Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 19 de 19
Filtrar
1.
Ann Glob Health ; 88(1): 68, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36043041

RESUMO

The surgical burden of neglected tropical diseases (NTDs) is set to rise alongside average temperatures and drought. NTDs with surgical indications, including trachoma and lymphatic filariasis, predominantly affect people in low- and middle-income countries where the gravest effects of climate change are likely to be felt. Vectors sensitive to temperature and rainfall will likely expand their reach to previously nonendemic regions, while drought may exacerbate NTD burden in already resource-strained settings. Current NTD mitigation strategies, including mass drug administrations, were interrupted by COVID-19, demonstrating the vulnerability of NTD progress to global events. Without NTD programming that meshes with surgical systems strengthening, climate change may outpace current strategies to reduce the burden of these diseases.


Assuntos
COVID-19 , Filariose Linfática , Medicina Tropical , COVID-19/epidemiologia , Mudança Climática , Filariose Linfática/epidemiologia , Humanos , Doenças Negligenciadas/epidemiologia
2.
Glob Health Sci Pract ; 10(1)2022 02 28.
Artigo em Inglês | MEDLINE | ID: mdl-35294388

RESUMO

Surgery, anesthesia, and obstetric (SAO) care is quickly being recognized for its critical role in cost-effectively improving global morbidity and mortality. Six core indicators for SAO capacity were established in 2015 by the Lancet Commission on Global Surgery (LCoGS) and include: SAO provider density, population proximity to surgery-ready facilities, annual national operative volume, a system to track perioperative mortality rate, and protection from impoverishing and catastrophic expenditures. The surgical capacity of Kenya, a lower-middle-income country, has not been evaluated using this framework. Our goal was to review published literature on surgery in Kenya to assess the country's surgical capacity and system strength. A narrative review of the relevant literature provided estimates for each LCoGS indicator. While progress has been made in expanding access to care across the country, key steps remain in the effort to provide equitable, affordable, and timely care to Kenya's population through universal health coverage. Additional investment into training SAO providers, operative infrastructure, and accessibility are recommended through a national surgery, obstetric, and anesthesia plan.


Assuntos
Anestesiologia , Feminino , Humanos , Quênia , Gravidez , Cobertura Universal do Seguro de Saúde
3.
J Int AIDS Soc ; 23 Suppl 1: e25499, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32562353

RESUMO

INTRODUCTION: As people with HIV age, prevention and management of other communicable and non-communicable diseases (NCDs) will become increasingly important. Integration of screening and treatment for HIV and NCDs is a promising approach for addressing the dual burden of these diseases. The aim of this study was to assess the epidemiological impact and cost-effectiveness of a community-wide integrated programme for screening and treatment of HIV, hypertension and diabetes in Kenya. METHODS: Coupling a microsimulation of cardiovascular diseases (CVDs) with a population-based model of HIV dynamics (the Spectrum), we created a hybrid HIV/CVD model. Interventions were modelled from year 2019 (baseline) to 2023, and population was followed to 2033. Analyses were carried at a national level and for three selected regions (Nairobi, Coast and Central). RESULTS: At a national level, the model projected 7.62 million individuals living with untreated hypertension, 692,000 with untreated diabetes and 592,000 individuals in need of ART in year 2018. Improving ART coverage from 68% at baseline to 88% in 2033 reduced HIV incidence by an estimated 64%. Providing NCD treatment to 50% of diagnosed cases from 2019 to 2023 and maintaining them on treatment afterwards could avert 116,000 CVD events and 43,600 CVD deaths in Kenya over the next 15 years. At a regional level, the estimated impact of expanded HIV services was highest in Nairobi region (averting 42,100 HIV infections compared to baseline) while Central region experienced the highest impact of expanded NCD treatment (with a reduction of 22,200 CVD events). The integrated HIV/NCD intervention could avert 7.76 million disability-adjusted-life-years (DALYs) over 15 years at an estimated cost of $6.68 billion ($445.27 million per year), or $860.30 per DALY averted. At a cost-effectiveness threshold of $2,010 per DALY averted, the probability of cost-effectiveness was 0.92, ranging from 0.71 in Central to 0.92 in Nairobi region. CONCLUSIONS: Integrated screening and treatment of HIV and NCDs can be a cost-effective and impactful approach to save lives of people with HIV in Kenya, although important variation exists at the regional level. Containing the substantial costs required for scale-up will be critical for management of HIV and NCDs on a national scale.


