Comparison of odds ratio in alopecia. The summary of OR was calculated using the random effect model. Squares are ORs of alopecia for separate trials. Horizontal lines through the squares represent 95% CIs. The diamond represents the overall OR of alopecia from the meta-analysis and the corresponding 95% CIs. The horizontal line with an arrow indicates the trial with highest OR. The studies that enrolled liposomal doxorubicin and conventional anthracyclines were separated into two groups for this analysis. Abbreviations: CI: Confidence interval; OR: Odd ratio.