Godfrey Woelk

Dr. Godfrey Woelk

Global Implementation Research Elizabeth Glaser Pediatric AIDS Foundation, 1140 Connecticut Avenue NW, Suite 200, Washington, DC 20036, USA
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Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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5 October 2017 in Reproductive Health
Verified
Journal Article
Open access
PDF file
LKLeila Katirayi
Leila Katirayi
ACAddmore Chadambuka
Addmore Chadambuka
AMAuxilia Muchedzi
Auxilia Muchedzi
AAAllan Ahimbisibwe
Allan Ahimbisibwe
RMReuben Musarandega
Reuben Musarandega
KMKaren Marie Moland
Karen Marie Moland
With the introduction of 2016 World Health Organization guidelines recommending universal antiretroviral therapy (ART), there has been increased recognition of the lack of men engaging in HIV testing and treatment. Studies in sub-Saharan Africa indicate there have been challenges engaging men in HIV testing and HIV-positive men into treatment. This qualitative study explored women’s perspective of their male partner’s attitudes towards HIV and ART and how it shapes woman’s experience with ART. Data were collected through in-depth interviews and focus group discussions with HIV-positive pregnant and postpartum women on Option B+ and health care workers in Malawi and Zimbabwe. In Malawi, 19 in-depth interviews and 12 focus group discussions were conducted from September–December 2013. In Zimbabwe, 15 in-depth interviews and 21 focus-group discussions were conducted from July 2014–March 2014. The findings highlighted that many men discourage their partners from initiating or adhering to ART. One of the main findings indicated that despite the many advancements in HIV care and ART regimens, there are still many lingering negative beliefs about HIV and ART from the earlier days of the epidemic. In addition to existing theories explaining men’s resistance to/absence in HIV testing and treatment as a threat to their masculinity or because of female-focused health facilities, this paper argues that men’s aversion to HIV may be a result of old beliefs about HIV and ART which have not been addressed. Due to lack of accurate and up to date information about HIV and ART, many men discourage their female partners from initiating and adhering to ART. The effect of lingering and outdated beliefs about HIV and ART needs to be addressed through strengthened communication about developments in HIV care and treatment. Universal ART offers a unique opportunity to curb the epidemic, but successful implementation of these new guidelines is dependent on ART initiation and adherence by both women and men. Strengthening men’s understanding about HIV and ART will greatly enhance women’s ability to initiate and adhere to ART and improve men’s health.

20 July 2016 in Journal of the International AIDS Society
Verified
Journal Article
Open access
PDF file
GWGodfrey Woelk
Godfrey Woelk
DNDieudonne Ndatimana
Dieudonne Ndatimana
SBSally Behan
Sally Behan
MMMartha Mukaminega
Martha Mukaminega
ENEpiphanie Nyirabahizi
Epiphanie Nyirabahizi
BPB Ryan Phelps
B Ryan Phelps
Objectives: Investigate levels of retention at specified time periods along the prevention of mother‐to‐child transmission (PMTCT) cascade among mother‐infant pairs as well as individual‐ and facility‐level factors associated with retention.Methods: A retrospective cohort of HIV‐positive pregnant women and their infants attending five health centres from November 2010 to February 2012 in the Option B programme in Rwanda was established. Data were collected from several health registers and patient follow‐up files. Additionally, informant interviews were conducted to ascertain health facility characteristics. Generalized estimating equation methods and modelling were utilized to estimate the number of mothers attending each antenatal care visit and assess factors associated with retention.Results: Data from 457 pregnant women and 462 infants were collected at five different health centres (three urban and two rural facilities). Retention at 30 days after registration and retention at 6 weeks, 3, 6, 9 and 12 months post‐delivery were analyzed. Based on an analytical sample of 348, we found that 58% of women and 81% of infants were retained in care within the same health facility at 12 months post‐delivery, respectively. However, for mother‐infant paired mothers, retention at 12 months was 74% and 79% for their infants. Loss to facility occurred early, with 26% to 33% being lost within 30 days post‐registration. In a multivariable model retention was associated with being married, adjusted relative risk (ARR): 1.26, (95% confidence intervals: 1.11, 1.43); antiretroviral therapy eligible, ARR: 1.39, (1.12, 1.73) and CD4 count per 50 mm3, ARR: 1.02, (1.01, 1.03).Conclusions: These findings demonstrate varying retention levels among mother‐infant pairs along the PMTCT cascade in addition to potential determinants of retention to such programmes. Unmarried, apparently healthy, HIV‐positive pregnant women need additional support for programme retention. With the significantly increased workload resulting from lifelong antiretroviral treatment for all HIV‐positive pregnant women, strategies need to be developed to identify, provide support and trace these women at risk of loss to follow‐up. This study provides further evidence for the need for such a targeted supportive approach.

