women with a positive CBE attended a follow-up mammogram (11/11). Attendance by IG women was lower among women with a household income ≥RM 4,850 (adjusted OR 0.48, 95% CI 0.20; 0.95, p = 0.038) compared to participants with a household income

Assuntos
Neoplasias da Mama , COVID-19 , Telemedicina , Feminino , Humanos , Malásia , Pandemias , COVID-19/diagnóstico , COVID-19/epidemiologia , Educação em Saúde , Neoplasias da Mama/epidemiologia
6.
BMJ Open ; 13(8): e072166, 2023 08 31.
Artigo em Inglês | MEDLINE | ID: mdl-37652591

RESUMO

OBJECTIVE: To conduct a cultural adaptation and validation of the Champion Health Belief Model Scale (CHBMS) for colorectal cancer (CRC) screening (CHBMS-CRC-M) in order to assess and investigate perceptions and beliefs about CRC screening in Malaysia. DESIGNS AND PARTICIPANTS: The results from an evidence synthesis and the outcomes from an expert panel discussion were used to shape CHBMS scale content into an assessment of beliefs about CRC screening (CHBMS-CRC). This questionnaire assessment was translated into the official language of Malaysia. An initial study tested the face validity of the new scale or questionnaire with 30 men and women from various ethnic groups. Factorial or structural validity was investigated in a community sample of 954 multiethnic Malaysians. SETTING: Selangor state, Malaysia. RESULTS: The new scale was culturally acceptable to the three main ethnic groups in Malaysia and achieved good face validity. Cronbach's alpha coefficients ranged from 0.66 to 0.93, indicating moderate to good internal consistency. Items relating to perceived susceptibility to CRC 'loaded' on Factor 1 (with loadings scoring above 0.90); perceived benefits of CRC screening items loaded on factor 2 and were correlated strongly (loadings ranged between 0.63 and 0.83) and perceived barriers (PBA) to CRC screening (PBA) items loaded on factor 3 (range 0.30-0.72). CONCLUSION: The newly developed CHBMS-CRC-M fills an important gap by providing a robust scale with which to investigate and assess CRC screening beliefs and contribute to efforts to enhance CRC screening uptake and early detection of CRC in Malaysia and in other Malay-speaking communities in the region.


Assuntos
Detecção Precoce de Câncer , Neoplasias , Feminino , Humanos , Masculino , Povo Asiático , Malásia , Análise de Componente Principal
7.
BMC Public Health ; 23(1): 1319, 2023 07 10.
Artigo em Inglês | MEDLINE | ID: mdl-37430228

RESUMO

BACKGROUND: Many upper-middle-income countries (UMICs), including Malaysia, continue to face low breast cancer (BC) screening rates and patients with delayed presentation of BC. This study investigated the role of beliefs about BC and use of screening (e.g. beliefs about whether or not screening reduced the possibility of dying from BC). METHODS: A nationwide cross-sectional study was conducted in which a total of 813 women (aged ≥ 40 years old) were randomly selected and surveyed using the validated Awareness and Beliefs about Cancer (ABC) measure. The association between BC screening use, sociodemographic characteristics, and negative beliefs about BC screening were analysed using stepwise Poisson regressions. RESULTS: Seven out of ten Malaysian women believed that BC screening was necessary only when experiencing cancer symptoms. Women > 50 years and from households with more than one car or motorcycle were 1.6 times more likely to attend a mammogram or a clinical breast examination (mammogram: Prevalence Ratio (PR) = 1.60, 95% Confidence Interval (CI) = 1.19-2.14, Clinical Breast Examination (CBE): PR = 1.61, 95% CI = 1.29-1.99). About 23% of women expected to feel anxious about attending BC screening, leading them to avoid the procedure. Women who held negative beliefs about BC screening were 37% less likely to attend a mammogram (PR = 0.63, 95% CI = 0.42-0.94) and 24% less likely to seek a CBE (PR = 0.75, 95% CI = 0.60-0.95). CONCLUSIONS: Public health strategies or behaviour interventions targeting negative beliefs about BC screening among Malaysian women may increase uptake and reduce late presentation and advanced-stage cancer. Insights from the study suggest that women under 50 years, in the lower income group without a car or motorcycle ownership, and of Malay or Indian ethnicity (compared to Chinese-Malay) are more likely to hold beliefs inhibiting BC screening.