Assuntos
Doenças Cardiovasculares/diagnóstico , Diabetes Mellitus/diagnóstico , Infecções por HIV/diagnóstico , Serviços de Saúde/economia , Hipertensão/diagnóstico , Programas de Rastreamento , Doenças não Transmissíveis/epidemiologia , Adulto , Doenças Cardiovasculares/terapia , Análise Custo-Benefício , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/terapia , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/terapia , Humanos , Hipertensão/economia , Hipertensão/epidemiologia , Hipertensão/terapia , Quênia/epidemiologia , Masculino , Programas de Rastreamento/economia , Doenças não Transmissíveis/economia , Anos de Vida Ajustados por Qualidade de Vida
4.
BMC Public Health ; 18(Suppl 3): 1221, 2018 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-30400916

RESUMO

BACKGROUND: Cervical cancer is a major public health concern in Kenya. It is the leading cause of cancer morbidity and mortality among women. Although screening is an effective prevention method, uptake is low among eligible women. Little is known about predictors of cervical cancer screening uptake. This study explored relationship between uptake of cervical cancer screening, socio-demographic, behavioral and biological risk factors. METHODS: Nested case-control study within STEPS survey, a population-based cross-sectional household survey conducted between April and June 2015.Cases were women who had undergone cervical cancer screening and controls were unscreened women. Study participants were women eligible for cervical cancer screening (30-49 years). Variables included socio-demographic; behavioral risk factors such as physical activity, tobacco and alcohol use diet and biological factors like diabetes and hypertension. Outcome of interest was cervical cancer screening. Data analysis was done using STATA version 14. Logistic regression model was used to assess relationship between cervical cancer screening and socio-demographic, behavioral and biological risk factors. RESULTS: Of 1180 women interviewed, 16.4% (n = 194) had been screened for cervical cancer. Of unscreened women (n = 986), 67.9% were aware of cervical cancer screening. Higher screening rates were observed in more educated women (25.2%), highest income quintile (29.6%) and living in urban areas (23%) than in women with no formal education (3.2%), poorest (3.6%) and living in rural areas (13.8%). Younger women (35-39) and those with low High-density lipoprotein (HDL) were less likely to be screened [OR = 0.56; 95% CI = (0.34, 0.93); p-value = 0.025] and [OR = 0.51; 95% CI = (0.29, 0.91); p = value 0.023] respectively. Self-employed women, those in the fourth wealth quintile, binge drinkers, high sugar consumption and insufficient physical activity were more likely to be screened [OR 2.55 (1.12, 5.81) p value 0.026], [OR 3.56 (1.37, 9.28) p value 0.009], [OR 5.94 (1.52, 23.15) p value 0.010], [OR 2.99 (1.51, 5.89) p value 0.002] and [OR 2.79 (1.37, 5.68) p value 0.005] respectively. CONCLUSION: Uptake of cervical cancer screening is low despite high awareness. Strategies to improve cervical cancer screening in Kenya should be implemented with messages targeting persons with both risky and non-risky lifestyles especially younger women with no formal education living in rural areas.


Assuntos
Detecção Precoce de Câncer/estatística & dados numéricos , Neoplasias do Colo do Útero/prevenção & controle , Adulto , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Quênia , Pessoa de Meia-Idade , Fatores de Risco , Inquéritos e Questionários
5.
Glob Public Health ; 13(12): 1889-1899, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-27043484

RESUMO

A meta-analysis by Van Howe of 109 populations confirms the well-known association of male circumcision (MC) with reduced HIV prevalence. He then performed meta-regression adjusting for location, risk and MC prevalence. When one or two of these adjustments in combination were applied MC appeared protective, but when all three were introduced the association remained significant in high-risk populations, but not in general populations within Africa with a hypothetical MC prevalence of <25% or elsewhere with hypothetical MC prevalence of <75%. However, many MC prevalence values given differed from those reported in references cited (including all US studies). This and other problems invalidate his adjustments for MC prevalence, undermining most of his meta-regression results. Meta-regression is a highly sophisticated statistical tool and is prone to error if not applied correctly. The study contained a high risk of bias arising from confounding. We also question his use of crude, rather than adjusted, odds ratios and his inclusion of unpublished data, so precluding replication by others. Flawed statistics, opaque presentation of results and inclusion of previously repudiated arguments downplaying a role for MC in HIV prevention programmes should lead readers to be sceptical of the findings and conclusions of Van Howe's study.


