TY - JOUR
T1 - Exploring the effect of implementation and context on a stepped-wedge randomised controlled trial of a vital sign triage device in routine maternity care in low-resource settings
AU - Vousden, Nicola
AU - Lawley, Elodie
AU - Seed, Paul T.
AU - Gidiri, Muchabayiwa Francis
AU - Charantimath, Umesh
AU - Makonyola, Grace
AU - Brown, Adrian
AU - Yadeta, Lomi
AU - Best, Rebecca
AU - Chinkoyo, Sebastian
AU - Vwalika, Bellington
AU - Nakimuli, Annettee
AU - Ditai, James
AU - Greene, Grace
AU - Chappell, Lucy C.
AU - Sandall, Jane
AU - Shennan, Andrew H.
AU - Bukani, Doreen
AU - Toussaint, Paul
AU - Vixama, Adeline
AU - Hill, Carywyn
AU - Nakirijja, Emily
AU - Birungi, Doreen
AU - Kalyowa, Noela
AU - Namakuli, Dorothy
AU - Byamugisha, Josaphat
AU - Odeke, Nathan Mackayi
AU - Wandabwa, Julius
AU - Momodou, Fatmata
AU - Sesay, Margaret
AU - Sandi, Patricia
AU - Conteh, Jeneba
AU - Kamara, Jesse
AU - Clarke, Matthew
AU - Miti, Josephine
AU - Chima, Martina
AU - Kopeka, Mercy
AU - Jere, Christine
AU - Musonda, Thokozile
AU - Mambo, Violet
AU - Guchale, Yonas
AU - Surur, Feiruz
AU - Mungarwadi, Geetanjali M.
AU - Mastiholi, Sphoorthi S.
AU - Karadiguddi, Chandrappa C.
AU - Hezelgrave, Natasha
AU - Duhig, Kate E.
AU - Kachinjika, Monice
AU - Bellad, Mrutyunjaya
AU - Makwakwa, Jane
PY - 2019/4/18
Y1 - 2019/4/18
N2 - Background: Interventions aimed at reducing maternal mortality are increasingly complex. Understanding how complex interventions are delivered, to whom, and how they work is key in ensuring their rapid scale-up. We delivered a vital signs triage intervention into routine maternity care in eight low- and middle-income countries with the aim of reducing a composite outcome of morbidity and mortality. This was a pragmatic, hybrid effectiveness-implementation stepped-wedge randomised controlled trial. In this study, we present the results of the mixed-methods process evaluation. The aim was to describe implementation and local context and integrate results to determine whether differences in the effect of the intervention across sites could be explained. Methods: The duration and content of implementation, uptake of the intervention and its impact on clinical management were recorded. These were integrated with interviews (n = 36) and focus groups (n = 19) at 3 months and 6-9 months after implementation. In order to determine the effect of implementation on effectiveness, measures were ranked and averaged across implementation domains to create a composite implementation strength score and then correlated with the primary outcome. Results: Overall, 61.1% (n = 2747) of health care providers were trained in the intervention (range 16.5% to 89.2%) over a mean of 10.8 days. Uptake and acceptability of the intervention was good. All clusters demonstrated improved availability of vital signs equipment. There was an increase in the proportion of women having their blood pressure measured in pregnancy following the intervention (79.2% vs. 97.6%; OR 1.30 (1.29-1.31)) and no significant change in referral rates (3.7% vs. 4.4% OR 0.89; (0.39-2.05)). Availability of resources and acceptable, effective referral systems influenced health care provider interaction with the intervention. There was no correlation between process measures within or between domains, or between the composite score and the primary outcome. Conclusions: This process evaluation has successfully described the quantity and quality of implementation. Variation in implementation and context did not explain differences in the effectiveness of the intervention on maternal mortality and morbidity. We suggest future trials should prioritise in-depth evaluation of local context and clinical pathways. Trial registration: Trial registration: ISRCTN41244132. Registered on 2 Feb 2016.
AB - Background: Interventions aimed at reducing maternal mortality are increasingly complex. Understanding how complex interventions are delivered, to whom, and how they work is key in ensuring their rapid scale-up. We delivered a vital signs triage intervention into routine maternity care in eight low- and middle-income countries with the aim of reducing a composite outcome of morbidity and mortality. This was a pragmatic, hybrid effectiveness-implementation stepped-wedge randomised controlled trial. In this study, we present the results of the mixed-methods process evaluation. The aim was to describe implementation and local context and integrate results to determine whether differences in the effect of the intervention across sites could be explained. Methods: The duration and content of implementation, uptake of the intervention and its impact on clinical management were recorded. These were integrated with interviews (n = 36) and focus groups (n = 19) at 3 months and 6-9 months after implementation. In order to determine the effect of implementation on effectiveness, measures were ranked and averaged across implementation domains to create a composite implementation strength score and then correlated with the primary outcome. Results: Overall, 61.1% (n = 2747) of health care providers were trained in the intervention (range 16.5% to 89.2%) over a mean of 10.8 days. Uptake and acceptability of the intervention was good. All clusters demonstrated improved availability of vital signs equipment. There was an increase in the proportion of women having their blood pressure measured in pregnancy following the intervention (79.2% vs. 97.6%; OR 1.30 (1.29-1.31)) and no significant change in referral rates (3.7% vs. 4.4% OR 0.89; (0.39-2.05)). Availability of resources and acceptable, effective referral systems influenced health care provider interaction with the intervention. There was no correlation between process measures within or between domains, or between the composite score and the primary outcome. Conclusions: This process evaluation has successfully described the quantity and quality of implementation. Variation in implementation and context did not explain differences in the effectiveness of the intervention on maternal mortality and morbidity. We suggest future trials should prioritise in-depth evaluation of local context and clinical pathways. Trial registration: Trial registration: ISRCTN41244132. Registered on 2 Feb 2016.
KW - Complex intervention
KW - Global health
KW - Hybrid trial
KW - Implementation strength
KW - Maternal mortality
UR - http://www.scopus.com/inward/record.url?scp=85064522866&partnerID=8YFLogxK
U2 - 10.1186/s13012-019-0885-3
DO - 10.1186/s13012-019-0885-3
M3 - Article
AN - SCOPUS:85064522866
SN - 1748-5908
VL - 14
JO - Implementation Science
JF - Implementation Science
IS - 1
M1 - 38
ER -