Feasibility of M-health Version of "What Were We Thinking" Intervention to Promote Maternal Postpartum Mental Health

The purpose of this study is to assess the feasibility, acceptability and preliminary effectiveness of "What Were We Thinking" (WWWT) a psychoeducational intervention -delivered remotely via communication technologies- to prevent symptoms of postpartum depression and anxiety in new mothers; which has been shown to be effective in primary health settings. WWWT was developed in Australia and has been culturally adapted to be used in Chile. The m-health version of the Chilean adaptation of WWWT for the current study includes: Psychoeducational modules on issues relevant to mothers during the post-partum period; contact with the program facilitator through instant messaging services available on mobile phones and a virtual group meeting. This pilot study will use a mixed design. The quantitative component will consist of a before-after design with control group including 90 adult mothers of child aged 6-8 weeks who receive health care in a primary health centers in Santiago, Chile. Mothers will be randomized into the experimental (EG) or control groups (CG) in a rate of 1:1. Both EG and CG will receive usual treatment provided by primary health centers (TAU), and only de EG will receive the m-health adapted version of the WWWT. The qualitative component considers 12 users semi-structured interviews. The maximum variation sampling strategy will be used according to the completion of m-health version of WWWT. An open coding of Grounded Theory will be used to data analysis. The feasibility of m-health version of WWWT intervention will be evaluated in terms of eligibility rates, recruitment rates and reasons for study refusals, feasibility to deliver the three components of the intervention, data attrition and follow-up rates by treatment condition. Their acceptability considers participant completion of the intervention rates, and a qualitative assessment of the users' acceptability of and satisfaction. Secondary outcomes will include changes on maternal levels of depre