Assuntos
Circuncisão Masculina , Infecções por HIV/epidemiologia , África/epidemiologia , HIV , Humanos , Masculino , Análise de Regressão
6.
Gynecol Oncol ; 148(1): 118-125, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29153541

RESUMO

OBJECTIVE: The World Health Organization (WHO)'s cervical cancer screening guidelines for limited-resource settings recommend sequential screening followed by same-day treatment under a "screen-and-treat" approach. We aimed to (1) assess feasibility and clinical outcomes of screening HIV-positive and HIV-negative Cameroonian women by pairing visual inspection with acetic acid and Lugol's iodine enhanced by digital cervicography (VIA/VILI-DC) with careHPV, a high-risk human papillomavirus (HR-HPV) nucleic acid test designed for low-resource settings; and (2) determine persistence of HR-HPV infection after one-year follow-up to inform optimal screening, treatment, and follow-up algorithms. METHODS: We co-tested 913 previously unscreened women aged ≥30years and applied WHO-recommended treatment for all VIA/VILI-DC-positive women. Baseline prevalence of HR-HPV and HIV were 24% and 42%, respectively. RESULTS: On initial screen, 44 (5%) women were VIA/VILI-DC-positive, of whom 22 had HR-HPV infection, indicating 50% of women screened false-positive and would have been triaged for unnecessary same-day treatment. VIA/VILI-DC-positive women with HIV infection were three times more likely to be HR-HPV-positive than HIV-negative women (65% vs. 20%). All women positive for either VIA/VILI-DC or HR-HPV (n=245) were invited for repeat co-testing after one year, of which 136 (56%) returned for follow-up. Of 122 women who were HR-HPV-positive on initial screen, 60 (49%) re-tested negative, of whom 6 had received treatment after initial screen, indicating that 44% of initially HR-HPV-positive women spontaneously cleared infection after one year without treatment. Women with HIV were more likely to remain HR-HPV-positive on follow-up than HIV-negative women (61% vs. 22%, p<0.001). Treatment was offered to all VIA/VILI-DC positive women on initial screen, and to all women screening VIA/VILI-DC or HR-HPV positive on follow-up. CONCLUSIONS: We found careHPV co-testing with VIA/VILI-DC to be feasible and valuable in identifying false-positives, but careHPV screening-to-result time was too long to inform same-day treatment.


Assuntos
DNA Viral/genética , Infecções por HIV/patologia , Papillomaviridae/genética , Infecções por Papillomavirus/patologia , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/virologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Camarões/epidemiologia , Detecção Precoce de Câncer/métodos , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/virologia , Humanos , Pessoa de Meia-Idade , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/virologia , Neoplasias do Colo do Útero/patologia
7.
Health Policy Plan ; 32(10): 1407-1416, 2017 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-29029086

RESUMO

We estimate costs and their predictors for three HIV prevention interventions in Kenya: HIV testing and counselling (HTC), prevention of mother-to-child transmission (PMTCT) and voluntary medical male circumcision (VMMC). As part of the 'Optimizing the Response of Prevention: HIV Efficiency in Africa' (ORPHEA) project, we collected retrospective data from government and non-governmental health facilities for 2011-12. We used multi-stage sampling to determine a sample of health facilities by type, ownership, size and interventions offered totalling 144 sites in 78 health facilities in 33 districts across Kenya. Data sources included key informants, registers and time-motion observation methods. Total costs of production were computed using both quantity and unit price of each input. Average cost was estimated by dividing total cost per intervention by number of clients accessing the intervention. Multivariate regression methods were used to analyse predictors of log-transformed average costs. Average costs were $7 and $79 per HTC and PMTCT client tested, respectively; and $66 per VMMC procedure. Results show evidence of economies of scale for PMTCT and VMMC: increasing the number of clients per year by 100% was associated with cost reductions of 50% for PMTCT, and 45% for VMMC. Task shifting was associated with reduced costs for both PMTCT (59%) and VMMC (54%). Costs in hospitals were higher for PMTCT (56%) in comparison to non-hospitals. Facilities that performed testing based on risk factors as opposed to universal screening had higher HTC average costs (79%). Lower VMMC costs were associated with availability of male reproductive health services (59%) and presence of community advisory board (52%). Aside from increasing production scale, HIV prevention costs may be contained by using task shifting, non-hospital sites, service integration and community supervision.


Assuntos
Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Programas de Rastreamento/economia , Circuncisão Masculina/economia , Feminino , Instalações de Saúde/economia , Humanos , Transmissão Vertical de Doenças Infecciosas/economia , Quênia , Masculino , Estudos Retrospectivos
8.
Oncologist ; 22(7): 850-859, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28536303

