Task sharing of a psychological intervention for maternal depression in Khayelitsha, South Africa : study protocol for a randomized controlled trial

Lund, Crick ; Schneider, Marguerite ; Davies, Thandi ; Nyatsanza, Memory ; Honikman, Simone ; Bhana, Arvin ; Bass, Judith ; Bolton, Paul ; Dewey, Michael ; Joska, John ; Kagee, Ashraf ; Myer, Landon ; Petersen, Inge ; Prince, Martin ; Stein, Dan J. ; Thornicroft, Graham ; Tomlinson, Mark ; Alem, Atalay ; Susser, Ezra (2014-11)

CITATION: Lund, C. et al. 2014. Task sharing of a psychological intervention for maternal depression in Khayelitsha, South Africa: study protocol for a randomized controlled trial. Trials, 15:457 doi:10.1186/1745-6215-15-457.

The original article is available at http://www.trialsjournal.com/content/15/1/457

Article

Background: Maternal depression carries a major public health burden for mothers and their infants, yet there is a substantial treatment gap for this condition in low-resourced regions such as sub-Saharan Africa. To address this treatment gap, the strategy of “task sharing” has been proposed, involving the delivery of interventions by non-specialist health workers trained and supervised by specialists in routine healthcare delivery systems. Several psychological interventions have shown benefit in treating maternal depression, but few have been rigorously evaluated using a task sharing approach. The proposed trial will be the first randomised controlled trial (RCT) evaluating a task sharing model of delivering care for women with maternal depression in sub-Saharan Africa. The objective of this RCT is to determine the effectiveness and cost-effectiveness of a task sharing counseling intervention for maternal depression in South Africa. Methods/Design: The study is an individual-level two-arm RCT. A total of 420 depressed pregnant women will be recruited from two ante-natal clinics in a low-income township area of Cape Town, using the Edinburgh Postnatal Depression Scale to screen for depression; 210 women will be randomly allocated to each of the intervention and control arms. The intervention group will be given six sessions of basic counseling over a period of 3 to 4 months, provided by trained community health workers (CHW)s. The control group will receive three monthly phone calls from a CHW trained to conduct phone calls but not basic counseling. The primary outcome measure is the 17-Item Hamilton Depression Rating Scale (HDRS-17). The outcome measures will be applied at the baseline assessment, and at three follow-up points: 1 month before delivery, and 3 and 12 months after delivery. The primary analysis will be by intention-to-treat and secondary analyses will be on a per protocol population. The primary outcome measure will be analyzed using linear regression adjusting for baseline symptom severity measured using the HDRS-17. Discussion: The findings of this trial can provide policy makers with evidence regarding the effectiveness and cost-effectiveness of structured psychological interventions for maternal depression delivered by appropriately trained and supervised non-specialist CHWs in sub-Saharan Africa. Trial registration: Clinical Trials: (ClinicalTrials.gov): NCT01977326, registered on 24/10/2013; Pan African Clinical Trials Registry (http://www.pactr.org): PACTR201403000676264, registered on 11/10/2013.

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