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Forest plot showed that steroid administration led to a significantly lower stricture rate than control (RR, 0.40; 95% CI, 0.20–0.81), and the lower stricture rate was mostly contributed by local steroid injection (RR, 0.42; 95% CI, 0.24–0.73) other than oral steroid (RR 0.36, 95% CI, 0.02–7.78). CI = confidence interval; M-H = Mantel Haenszel, RR = risk ratio.