RESUMO

BACKGROUND: Cervical cancer screening is one of the most effective cancer prevention strategies, but most women in Africa have never been screened. In 2007, the Cameroon Baptist Convention Health Services, a large faith-based health care system in Cameroon, initiated the Women's Health Program (WHP) to address this disparity. The WHP provides fee-for-service cervical cancer screening using visual inspection with acetic acid enhanced by digital cervicography (VIA-DC), prioritizing care for women living with HIV/AIDS. They also provide clinical breast examination, family planning (FP) services, and treatment for reproductive tract infection (RTI). Here, we document the strengths and challenges of the WHP screening program and the unique aspects of the WHP model, including a fee-for-service payment system and the provision of other women's health services. METHODS: We retrospectively reviewed WHP medical records from women who presented for cervical cancer screening from 2007-2014. RESULTS: In 8 years, WHP nurses screened 44,979 women for cervical cancer. The number of women screened increased nearly every year. The WHP is sustained primarily on fees-for-service, with external funding totaling about $20,000 annually. In 2014, of 12,191 women screened for cervical cancer, 99% received clinical breast exams, 19% received FP services, and 4.7% received treatment for RTIs. We document successes, challenges, solutions implemented, and recommendations for optimizing this screening model. CONCLUSION: The WHP's experience using a fee-for-service model for cervical cancer screening demonstrates that in Cameroon VIA-DC is acceptable, feasible, and scalable and can be nearly self-sustaining. Integrating other women's health services enabled women to address additional health care needs. IMPLICATION FOR PRACTICE: The Cameroon Baptist Convention Health Services Women's Health Program successfully implemented a nurse-led, fee-for-service cervical cancer screening program using visual inspection with acetic acid-enhanced by digital cervicography in the setting of a large faith-based health care system in Cameroon. It is potentially replicable in many African countries, where faith-based organizations provide a large portion of health care. The cost-recovery model and concept of offering multiple services in a single clinic rather than stand-alone "silo" cervical cancer screening could provide a model for other low-and-middle-income countries planning to roll out a new, or make an existing, cervical cancer screening services accessible, comprehensive, and sustainable.


Assuntos
Planos de Pagamento por Serviço Prestado , Programas de Rastreamento/economia , Neoplasias do Colo do Útero/prevenção & controle , Camarões , Colposcopia/métodos , Serviços de Saúde Comunitária , Feminino , Soropositividade para HIV , Humanos , Programas de Rastreamento/organização & administração , Programas de Rastreamento/estatística & dados numéricos , Neoplasias do Colo do Útero/diagnóstico
9.
Glob Public Health ; 12(10): 1315-1333, 2017 10.
Artigo em Inglês | MEDLINE | ID: mdl-26564989

RESUMO

An article by Darby disparaging male circumcision (MC) for syphilis prevention in Victorian times (1837-1901) and voluntary medical MC programs for HIV prevention in recent times ignores contemporary scientific evidence. It is one-sided and cites outlier studies as well as claims by MC opponents that support the author's thesis, but ignores high quality randomised controlled trials and meta-analyses. While we agree with Darby that risky behaviours contribute to syphilis and HIV epidemics, there is now compelling evidence that MC helps reduce both syphilis and HIV infections. Although some motivations for MC in Victorian times were misguided, others, such as protection against syphilis, penile cancer, phimosis, balanitis and poor hygiene have stood the test of time. In the absence of a cure or effective prophylactic vaccine for HIV, MC should help lower heterosexually acquired HIV, especially when coupled with other interventions such as condoms and behaviour. This should save lives, as well as reducing costs and suffering. In contrast to Darby, our evaluation of the evidence leads us to conclude that MC would likely have helped reduce syphilis in Victorian times and, in the current era, will help lower both syphilis and HIV, so improving global public health.


Assuntos
Circuncisão Masculina/história , Pesquisa , Sífilis/prevenção & controle , África Subsaariana , Infecções por HIV/etiologia , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , História do Século XIX , História do Século XX , Humanos , Masculino , Comportamento Sexual
10.
PLoS One ; 11(6): e0157319, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27280882

RESUMO

BACKGROUND: In 2007, the Cameroon Baptist Convention Health Services (CBCHS) implemented a screen-and-treat cervical cancer prevention program using visual inspection with acetic acid enhanced by digital cervicography (VIA-DC). METHODS: We retrospectively analyzed 46,048 medical records of women who received care through the CBCHS Women's Health Program from 2007 through 2014 to determine the prevalence and predictors of positive VIA-DC, rates of same day treatment, and cohort prevalence of invasive cervical cancer (ICC). RESULTS: Of the 44,979 women who were screened for cervical cancer, 9.0% were VIA-DC-positive, 66.8% were VIA-DC-negative, 22.0% were VIA-DC-inadequate (normal ectocervix, but portions of the transformation zone were obscured), and 2.2% were VIA-DC-uncertain (cervical abnormalities confounding VIA-DC interpretation). Risk factors significantly associated with VIA-DC-positive screen were HIV-positivity, young age at sexual debut, higher lifetime number of sexual partners, low education status and higher gravidity. In 2014, 31.1% of women eligible for cryotherapy underwent same day treatment. Among the 32,788 women screened from 2007 through 2013, 201 cases of ICC were identified corresponding to a cohort prevalence of 613 per 100,000. CONCLUSIONS: High rate of VIA-DC-positive screens suggests a significant burden of potential cervical cancer cases and highlights the need for expansion of cervical cancer screening and prevention throughout the 10 regions of Cameroon. VIA-DC-inadequate rates were also high, especially in older women, and additional screening methods are needed to confirm whether these results are truly negative. In comparison to similar screening programs in sub-Saharan Africa there was low utilization of same day cryotherapy treatment. Further studies are required to characterize possible program specific barriers to treatment, for example cultural demands, health system challenges and cost of procedure. The prevalence of ICC among women who presented for screening was high and requires further investigation.