Assuntos
Neoplasias da Mama , Detecção Precoce de Câncer , Humanos , Feminino , Adulto , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/prevenção & controle , Malásia , Estudos Transversais , Mamografia
8.
bioRxiv ; 2023 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-37214983

RESUMO

Loss of Heterozygosity (LOH) can occur when a heterozygous mutant cell loses the remaining wild type allele to become a homozygous mutant. LOH can have physiological consequences if, for example, the affected gene encodes a tumor suppressor. We used two fluorescent reporters to study mechanisms of LOH induction by X-rays, a type of ionizing radiation (IR), in Drosophila larval wing discs. IR is used to treat more than half of cancer patients, so understanding its effects is of biomedical relevance. We report that IR-induced LOH does not correlate with the chromosomal position of the LOH locus, unlike previously shown for spontaneously occurring LOH. Like spontaneous LOH, however, IR-induced LOH of X-linked loci shows a sex-dependence, occurring predominately in females. A focused genetic screen identified E2F1 as a key promotor of LOH and further testing suggests a mechanism involving its role in cell cycle regulation rather than apoptosis. We combined the QF/QS LOH reporter with QUAS-transgenes to manipulate gene function after LOH induction. This approach identified JNK signaling and apoptosis as key determinants of LOH maintenance. These studies reveal previously unknown mechanisms for generation and maintenance of cells with chromosome aberrations after exposure to IR.

9.
BMJ Open ; 13(3): e066925, 2023 03 21.
Artigo em Inglês | MEDLINE | ID: mdl-36944471

RESUMO

OBJECTIVES: The 2020-2022 research project 'Colorectal Cancer Screening Intervention for Malaysia' (CRC-SIM) evaluated the implementation of a home-based CRC screening pilot in Segamat District. This budget impact analysis (BIA) assessed the expected changes in health expenditure of the Malaysian Ministry of Health budget in the scenario where the pilot programme was implemented nationwide vs current opportunistic screening. DESIGN: Budget impact analysis. Assumptions and costs in the opportunistic and novel CRC screening scenarios were derived from a previous evaluation of opportunistic CRC screening in community health clinics across Malaysia and the CRC-SIM research project, respectively. SETTING: National level (with supplement analysis for district level). The BIA was conducted from the viewpoint of the federal government and estimated the annual financial impact over a period of 5 years. RESULTS: The total annual cost of the current practice of opportunistic screening was RM1 584 321 (~I$1 099 460) of which 80% (RM1 274 690 or ~I$884 587) was expended on the provision of opportunistic CRC to adults who availed of the service. Regarding the implementation of national CRC screening programme, the net budget impact in the first year was estimated to be RM107 631 959 (~I$74 692 546) and to reach RM148 485 812 (~I$103 043 589) in the fifth year based on an assumed increased uptake of 5% annually. The costs were calculated to be sensitive to the probability of adults who were contactable, eligible and agreeable to participating in the programme. CONCLUSIONS: Results from the BIA provided direct and explicit estimates of the budget changes to when implementing a population-based national CRC screening programme to aid decision making by health services planners and commissioners in Malaysia about whether such programme is affordable within given their budget constraint. The study also illustrates the use and value of the BIA approach in low-income and middle-income countries and resource-constrained settings.


Assuntos
Neoplasias Colorretais , Detecção Precoce de Câncer , Humanos , Análise Custo-Benefício , Malásia , Detecção Precoce de Câncer/métodos , Orçamentos , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/prevenção & controle , Programas de Rastreamento/métodos
10.
BMC Cancer ; 23(1): 22, 2023 Jan 06.
Artigo em Inglês | MEDLINE | ID: mdl-36609260