1 April 2014 in Cancer Epidemiology
Verified
Journal Article
Closed access
KSKristen Stolka
Kristen Stolka
PNPaul Ndom
Paul Ndom
JHJennifer Hemingway-Foday
Jennifer Hemingway-Foday
JIJeniffer Iriondo-Perez
Jeniffer Iriondo-Perez
WMWendell Miley
Wendell Miley
JSJennifer S. Smith
Jennifer S. Smith

25 July 2017 in BMC Public Health
Verified
Journal Article
Open access
PDF file
ACAddmore Chadambuka
Addmore Chadambuka
LKLeila Katirayi
Leila Katirayi
AMAuxilia Muchedzi
Auxilia Muchedzi
ETEsther Tumbare
Esther Tumbare
RMReuben Musarandega
Reuben Musarandega
GWGodfrey Woelk
Godfrey Woelk
Zimbabwe’s Ministry of Health and Child Care (MOHCC) adopted 2013 World Health Organization (WHO) prevention of mother-to-child HIV transmission (PMTCT) guidelines recommending initiation of HIV-positive pregnant and breastfeeding women (PPBW) on lifelong antiretroviral treatment (ART) irrespective of clinical stage (Option B+). Option B+ was officially launched in Zimbabwe in November 2013; however the acceptability of life-long ART and its potential uptake among women was not known. A qualitative study was conducted at selected sites in Harare (urban) and Zvimba (rural) to explore Option B+ acceptability; barriers, and facilitators to ART adherence and service uptake. In-depth interviews (IDIs), focus group discussions (FGDs) and key informant interviews (KIIs) were conducted with PPBW, healthcare providers, and community members. All interviews were audio-recorded, transcribed, and translated; data were coded and analyzed in MaxQDA v10. Forty-three IDIs, 22 FGDs, and five KIIs were conducted. The majority of women accepted lifelong ART. There was however, a fear of commitment to taking lifelong medication because they were afraid of defaulting, especially after cessation of breastfeeding. There was confusion around dosage; and fear of side effects, not having enough food to take drugs, and the lack of opportunities to ask questions in counseling. Participants reported the need for strengthening community sensitization for Option B+. Facilitators included receiving a simplified pill regimen; ability to continue breastfeeding beyond 6 months like HIV-negative women; and partner, community and health worker support. Barriers included distance of health facility, non-disclosure of HIV status, poor male partner support and knowing someone who had negative experience on ART. This study found that Option B+ is generally accepted among PPBW as a means to strengthen their health and protect their babies. Consistent with previous literature, this study demonstrated the importance of male partner and community support in satisfactory adherence to ART and enhancing counseling techniques. Strengthening community sensitization and male knowledge is critical to encourage women to disclose their HIV status and ensure successful adherence to ART. Targeting and engaging partners of women will remain key determinants to women’s acceptance and adherence on ART under Option B+.