Assuntos
Programas de Rastreamento , Programas Nacionais de Saúde , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/prevenção & controle , Adulto , Camarões/epidemiologia , Feminino , Humanos , Prevalência
11.
PLoS One ; 10(8): e0135563, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26266949

RESUMO

BACKGROUND: Vaccines against human papillomavirus (HPV) infection have the potential to reduce the burden of cervical cancer. School-based delivery of HPV vaccines is cost-effective and successful uptake depends on school teachers' knowledge and acceptability of the vaccine. The aim of this study is to assess primary school teachers' knowledge and acceptability of HPV vaccine and to explore facilitators and barriers of an ongoing Gavi Alliance-supported vaccination program in Kitui County, Kenya. METHODS: This was a cross-sectional, mixed methods study in Central Division of Kitui County where the Ministry of Health is offering the quadrivalent HPV vaccine to grade four girls. Data on primary school teachers' awareness, knowledge and acceptability of HPV vaccine as well as facilitators and barriers to the project was collected through self-administered questionnaires and two focus group discussions. RESULTS: 339 teachers (60% female) completed the survey (62% response rate) and 13 participated in 2 focus group discussions. Vaccine awareness among teachers was high (90%), the level of knowledge about HPV and cervical cancer among teachers was moderate (48%, SD = 10.9) and females scored higher than males (50% vs. 46%, p = 0.002). Most teachers (89%) would recommend the vaccine to their daughter or close relatives. Those who would recommend the vaccine had more knowledge than those who would not (p = <0.001). The main barriers were insufficient information about the vaccine, poor accessibility of schools, absenteeism of girls on vaccine days, and fear of side effects. CONCLUSIONS: Despite low to moderate levels of knowledge about HPV vaccine among school teachers, vaccine acceptability is high. Teachers with little knowledge on HPV vaccine are less likely to accept the vaccine than those who know more; this may affect uptake if not addressed. Empowering teachers to be vaccine champions in their community may be a feasible way of disseminating information about HPV vaccine and cervical cancer.


Assuntos
Docentes/estatística & dados numéricos , Vacinas contra Papillomavirus/uso terapêutico , Neoplasias do Colo do Útero/prevenção & controle , Adulto , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Quênia , Masculino , Inquéritos e Questionários , Neoplasias do Colo do Útero/imunologia
12.
Vaccine ; 32(35): 4399-4403, 2014 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-24968154

RESUMO

BACKGROUND: Cameroon has the highest age-standardized incidence rate of cervical cancer (30/100,000 women) in Central Africa. In 2010-2011, the Cameroon Baptist Convention Health Services (CBCHS) received donated human papillomavirus (HPV) vaccine, Gardasil, from Merck & Co. Inc. through Axios Healthcare Development to immunize 6400 girls aged 9-13 years. The aim was to inform the Cameroon Ministry of Health (MOH) of the acceptability, feasibility, and optimal delivery strategies for HPV vaccine. METHODS AND FINDINGS: Following approval by the MOH, CBCHS nurses educated girls, parents, and communities about HPV, cervical cancer, and HPV vaccine through multimedia coverage, brochures, posters, and presentations. Because educators were initially reluctant to allow immunization in schools, due to fear of adverse events, the nurses performed 40.7% of vaccinations in the clinics, 34.5% in community venues, and only 24.7% in schools. When no adverse events were reported, more schools and communities permitted HPV vaccine immunization on their premises. To recover administrative costs, CBCHS charged a fee of US$8 per 3-dose series only to those who were able to pay. Despite the fee, 84.6% of the 6,851 girls who received the first dose received all three doses. CONCLUSIONS AND LESSONS LEARNED: With adequate education of all stakeholders, HPV vaccination is acceptable and feasible in Cameroon. Following this demonstration project, in 2014 the Global Access to Vaccines and Immunization (GAVI) Alliance awarded the Cameroon MOH HPV vaccine at a price of US$4.50 per dose to immunize sixth grade girls and girls aged 10 years who are not in school in two districts of Cameroon.