RESUMO

INTRODUCTION: The Colorectal Cancer Screening Intervention for Malaysia (CRC-SIM) was a CRC study of home-based testing designed to improve low screening uptake using the immunochemical fecal occult blood test (iFOBT) in Malaysia. METHODS: This quasi-experimental study was informed by the Implementation Research Logic Model and evaluated with the RE-AIM framework. Trained data collectors recruited by phone, randomly selected, asymptomatic adults aged 50-75 years from Segamat District, who previously completed a health census form for the South East Asia Community Observatory (SEACO). Participants were posted an iFOBT kit and asked to return a photo of the completed test for screening by health care professionals. A regression analysis of evaluation data was conducted to identify which variables were associated with the outcome indicators of 'study participation' and 'iFOBT completion' and the CRC-SIM was evaluated in terms of its appropriateness, feasibility and acceptability. RESULTS: Seven hundred forty-seven eligible adults (52%) agreed to participate in this study and received an iFOBT kit. Participation was significantly lower amongst Chinese Malaysians (adjusted OR 0.45, 95% CI 0.35 - 0.59, p<0.001) compared to Malays and amongst participants from the rural sub-district (Gemereh) (adjusted OR 0.71, 95% CI 0.54 - 0.92, p=0.011) compared to the urban sub-district (Sungai Segamat). Less than half of participants (42%, n=311/747) completed the iFOBT. Test-kit completion was significantly higher amongst Chinese Malaysians (adjusted OR 3.15, 95% CI 2.11 - 4.69, p<0.001) and lower amongst participants with a monthly household income ≥RM 4,850 (adjusted OR 0.58, 95% CI 0.39 - 0.87, p=0.009) compared to participants with a lower household income. The main reported reason for non-participation was 'not interested' (58.6%) and main implementation challenges related to invalid photographs from participants and engaging iFOBT positive participants in further clinic consultations and procedures. CONCLUSION: Home-testing for CRC (test completion) appeared to be acceptable to only around one-fifth of the target population in Malaysia. However, mindful of the challenging circumstances surrounding the pandemic, the CRC-SIM merits consideration by public health planners as a method of increasing screening in Malaysia, and other low- and middle-income countries.


Assuntos
Neoplasias Colorretais , Detecção Precoce de Câncer , Adulto , Humanos , Malásia/epidemiologia , Detecção Precoce de Câncer/métodos , Colonoscopia/métodos , Análise de Regressão , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/prevenção & controle , Sangue Oculto , Programas de Rastreamento/métodos
11.
Asia Pac J Public Health ; 35(1): 27-33, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36588191

RESUMO

According to the Malaysian National Cancer Registry (MNCR), more than 70% of colorectal cancer (CRC) cases in Malaysia are presented in the advanced stages of the disease, leading to poor survival rates while taxing the health care system. This study aims to explore the barriers to and facilitators of CRC screening uptake in the perspectives of the general population, health care providers, and policymakers. In-depth, semi-structured interviews were conducted with 25 purposively sampled respondents comprising general population above the age of 40, health care providers, and policymakers. Commonly reported barriers to CRC screening included psychological, poor knowledge and awareness, lack of physicians' recommendation, and inadequate implementation of CRC-related campaigns at systemic level. Facilitating factors for CRC screening included family support and family history of CRC. A comprehensive understanding of barriers and facilitators is relevant for designing an effective intervention and policy to increase CRC screening rates in Malaysia.


Assuntos
Neoplasias Colorretais , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Detecção Precoce de Câncer , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/prevenção & controle , Neoplasias Colorretais/psicologia , Povo Asiático , Malásia/epidemiologia , Programas de Rastreamento
12.
Radiat Res ; 199(2): 132-147, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36583948

RESUMO

Clonogenic assays evaluate the ability of single cells to proliferate and form colonies. This process approximates the regrowth and recurrence of tumors after treatment with radiation or chemotherapy, and thereby provides a drug discovery platform for compounds that block this process. However, because of their labor-intensive and cumbersome nature, adapting canonical clonogenic assays for high throughput screening (HTS) has been challenging. We overcame these barriers by developing an integrated system that automates cell- and liquid-handling, irradiation, dosimetry, drug administration, and incubation. Further, we developed a fluorescent live-cell based automated colony scoring methodology that identifies and counts colonies precisely based upon actual nuclei number rather than colony area, thereby eliminating errors in colony counts caused by radiation induced changes in colony morphology. We identified 13 cell lines from 7 cancer types, where radiation is a standard treatment module, that exhibit identical radiation and chemoradiation response regardless of well format and are amenable to miniaturization into small-well HTS formats. We performed pilot screens through a 1,584 compound NCI Diversity Set library using two cell lines representing different cancer indications. Radiation modulators identified in the pilot screens were validated in traditional clonogenic assays, providing proof-of-concept for the screen. The integrated methodology, hereafter "clonogenic HTS", exhibits excellent robustness (Z' values > 0.5) and shows high reproducibility (>95%). We propose that clonogenic HTS we developed can function as a drug discovery platform to identify compounds that inhibit tumor regrowth following radiation therapy, to identify new efficacious pair-wise combinations of known oncologic therapies, or to identify novel modulators ofapproved therapies.


