Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa

Abstract Background Identifying successful strategies to improve participant retention in longitudinal studies remains a challenge. In this study we evaluated whether non-traditional fieldworker shifts (after hours during the week and weekends) enhanced participant retention when compared to retenti...

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Autores principales:	N. F. Bell-Mandla, R. Sloot, G. Maarman, S. Griffith, A. Moore, S. Floyd, R. Hayes, S. Fidler, H. Ayles, P. Bock, on behalf of the HPTN 071 (PopART) study team
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Retention Longitudinal studies Population cohort Retention strategies Household visits Retention methods Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/bee62039dbdb46989781259d6720c0d4
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spelling	oai:doaj.org-article:bee62039dbdb46989781259d6720c0d42021-11-14T12:39:33ZImproving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa10.1186/s12874-021-01415-61471-2288https://doaj.org/article/bee62039dbdb46989781259d6720c0d42021-11-01T00:00:00Zhttps://doi.org/10.1186/s12874-021-01415-6https://doaj.org/toc/1471-2288Abstract Background Identifying successful strategies to improve participant retention in longitudinal studies remains a challenge. In this study we evaluated whether non-traditional fieldworker shifts (after hours during the week and weekends) enhanced participant retention when compared to retention during traditional weekday shifts in the HPTN 071 (PopART) population cohort (PC). Methods HPTN 071 (PopART) PC participants were recruited and followed up in their homes on an annual basis by research fieldworkers over a 3-4 year period. The average number of successful follow-up visits, where a PC participant was found and retained in the study, was calculated for each of 3 visit schedules (early weekday shift, late weekday shift, and Saturday shift), and standardized to account for variation in fieldwork shift duration. We used one-way univariate analysis of variance (ANOVA) to describe differences in mean-successful visits and 95% confidence intervals between the shift types. Results Data on 16 651 successful visits were included. Successful visit rates were higher when conducting Saturday visits (14.0; 95% CI: 11.3-16.6) compared to both regular (4.5; 95% CI: 3.7-5.3) and late weekday shifts (5.3; 95% CI: 4.7-5.8) overall and in all subgroup analyses (P<0.001). The successful visit rate was higher amongst women than men were during all shift types (3.2 vs. 1.3, p<0.001). Successful visit rates by shift type did not differ significantly by age, over time, by PC round or by community triplet. Conclusion The number of people living with HIV continues to increase annually. High quality evidence from longitudinal studies remains critical for evaluating HIV prevention and treatment strategies. This study showed a significant benefit on participant retention through introduction of Saturday shifts for home visits and these data can make an important contribution to the emerging body of evidence for improving retention in longitudinal research. Trial registration PopART was approved by the Stellenbosch University Health Research Ethics Committees (N12/11/074), London School of Hygiene and Tropical Medicine (6326) ethics committee and the Division of AIDS (DAIDS) (Protocol ID 11865). PopART was registered with ClinicalTrials.gov (registration number NCT01900977 ).N. F. Bell-MandlaR. SlootG. MaarmanS. GriffithA. MooreS. FloydR. HayesS. FidlerH. AylesP. Bockon behalf of the HPTN 071 (PopART) study teamBMCarticleRetentionLongitudinal studiesPopulation cohortRetention strategiesHousehold visitsRetention methodsMedicine (General)R5-920ENBMC Medical Research Methodology, Vol 21, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Retention Longitudinal studies Population cohort Retention strategies Household visits Retention methods Medicine (General) R5-920
spellingShingle	Retention Longitudinal studies Population cohort Retention strategies Household visits Retention methods Medicine (General) R5-920 N. F. Bell-Mandla R. Sloot G. Maarman S. Griffith A. Moore S. Floyd R. Hayes S. Fidler H. Ayles P. Bock on behalf of the HPTN 071 (PopART) study team Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa
description	Abstract Background Identifying successful strategies to improve participant retention in longitudinal studies remains a challenge. In this study we evaluated whether non-traditional fieldworker shifts (after hours during the week and weekends) enhanced participant retention when compared to retention during traditional weekday shifts in the HPTN 071 (PopART) population cohort (PC). Methods HPTN 071 (PopART) PC participants were recruited and followed up in their homes on an annual basis by research fieldworkers over a 3-4 year period. The average number of successful follow-up visits, where a PC participant was found and retained in the study, was calculated for each of 3 visit schedules (early weekday shift, late weekday shift, and Saturday shift), and standardized to account for variation in fieldwork shift duration. We used one-way univariate analysis of variance (ANOVA) to describe differences in mean-successful visits and 95% confidence intervals between the shift types. Results Data on 16 651 successful visits were included. Successful visit rates were higher when conducting Saturday visits (14.0; 95% CI: 11.3-16.6) compared to both regular (4.5; 95% CI: 3.7-5.3) and late weekday shifts (5.3; 95% CI: 4.7-5.8) overall and in all subgroup analyses (P<0.001). The successful visit rate was higher amongst women than men were during all shift types (3.2 vs. 1.3, p<0.001). Successful visit rates by shift type did not differ significantly by age, over time, by PC round or by community triplet. Conclusion The number of people living with HIV continues to increase annually. High quality evidence from longitudinal studies remains critical for evaluating HIV prevention and treatment strategies. This study showed a significant benefit on participant retention through introduction of Saturday shifts for home visits and these data can make an important contribution to the emerging body of evidence for improving retention in longitudinal research. Trial registration PopART was approved by the Stellenbosch University Health Research Ethics Committees (N12/11/074), London School of Hygiene and Tropical Medicine (6326) ethics committee and the Division of AIDS (DAIDS) (Protocol ID 11865). PopART was registered with ClinicalTrials.gov (registration number NCT01900977 ).
format	article
author	N. F. Bell-Mandla R. Sloot G. Maarman S. Griffith A. Moore S. Floyd R. Hayes S. Fidler H. Ayles P. Bock on behalf of the HPTN 071 (PopART) study team
author_facet	N. F. Bell-Mandla R. Sloot G. Maarman S. Griffith A. Moore S. Floyd R. Hayes S. Fidler H. Ayles P. Bock on behalf of the HPTN 071 (PopART) study team
author_sort	N. F. Bell-Mandla
title	Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa
title_short	Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa
title_full	Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa
title_fullStr	Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa
title_full_unstemmed	Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa
title_sort	improving retention of community-recruited participants in hiv prevention research through saturday household visits; findings from the hptn 071 (popart) study in south africa
publisher	BMC
publishDate	2021
url	https://doaj.org/article/bee62039dbdb46989781259d6720c0d4
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Improving retention of community-recruited participants in HIV prevention research through Saturday household visits; findings from the HPTN 071 (PopART) study in South Africa

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