Fig. 4From: Systematic review and meta-analysis of the safety of chloroquine and hydroxychloroquine from randomized controlled trials on malarial and non-malarial conditionsMeta-analysis for frequency of retinopathy. CQ, chloroquine; HCQ, hydroxychloroquine. Peto’s method was adopted and studies with both-armed zero-event were excluded from the analysis. Significance test(s) of OR = 1, z = 0.69, p = 0.492Back to article page