BACKGROUND: Client trust in community health workers (CHWs) is integral for improving quality and equity of community health systems globally. Despite its recognized conceptual and pragmatic importance across health areas, there are no quantitative measures of trust in the context of community health services. In this multi-country study, we aimed to develop and validate a scale that assesses trust in CHWs. METHODS: To develop the scale, we used a consultative process to conceptualize and adapt items and domains from prior literature to the CHW context. Content validity and comprehension of scale items were validated through 10 focus group discussions with 75 community members in Haiti, and Kenya. We then conducted 1939 surveys with clients who interacted with CHWs recently in Bangladesh (n = 1017), Haiti (n = 616), and Kenya (n = 306). To analyze the 15 candidate scale items we conducted a split sample exploratory/confirmatory factor analysis (EFA/CFA), and then assessed internal consistency reliability of resulting set of items. Finally, we assessed convergent validity via multivariable models examining associations between final scale scores with theoretically related constructs. RESULTS: Factor analyses resulted in a 10-item Trust in CHWs Scale with two factors (sub-scales): Health care competence (5 items) and Respectful communication (5 items). The qualitative data also underscored these two sub-domains. The full scale had good internal consistency reliability in Bangladesh, Haiti and Kenya (alphas 0.87, 0.86, and 0.92, respectively; all alphas for subscales were also > 0.7, most > 0.8). Greater scores on Trust in CHWs were positively associated with increased client empowerment, familiarity with CHWs, satisfaction with recent client-CHW interaction, and positive influence of CHW on client empowerment. Scale scores were not influenced by the age, sex, parity, education, and wealth quintiles in across countries and may be affected by contextual factors. CONCLUSIONS: The Trust in CHWs Scale, which includes Health care competence and Respectful communication sub-scales, is the first such scale developed and validated globally. Our findings suggest this 10-item scale is a reliable and valid tool for quantifying clients' trust in CHWs, with potential utility for tracking and improving CHW and health systems performance over time.
BACKGROUND: Client trust in community health workers (CHWs) is integral for improving quality and equity of community health systems globally. Despite its recognized conceptual and pragmatic importance across health areas, there are no quantitative measures of trust in the context of community health services. In this multi-country study, we aimed to develop and validate a scale that assesses trust in CHWs. METHODS: To develop the scale, we used a consultative process to conceptualize and adapt items and domains from prior literature to the CHW context. Content validity and comprehension of scale items were validated through 10 focus group discussions with 75 community members in Haiti, and Kenya. We then conducted 1939 surveys with clients who interacted with CHWs recently in Bangladesh (n = 1017), Haiti (n = 616), and Kenya (n = 306). To analyze the 15 candidate scale items we conducted a split sample exploratory/confirmatory factor analysis (EFA/CFA), and then assessed internal consistency reliability of resulting set of items. Finally, we assessed convergent validity via multivariable models examining associations between final scale scores with theoretically related constructs. RESULTS: Factor analyses resulted in a 10-item Trust in CHWs Scale with two factors (sub-scales): Health care competence (5 items) and Respectful communication (5 items). The qualitative data also underscored these two sub-domains. The full scale had good internal consistency reliability in Bangladesh, Haiti and Kenya (alphas 0.87, 0.86, and 0.92, respectively; all alphas for subscales were also > 0.7, most > 0.8). Greater scores on Trust in CHWs were positively associated with increased client empowerment, familiarity with CHWs, satisfaction with recent client-CHW interaction, and positive influence of CHW on client empowerment. Scale scores were not influenced by the age, sex, parity, education, and wealth quintiles in across countries and may be affected by contextual factors. CONCLUSIONS: The Trust in CHWs Scale, which includes Health care competence and Respectful communication sub-scales, is the first such scale developed and validated globally. Our findings suggest this 10-item scale is a reliable and valid tool for quantifying clients' trust in CHWs, with potential utility for tracking and improving CHW and health systems performance over time.
Authors: Margaret E Kruk; Anna D Gage; Catherine Arsenault; Keely Jordan; Hannah H Leslie; Sanam Roder-DeWan; Olusoji Adeyi; Pierre Barker; Bernadette Daelmans; Svetlana V Doubova; Mike English; Ezequiel García-Elorrio; Frederico Guanais; Oye Gureje; Lisa R Hirschhorn; Lixin Jiang; Edward Kelley; Ephrem Tekle Lemango; Jerker Liljestrand; Address Malata; Tanya Marchant; Malebona Precious Matsoso; John G Meara; Manoj Mohanan; Youssoupha Ndiaye; Ole F Norheim; K Srinath Reddy; Alexander K Rowe; Joshua A Salomon; Gagan Thapa; Nana A Y Twum-Danso; Muhammad Pate Journal: Lancet Glob Health Date: 2018-09-05 Impact factor: 26.763
Authors: Smisha Agarwal; Pooja Sripad; Caroline Johnson; Karen Kirk; Ben Bellows; Joseph Ana; Vince Blaser; Meghan Bruce Kumar; Kathleen Buchholz; Alain Casseus; Nan Chen; Hannah Sarah Faich Dini; Rachel Hoy Deussom; David Jacobstein; Richard Kintu; Nazo Kureshy; Lory Meoli; Lilian Otiso; Neil Pakenham-Walsh; Jérôme Pfaffmann Zambruni; Mallika Raghavan; Ryan Schwarz; John Townsend; Brittney Varpilah; William Weiss; Charlotte E Warren Journal: Hum Resour Health Date: 2019-11-20