The Effect on Mental Health of a Large Scale Psychosocial Intervention for Survivors of Mass Violence: A Quasi-Experimental Study in Rwanda
2011

Improving Mental Health in Rwandan Survivors of Mass Violence

Sample size: 200 publication 10 minutes Evidence: moderate

Author Information

Author(s): Willem F. Scholte, Femke Verduin, Astrid M. Kamperman, Theoneste Rutayisire, Aeilko H. Zwinderman, Karien Stronks

Primary Institution: Academic Medical Center, University of Amsterdam

Hypothesis

The mental health of programme participants would improve significantly relative to non-participants.

Conclusion

A large scale psychosocial intervention primarily aimed at social bonding caused a lasting improvement of mental health in survivors of mass violence in Rwanda.

Supporting Evidence

  • Mean SRQ-20 scores decreased by 2.3 points in the experimental group and 0.8 in the control group.
  • Women in the experimental group improved by 4.8 points to below cut-off.
  • Men showed a similar trend, but it was statistically non-significant.

Takeaway

This study shows that a group program helping people connect socially can make them feel better after experiencing violence.

Methodology

A prospective quasi-experimental study design with pre and post intervention measurements and an 8-month follow-up.

Potential Biases

Interviewers' knowledge of treatment conditions may have influenced results.

Limitations

The study was not randomized, and interviewers were not blind to treatment conditions.

Participant Demographics

Participants included 100 adults from both sexes, aged 15 and older, with a mix of educational backgrounds and socio-economic statuses.

Statistical Information

P-Value

0.033

Confidence Interval

−2.81 to −0.38

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021819

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