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. 2016 Aug 5;6:30732. doi: 10.1038/srep30732

Figure 3.

Figure 3

(a) Forest plot for univariate analysis of 15 studies examining the effect of PET only exposure on ROP (any type). The bars with squares in the middle represent 95% confidence intervals (95% CIs) and odds ratios (ORs). The central vertical solid line indicates the ORs for null hypothesis. (b) Forest plot for multivariate analysis of 9 studies examining the effect of PET only exposure on ROP (any type). The bars with squares in the middle represent 95% confidence intervals (95% CIs) and odds ratios (ORs). The central vertical solid line indicates the ORs for null hypothesis.