Assuntos
Ensaios de Triagem em Larga Escala , Neoplasias , Humanos , Reprodutibilidade dos Testes , Linhagem Celular , Ensaios de Triagem em Larga Escala/métodos , Descoberta de Drogas/métodos
13.
PLoS One ; 17(12): e0279489, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36580458

RESUMO

BACKGROUND: Colorectal cancer (CRC) incidence in Malaysia is increasing, and most CRC patients are diagnosed at a late stage. This study investigated participant awareness of CRC and their perceptions and views about CRC screening, barriers, benefits, and facilitators towards CRC screening participation as well as health-seeking behaviour and the use of preventative health services. METHOD: Eleven focus group discussions (FGDs) were conducted with a purposive sample of 89 participants aged > 50 from the major ethnic groups in the Segamat District, Johor State. FGDs were audiotaped, transcribed verbatim, and translated into English. Data were analysed using thematic analysis. RESULTS: We identified trust in doctors as a key reason for whether or not to seek health care. Generally, the participants had low awareness of CRC sign/symptoms and screening. Emotional and logistic concerns about sending a stool sample to a clinic emerged as the main barriers to screening. Simplified illustrated instructions about stool collection in Malay, Chinese and Tamil, free screening at health clinics and reminders to complete the iFOBT test were perceived to facilitate engagement in screening, and posited as strategies that were likely to increase iFOBT uptake. CONCLUSION: Primary care physicians play a crucial role in terms of reducing patient's misperceptions, recommending screening to patients, enhancing attendance, and improving uptake of CRC screening. There is a need for further research to investigate ways in which to reduce identified barriers and implement and test potential facilitative strategies as well as examine adherence by doctors to clinical guidelines about CRC screening.


Assuntos
Neoplasias Colorretais , Sangue Oculto , Humanos , Malásia/epidemiologia , Índia , Detecção Precoce de Câncer/psicologia , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/prevenção & controle , Programas de Rastreamento
14.
BMJ Open ; 12(9): e058420, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-36581978

RESUMO

INTRODUCTION: Colorectal cancer (CRC) is the second most common cancer in Malaysia and cases are often detected late. Improving screening uptake is key in down-staging cancer and improving patient outcomes. The aim of this study is to develop, implement and evaluate an intervention to improve CRC screening uptake in Malaysia in the context of the COVID-19 pandemic. The evaluation will include ascertaining the budgetary impact of implementing and delivering the intervention. METHODS AND ANALYSIS: The implementation research logic model guided the development of the study and implementation outcome measures were informed by the 'Reach, Effectiveness, Adoption, Implementation and Maintenance' (RE-AIM) framework. This CRC screening intervention for Malaysia uses home-testing and digital, small media, communication to improve CRC screening uptake. A sample of 780 people aged 50-75 years living in Segamat district, Malaysia, will be selected randomly from the South East Asia Community Observatory (SEACO) database. Participants will receive a screening pack as well as a WhatsApp video of a local doctor to undertake a stool test safely and to send a photo of the test result to a confidential mobile number. SEACO staff will inform participants of their result. Quantitative data about follow-up clinic attendance, subsequent hospital tests and outcomes will be collected. Logistic regression will be used to investigate variables that influence screening completion and we will conduct a budget impact-analysis of the intervention and its implementation. Qualitative data about intervention implementation from the perspective of participants and stakeholders will be analysed thematically. ETHICS AND DISSEMINATION: Ethics approval has been granted by Monash University Human Research Ethics Committee (MUHREC ID: 29107) and the Medical Review and Ethics Committee (Reference: 21-02045-O7G(2)). Results will be disseminated through publications, conferences and community engagement activities. TRIAL REGISTRATION NUMBER: National Medical Research Register Malaysia: 21-02045-O7G(2).


Assuntos
COVID-19 , Neoplasias Colorretais , Humanos , Pandemias/prevenção & controle , Malásia/epidemiologia , Detecção Precoce de Câncer/métodos , COVID-19/diagnóstico , COVID-19/epidemiologia , Neoplasias Colorretais/epidemiologia
15.
Bull World Health Organ ; 100(10): 601-609, 2022 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-36188011

