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Effectiveness of a task-sharing collaborative care model for identification and management of depressive symptoms in patients with hypertension attending public sector primary care clinics in South Africa: pragmatic parallel cluster randomised controlled

Abstract：

BACKGROUND:We tested the real-world effectiveness of a collaborative task-sharing model on depressive symptom reduction in hypertensive Primary Health Care (PHC) patients in South Africa. METHOD:A pragmatic parallel cluster randomised trial in 20 clinics in the Dr Kenneth Kaunda district, North West province. PHC clinics were stratified by sub-district and randomised in a 1:1 ratio. Control clinics received care as usual (CAU), involving referral to PHC doctors and/or mental health specialists. Intervention clinics received CAU plus enhanced mental health training and a lay counselling referral service. Participant inclusion criteria were ≥ 18 years old, Patient Health Questionnaire-9 (PHQ-9) score ≥ 9 and receiving hypertension medication. Primary superiority outcome was ≥ 50% reduction in PHQ-9 score at 6 months. Statistical analyses comprised mixed effects regression models and a non-inferiority analysis. TRIAL REGISTRATION NUMBER:NCT02425124. RESULTS:Between April 2015 and October 2015, 1043 participants were enrolled (504 intervention and 539 control); 82% were women; half were ≥ 55 years. At 6 and 12 months follow-up, 91% and 89% of participants were interviewed respectively. One control group participant committed suicide. There was no significant difference in the primary outcome between intervention (N=256/456) and control (N=232/492) groups (55.9% versus 50.9%; adjusted risk difference = -0.04 ([95% CI = -0.19; 0.11], p = 0.6). The difference in PHQ-9 scores was within the defined equivalence limits at 6 and 12 months for the non-inferiority analysis. LIMITATIONS:The trial was limited by low exposure to depression treatment by trial participants and by observed co-intervention in control clinics CONCLUSIONS: Incorporating lay counselling services within collaborative care models does not produce superior nor inferior outcomes to models with specialist only counselling services. FUNDING:This work was supported by the UK Department for International Development [201446] as well as the National Institute of Mental Health, United States of America, grant number 1R01MH100470-01. Graham Thornicroft is supported by the National Institute for Health Research (NIHR) Applied Research Collaboration (ARC) South London at King's College London and King's College Hospital NHS Foundation Trust.

journal_name

J Affect Disord

journal_title

Journal of affective disorders

authors

Petersen I,Fairall L,Zani B,Bhana A,Lombard C,Folb N,Selohilwe O,Georgeu-Pepper D,Petrus R,Mntambo N,Kathree T,Bachmann M,Levitt N,Thornicroft G,Lund C

doi

10.1016/j.jad.2020.12.123

subject

Has Abstract

pub_date

2020-12-28 00:00:00

pages

112-121

eissn

0165-0327

issn

1573-2517

pii

S0165-0327(20)33213-4

journal_volume

282

pub_type

杂志文章

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Effectiveness of a task-sharing collaborative care model for identification and management of depressive symptoms in patients with hypertension attending public sector primary care clinics in South Africa: pragmatic parallel cluster randomised controlled