Assuntos
Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/administração & dosagem , Vacinas contra Papillomavirus/imunologia , Vacinação/estatística & dados numéricos , Adolescente , Adulto , Camarões , Criança , Feminino , Educação em Saúde , Humanos , Infecções por Papillomavirus/imunologia , Gravidez , Adulto Jovem
13.
PLoS One ; 9(3): e90912, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24618636

RESUMO

OBJECTIVES: We assessed the knowledge and awareness of cervical cancer, HPV and HPV vaccine, and willingness and acceptability to vaccinate in sub-Saharan African (SSA) countries. We further identified countries that fulfill the two GAVI Alliance eligibility criteria to support nationwide HPV vaccination. METHODS: We conducted a systematic review of peer-reviewed studies on the knowledge and awareness of cervical cancer, HPV and HPV vaccine, and willingness and acceptability to vaccinate. Trends in Diphtheria-tetanus-pertussis (DTP3) vaccine coverage in SSA countries from 1990-2011 were extracted from the World Health Organization database. FINDINGS: The review revealed high levels of willingness and acceptability of HPV vaccine but low levels of knowledge and awareness of cervical cancer, HPV or HPV vaccine. We identified only six countries to have met the two GAVI Alliance requirements for supporting introduction of HPV vaccine: 1) the ability to deliver multi-dose vaccines for no less than 50% of the target vaccination cohort in an average size district, and 2) achieving over 70% coverage of DTP3 vaccine nationally. From 2008 through 2011 all SSA countries, with the exception of Mauritania and Nigeria, have reached or maintained DTP3 coverage at 70% or above. CONCLUSION: There is an urgent need for more education to inform the public about HPV, HPV vaccine, and cervical cancer, particularly to key demographics, (adolescents, parents and healthcare professionals), to leverage high levels of willingness and acceptability of HPV vaccine towards successful implementation of HPV vaccination programs. There is unpreparedness in most SSA countries to roll out national HPV vaccination as per the GAVI Alliance eligibility criteria for supporting introduction of the vaccine. In countries that have met 70% DTP3 coverage, pilot programs need to be rolled out to identify the best practice and strategies for delivering HPV vaccines to adolescents and also to qualify for GAVI Alliance support.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/imunologia , Aceitação pelo Paciente de Cuidados de Saúde , África Subsaariana/epidemiologia , Vacina contra Difteria, Tétano e Coqueluche/imunologia , Detecção Precoce de Câncer , Fatores Epidemiológicos , Feminino , Humanos , Infecções por Papillomavirus/complicações , Vacinas contra Papillomavirus/administração & dosagem , Vigilância em Saúde Pública , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/etiologia , Neoplasias do Colo do Útero/prevenção & controle
14.
BMC Health Serv Res ; 14: 599, 2014 Nov 29.
Artigo em Inglês | MEDLINE | ID: mdl-25927555

RESUMO

BACKGROUND: Scaling up services to achieve HIV targets will require that countries optimize the use of available funding. Robust unit cost estimates are essential for the better use of resources, and information on the heterogeneity in the unit cost of delivering HIV services across facilities - both within and across countries - is critical to identifying and addressing inefficiencies. There is limited information on the unit cost of HIV prevention services in sub-Saharan Africa and information on the heterogeneity within and across countries and determinants of this variation is even more scarce. The "Optimizing the Response in Prevention: HIV Efficiency in Africa" (ORPHEA) study aims to add to the empirical body of knowledge on the cost and technical efficiency of HIV prevention services that decision makers can use to inform policy and planning. METHODS/DESIGN: ORPHEA is a cross-sectional observational study conducted in 304 service delivery sites in Kenya, Rwanda, South Africa, and Zambia to assess the cost, cost structure, cost variability, and the determinants of efficiency for four HIV interventions: HIV testing and counselling (HTC), prevention of mother-to-child transmission (PMTCT), voluntary medical male circumcision (VMMC), and HIV prevention for sex workers. ORPHEA collected information at three levels (district, facility, and individual) on inputs to HIV prevention service production and their prices, outputs produced along the cascade of services, facility-level characteristics and contextual factors, district-level factors likely to influence the performance of facilities as well as the demand for HIV prevention services, and information on process quality for HTC, PMTCT, and VMMC services. DISCUSSION: ORPHEA is one of the most comprehensive studies on the cost and technical efficiency of HIV prevention interventions to date. The study applied a robust methodological design to collect comparable information to estimate the cost of HTC, PMTCT, VMMC, and sex worker prevention services in Kenya, Rwanda, South Africa, and Zambia, the level of efficiency in the current delivery of these services, and the key determinants of efficiency. The results of the study will be important to decision makers in the study countries as well as those in countries facing similar circumstances and contexts.