RESUMO

Objective: To determine the proportion of adults with hypertension who reported: (i) having been previously diagnosed with hypertension; (ii) taking blood pressure-lowering medication; and (iii) having achieved hypertension control, in five health and demographic surveillance system sites across five countries in Asia. Methods: Data were collected during household surveys conducted between 2016 and 2020 in the five surveillance sites in Bangladesh, India, Indonesia, Malaysia and Viet Nam. We defined hypertension as systolic blood pressure ≥ 140 mmHg, diastolic blood pressure ≥ 90 mmHg or taking blood pressure-lowering medication. We defined hypertension control as systolic blood pressure < 140 mmHg and diastolic blood pressure < 90 mmHg. We disaggregated hypertension awareness, treatment and control by surveillance site, and within each site by sex, age group, education, body mass index and smoking status. Findings: Of 22 142 participants, 11 137 had hypertension (Bangladesh: 211; India: 487; Indonesia: 1641; Malaysia: 8164; and Viet Nam: 634). The mean age of participants with hypertension was 60 years (range: 19-101 years). Only in the Malaysian site were more than half of individuals with hypertension aware of their condition. Hypertension treatment ranged from 20.8% (341/1641; 95% CI: 18.8-22.8%) in the Indonesian site to 44.7% (3649/8164; 95% CI: 43.6-45.8%) in the Malaysian site. Less than one in four participants with hypertension had achieved hypertension control in any site. Hypertension awareness, treatment and control were generally higher among women and older adults. Conclusion: While hypertension awareness and treatment varied widely across surveillance sites, hypertension control was low in all sites.


Assuntos
Hipertensão , Adulto , Idoso , Idoso de 80 Anos ou mais , Bangladesh/epidemiologia , Estudos Transversais , Feminino , Humanos , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia , Índia/epidemiologia , Indonésia/epidemiologia , Malásia/epidemiologia , Pessoa de Meia-Idade , Prevalência , Vietnã/epidemiologia , Adulto Jovem
16.
Eur J Cancer Care (Engl) ; 31(5): e13675, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35946147

RESUMO

OBJECTIVES: This study investigated women's health beliefs, the use of breast cancer (BC) screening services, and the factors that potentially influence uptake of screening. METHODS: Face-to-face interviews were conducted with a randomly selected community sample of 992 women (>40 years old) in Selangor State, Malaysia. RESULTS: Approximately 35% of women received a clinical breast examination (CBE) and 27% had a mammogram within the last 1 to 2 years. The regression analyses indicated that Chinese ethnicity has higher perceived susceptibility to BC compared to Malay ethnicity (mean 7.74, SD: 2.75; 95% CI 0.09, 1.03) whilst a lower perceived susceptibility was observed in women aged ≥70 years (mean 6.67, SD: 3.01; 95% CI -1.66, -0.24) compared to women aged 40-49 years. Indian Malaysian women (mean 16.87, SD: 2.59; 95% CI 0.12, 1.01) and women who had received a CBE (mean 16.10, SD:2.35; 95% CI 0.18, 0.89) were more likely to have higher perceived benefits scoring. Indian ethnicity, secondary education and tertiary education, top 20% income group, past history of CBE and mammogram uptake were significantly associated with lower barriers scoring. CONCLUSIONS: There is a need to target BC screening uptake improvement programmes towards communities in which women experience disadvantages related to income, education, employment, and, in particular, to tailor programmes to take into consideration differences between ethnic groups regarding their beliefs about cancer screening.


Assuntos
Neoplasias da Mama , Detecção Precoce de Câncer , Adulto , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Malásia , Mamografia , Programas de Rastreamento , Saúde da Mulher
17.
J Med Internet Res ; 24(8): e36316, 2022 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-35969450

RESUMO

BACKGROUND: Cancer screening provision in resource-constrained settings tends to be opportunistic, and uptake tends to be low, leading to delayed presentation and treatment and poor survival. OBJECTIVE: The aim of this study was to identify, review, map, and summarize findings from different types of literature reviews on the use of mobile health (mHealth) technologies to improve the uptake of cancer screening. METHODS: The review methodology was guided by the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews). Ovid MEDLINE, PyscINFO, and Embase were searched from inception to May 2021. The eligible criteria included reviews that focused on studies of interventions that used mobile phone devices to promote and deliver cancer screening and described the effectiveness or implementation of mHealth intervention outcomes. Key data fields such as study aims, types of cancer, mHealth formats, and outcomes were extracted, and the data were analyzed to address the objective of the review. RESULTS: Our initial search identified 1981 titles, of which 12 (0.61%) reviews met the inclusion criteria (systematic reviews: n=6, 50%; scoping reviews: n=4, 33%; rapid reviews: n=1, 8%; narrative reviews: n=1, 8%). Most (57/67, 85%) of the interventions targeted breast and cervical cancer awareness and screening uptake. The most commonly used mHealth technologies for increasing cancer screening uptake were SMS text messages and telephone calls. Overall, mHealth interventions increased knowledge about screening and had high acceptance among participants. The likelihood of achieving improved uptake-related outcomes increased when interventions used >1 mode of communication (telephone reminders, physical invitation letters, and educational pamphlets) together with mHealth. CONCLUSIONS: mHealth interventions increase cancer screening uptake, although multiple modes used in combination seem to be more effective.