2 March 2023 in PLOS Global Public Health
Verified
Journal Article
Open access
PDF file
RMRose Masaba
Rose Masaba
GWGodfrey Woelk
Godfrey Woelk
SSStephen Siamba
Stephen Siamba
JNJames Ndimbii
James Ndimbii
MOMillicent Ouma
Millicent Ouma
GOGordon Okomo
Gordon Okomo
Despite large numbers of patients accessing antiretroviral treatment (ART) in Kenya, few studies have explored factors associated with virologic failure in Western Kenya, specifically. We undertook a study in Homa Bay County, Kenya to assess the extent of virologic treatment failure and factors associated with it. This was an observational retrospective study conducted from September 2020 to January 2021. Data were abstracted from the records of patients who had been on ART for at least six months at the time of data collection after systematic sampling stratified by age group at ART initiation (0–14 and 15+ years), using probability proportion to the numbers of patients attending the facility. Confirmed viral treatment failure was defined as viral load ≥1000 copies/ml based on two consecutive viral load measurements after at least three months of enhanced adherence counseling. Data were analyzed using descriptive statistics and Cox regression modeling. Of the 2,007 patients sampled, 160 (8.0%) had confirmed virologic treatment failure. Significantly higher virologic treatment failure rates were identified among male patients 78/830 (9.4%) and children 115/782 (14.7%). Factors associated with virologic treatment failure (VTF), were age 0–14 years, adjusted hazard ratio (AHR) 4.42, (95% Confidence Interval [CI], 3.12, 6.32), experience of treatment side effects AHD: 2.43, (95% CI, 1.76, 3.37), attending level 2/3 health facility, AHR: 1.87, (95% CI: 1.29, 2,72), and history of opportunistic infections (OIs), AHR: 1.81, (95% CI, 1.76, 3.37). Children, attendees of level 2/3 health facilities, patients with a history of OIs, and those experiencing treatment side-effects are at risk of VTF. Increased focus on children and adolescents on screening for drug resistance, administration of and adherence to medication, and on effective information and education on side-effects is critical. Additionally, there is need for increased training and support for health care workers at primary level care facilities.

16 February 2016 in Trials
Verified
Journal Article
Open access
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TGthe Project ACCLAIM Study Group
the Project ACCLAIM Study Group
GWGodfrey Woelk
Godfrey Woelk
MKMary Pat Kieffer
Mary Pat Kieffer
DWDamilola Walker
Damilola Walker
DMDaphne Mpofu
Daphne Mpofu
RMRhoderick Machekano
Rhoderick Machekano
Efforts to scale up and improve programs for prevention of mother-to-child transmission of HIV (PMTCT) have focused primarily at the health facility level, and limited attention has been paid to defining an effective set of community interventions to improve demand and uptake of services and retention. Many barriers to PMTCT are also barriers to pregnancy, childbirth, and postnatal care faced by mothers regardless of HIV status. Demand for maternal and child health (MCH) and PMTCT services can be limited by critical social, cultural, and structural barriers. Yet, rigorous evaluation has shown limited evidence of effectiveness of multilevel community-wide interventions aimed at improving MCH and HIV outcomes for pregnant women living with HIV. We propose to assess the effect of a package of multilevel community interventions: a social learning and action component, community dialogues, and peer-led discussion groups, on the demand for, uptake of, and retention of HIV positive pregnant/postpartum women in MCH/PMTCT services. This study will undertake a three-arm randomized trial in Swaziland, Uganda, and Zimbabwe. Districts/regions (n = 9) with 45 PMTCT-implementing health facilities and their catchment areas (populations 7,300–27,500) will be randomly allocated to three intervention arms: 1) community leader engagement, 2) community leader engagement with community days, or 3) community leader engagement with community days and male and female community peer groups. The primary study outcome is HIV exposed infants (HEIs) returning to the health facility within 2 months for early infant diagnosis (EID) of HIV. Secondary study outcomes include gestational age of women attending for first antenatal care, male partners tested for HIV, and HEIs receiving nevirapine prophylaxis at birth. Changes in community knowledge, attitudes, practices, and beliefs on MCH/PMTCT will be assessed through household surveys. Implementation of the protocol necessitated changes in the original study design. We purposively selected facilities in the districts/regions though originally the study clusters were to be randomly selected. Lifelong antiretroviral therapy for all HIV positive pregnant and lactating women, Option B+, was implemented in the three countries during the study period, with the potential for a differential impact by study arm. Implementation however, was rapidly done across the districts/regions, so that there is unlikely be this potential confounding. We developed a system of monitoring and documentation of potential confounding activities or actions, and these data will be incorporated into analyses at the conclusion of the project. Strengthens of the study are that it tests multilevel interventions, utilizes program as well as study specific and individual data, and it is conducted under “real conditions” leading to more robust findings. Limitations of the protocol include the lack of a true control arm and inadequate control for the potential effect of Option B+, such as the intensification of messages as the importance of early ANC and male partner testing. ClinicalTrials.gov (study ID: NCT01971710 ) Protocol version 5, 30 July 2013, registered 13 August 2013.