Fig. 4
From: Effectiveness of indoor residual spraying on malaria control: a systematic review and meta-analysis
The effect of indoor residual spraying on the malaria control in subgroup analysis using the random effects model. Ni: the number of people who accepted indoor residual spraying (IRS); Nc: the number of people who did not accept IRS; OR: odds ratio; CI: confidence interval; P: P-value denoting the level of heterogeneity among studies; RCT: randomized controlled trial; DDT: dichloro-diphenyl-tricgloroethane