Assuntos
Telefone Celular , Neoplasias , Telemedicina , Envio de Mensagens de Texto , Detecção Precoce de Câncer , Humanos , Neoplasias/diagnóstico , Telemedicina/métodos , Telefone
18.
PLoS One ; 17(5): e0267308, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35594267

RESUMO

INTRODUCTION: Breast cancer patients in low- and middle-income countries often present at an advanced stage. This qualitative study elicited views regarding the challenges and opportunities for breast cancer screening and early detection among women in a low-income semi-rural community in Segamat district, Malaysia. METHODS: Individual semi-structured interviews with 22 people (health professionals, cancer survivors, community volunteers and member from a non-governmental organization) and four focus group discussions (n = 22 participants) with women from a local community were conducted. All participants were purposively sampled and female residents registered with the South East Asia Community Observatory aged ≥40 years were eligible to participate in the focus group discussions. Data were transcribed verbatim and analyzed using thematic analysis. RESULTS: The thematic analysis illuminated barriers, challenges and opportunities across six domains: (i) personal experiences and barriers to help-seeking as well as financial and travel access barriers; (ii) primary care challenges (related to delivering clinical breast examination and teaching breast-self-examination); (iii) secondary care challenges (related to mammogram services); (iv) disconnection between secondary and primary care breast cancer screening pathways; and (v) opportunities to improve breast cancer early detection relating to community civil service society activities (i.e. awareness raising, support groups, addressing stigma/embarrassment and encouraging husbands to support women) and vi) links between public healthcare personnel and community (i.e. improving breast self-examination education, clinical breast examination provision and subsidised mammograms). CONCLUSION: The results point to a variety of reasons for low uptake and, therefore, to the complex nature of improving breast cancer screening and early detection. There is a need to adopt a systems approach to address this complexity and to take account of the socio-cultural context of communities in order, in turn, to strengthen cancer control policy and practices in Malaysia.


Assuntos
Neoplasias da Mama , Detecção Precoce de Câncer , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Feminino , Humanos , Malásia/epidemiologia , Pesquisa Qualitativa , População Rural
20.
Artigo em Inglês | MEDLINE | ID: mdl-35162641

RESUMO

This study evaluated the impact of the 'Be Cancer Alert' mass media campaign for breast cancer (BCAC-BC) in terms of changes to women's health beliefs regarding BC susceptibility and the benefits and barriers of breast cancer screening in Malaysia. Pre- and post-campaign surveys evaluated changes in health beliefs among women aged 40 years and above (n = 676). The perceived susceptibility to breast cancer was significantly higher at follow-up (mean ± SD: 7.30 ± 2.77 vs. 7.63 ± 2.58, p = 0.008) whereas the mean score for the perceived benefits of undertaking screening was high at baseline and follow-up (16.34 ± 2.36 vs. 15.95 ± 2.07, p = 0.001). The perceptions or beliefs about barriers to screening did not change significantly (31.70 ± 8.26 vs. 31.77 ± 7.63, p = 0.841). Regression analyses indicated that mean scores for the barriers subscale were significantly lower among Chinese women (-2.61, 95% CI -4.67, -0.55, p = 0.013) compared to Malay, and among single compared to married women (-2.40, 95% CI -4.60, -0.21, p = 0.032) after adjustment for other demographic variables and past screening history. Malaysian women appeared to already have positive perceptions before the BCAC-BC mass media campaign about the benefits of BC screening. However, the campaign appeared to be linked to both an increased awareness of the susceptibility to breast cancer and to positive beliefs that countered emotional barriers to screening, particularly among single women and Chinese-Malay women.


Assuntos
Neoplasias da Mama , Adulto , Neoplasias da Mama/psicologia , Detecção Precoce de Câncer/psicologia , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Malásia/epidemiologia , Mamografia/psicologia , Programas de Rastreamento/psicologia , Inquéritos e Questionários
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