Assuntos
Infecções por HIV/prevenção & controle , Promoção da Saúde/economia , Síndrome da Imunodeficiência Adquirida , Adolescente , Adulto , Circuncisão Masculina/economia , Aconselhamento , Estudos Transversais , Feminino , Humanos , Quênia , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Ruanda , Profissionais do Sexo , África do Sul , Adulto Jovem , Zâmbia
15.
Int J Nurs Stud ; 50(10): 1399-406, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23395482

RESUMO

BACKGROUND: While it is known that sub-Saharan African countries face multiple obstacles such as cost in adopting vaccination against human papillomavirus (HPV), the crucial role nurses can play in implementing such programs has not been adequately examined. OBJECTIVES: To investigate the knowledge and awareness of HPV, primary cause of cervical cancer and HPV vaccine among nurses working at four Cameroon Baptist Convention Health Services facilities, and to explore what factors influence nurses' willingness to inform and recommend HPV vaccine to adolescents and parents attending clinics. DESIGN AND SETTING: A structured questionnaire survey was administered to a convenience sample of nursing staff working at the four health facilities. RESULTS: Of 192 eligible nurses 76 (39.6%) participated in the study. There were moderately low levels of knowledge about HPV infection and prevention of cervical cancer, but a moderately high level of knowledge about HPV vaccine. Although 90.8% acknowledged that cervical cancer is directly linked to HPV infection, nearly 32% failed to identify it as a sexually transmitted infection (STI), while 43.4% believed it is an uncommon infection. Willingness to recommend the HPV vaccine was moderate, with 69.7% intentionally initiating discussions with patients about the subject. The most important factors considered when deciding to recommend the vaccine included effectiveness (56.6%) and side effects/safety (11.8%). Cost was less of a concern (6.6%), likely due to the availability of donated vaccine. CONCLUSION: Despite high awareness about HPV, more education about the virus, cervical cancer and the vaccine are required to further increase nurses' willingness to recommend the vaccine and strengthen strategies for reaching adolescents through nurses in Cameroon.


Assuntos
Alphapapillomavirus/patogenicidade , Conscientização , Conhecimentos, Atitudes e Prática em Saúde , Vacinas contra Papillomavirus/administração & dosagem , Neoplasias do Colo do Útero/prevenção & controle , Alphapapillomavirus/isolamento & purificação , Camarões , Feminino , Vacina Quadrivalente Recombinante contra HPV tipos 6, 11, 16, 18 , Humanos , Neoplasias do Colo do Útero/virologia
16.
J Community Health ; 37(6): 1127-35, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22426995

RESUMO

The purpose of this study is to assess awareness, knowledge and beliefs about HPV, cervical cancer HPV vaccine and willingness to vaccinate among adolescent females aged 12-26 years at clinics and schools in the North West Region of Cameroon where the Cameroon Baptist Convention Health Services (CBCHS) conducted a sensitization and education campaign. A questionnaire survey was administered among female adolescents in schools and clinics. Descriptive statistics including frequencies, percentages and proportions were generated for independent variables and bivariate analyses (Chi square test) were used to assess the relationship between independent and outcome variables. Data were analyzed using SAS Version 9.2. Out of a sample of 650 adolescent girls 553 willingly participated in this anonymous survey. Awareness of HPV (86.8%), cervical cancer (82.3%), and prevention of HPV infections through vaccination (75.9%) was significantly higher than in previous studies conducted in Cameroon and other developing countries. Higher perceptions of risk were associated with being sexually active (p = 0.0013), age (p = 0.0031) and level of education (p = 0.0274). Age and educational level were associated with HPV knowledge (p = 0.007 and p = 0.0008), respectively. The mean level of interest in HPV vaccination was 4.0 (SD = 1.27), which is above the mean. Our data indicate high awareness about HPV, cervical cancer and HPV vaccine among adolescents, and interest in receiving the vaccine and learning about the disease. CBCHS' community education strategy effectively raised acceptability and generated demand for HPV vaccine, making it a potential model for HPV immunization in Cameroon and other developing countries.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/administração & dosagem , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Estudantes/psicologia , Neoplasias do Colo do Útero/prevenção & controle , Adolescente , Adulto , Camarões , Criança , Estudos Transversais , Feminino , Humanos , Instituições Acadêmicas , Estudantes/estatística & dados numéricos , Adulto Jovem
17.
BMC Pediatr ; 12: 20, 2012 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-22373281

RESUMO

BACKGROUND: Circumcision is a common procedure, but regional and societal attitudes differ on whether there is a need for a male to be circumcised and, if so, at what age. This is an important issue for many parents, but also pediatricians, other doctors, policy makers, public health authorities, medical bodies, and males themselves. DISCUSSION: We show here that infancy is an optimal time for clinical circumcision because an infant's low mobility facilitates the use of local anesthesia, sutures are not required, healing is quick, cosmetic outcome is usually excellent, costs are minimal, and complications are uncommon. The benefits of infant circumcision include prevention of urinary tract infections (a cause of renal scarring), reduction in risk of inflammatory foreskin conditions such as balanoposthitis, foreskin injuries, phimosis and paraphimosis. When the boy later becomes sexually active he has substantial protection against risk of HIV and other viral sexually transmitted infections such as genital herpes and oncogenic human papillomavirus, as well as penile cancer. The risk of cervical cancer in his female partner(s) is also reduced. Circumcision in adolescence or adulthood may evoke a fear of pain, penile damage or reduced sexual pleasure, even though unfounded. Time off work or school will be needed, cost is much greater, as are risks of complications, healing is slower, and stitches or tissue glue must be used. SUMMARY: Infant circumcision is safe, simple, convenient and cost-effective. The available evidence strongly supports infancy as the optimal time for circumcision.


Assuntos
Circuncisão Masculina/efeitos adversos , Doenças do Pênis/prevenção & controle , Infecções Sexualmente Transmissíveis/prevenção & controle , Infecções Urinárias/prevenção & controle , Adolescente , Adulto , Fatores Etários , Circuncisão Masculina/economia , Cultura , Humanos , Lactente , Masculino , Doenças do Pênis/complicações , Medição de Risco , Infecções Sexualmente Transmissíveis/complicações , Infecções Urinárias/complicações
18.
AIDS Care ; 24(12): 1565-75, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22452415

RESUMO

A potential impediment to evidence-based policy development on medical male circumcision (MC) for HIV prevention in all countries worldwide is the uncritical acceptance by some of arguments used by opponents of this procedure. Here we evaluate recent opinion-pieces of 13 individuals opposed to MC. We find that these statements misrepresent good studies, selectively cite references, some containing fallacious information, and draw erroneous conclusions. In marked contrast, the scientific evidence shows MC to be a simple, low-risk procedure with very little or no adverse long-term effect on sexual function, sensitivity, sensation during arousal or overall satisfaction. Unscientific arguments have been recently used to drive ballot measures aimed at banning MC of minors in the USA, eliminate insurance coverage for medical MC for low-income families, and threaten large fines and incarceration for health care providers. Medical MC is a preventative health measure akin to immunisation, given its protective effect against HIV infection, genital cancers and various other conditions. Protection afforded by neonatal MC against a diversity of common medical conditions starts in infancy with urinary tract infections and extends throughout life. Besides protection in adulthood against acquiring HIV, MC also reduces morbidity and mortality from multiple other sexually transmitted infections (STIs) and genital cancers in men and their female sexual partners. It is estimated that over their lifetime one-third of uncircumcised males will suffer at least one foreskin-related medical condition. The scientific evidence indicates that medical MC is safe and effective. Its favourable risk/benefit ratio and cost/benefit support the advantages of medical MC.


Assuntos
Circuncisão Masculina , Dissidências e Disputas , Infecções por HIV/prevenção & controle , Infecções Sexualmente Transmissíveis/prevenção & controle , Adulto , Países Desenvolvidos , Infecções por HIV/etiologia , Conhecimentos, Atitudes e Prática em Saúde , Pessoal de Saúde , Política de Saúde , Humanos , Masculino , Saúde Pública
19.
J Community Health ; 37(5): 917-26, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22302651

RESUMO

In 2010, the Cameroon Baptist Convention Health Services (CBCHS) received a donation of HPV vaccine (Gardasil®) to immunize girls of ages 9-13 years in the North West Region of Cameroon. We evaluated the effectiveness of the CBCHS campaign program in sensitizing parents/guardians to encourage HPV vaccine uptake, identified factors that influence parents' decisions to vaccinate girls, and examined the uptake of cervical cancer screening among mothers. We conducted a cross-sectional survey in four healthcare facilities run by CBCHS, churches and other social settings. A total of 350 questionnaires were distributed and 317 were used for the analysis. There were high levels of awareness about cervical cancer, HPV and HPV vaccine. 75.5% understood HPV is sexually transmitted and 90.3% were aware of the use of vaccine as a preventive measure. Effectiveness of the vaccine (31.8%) and side effects/safety (18.4%) were the major barriers for parents to vaccinate their daughters. Bivariate analysis further revealed that the level of education (p = 0.0006), income level (p = 0.0044) and perceived risks (p = 0.0044) are additional factors influencing parents' decisions to vaccinate girls. 35.3% of women had sought a cervical cancer screening, significantly higher than the general estimated rate of screening (<10%) in other parts of Cameroon and sub-Saharan Africa. These results support the viability of a community-tailored sensitization strategy to increase awareness among the targeted audience of parents/guardians, who are critical decision-makers for vaccine delivery to children.


Assuntos
Detecção Precoce de Câncer/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Promoção da Saúde/métodos , Infecções por Papillomavirus/prevenção & controle , Vacinas contra Papillomavirus/administração & dosagem , Pais/psicologia , Neoplasias do Colo do Útero/prevenção & controle , Adolescente , Adulto , Idoso , Camarões , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Relações Pais-Filho , Avaliação de Programas e Projetos de Saúde , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA