The Risk of Retinopathy of Prematurity in the Infants following Assisted Reproductive Technology: A Meta-Analysis

Figure 4

A forest plot diagram presenting the association between the use of ART and the ROP occurrence in different ROP stages. (a) Stage 1 ROP. (b) Stage 2 ROP. (c) ≥Stage 3 ROP. Events referred to the number of infants who developed to the ROP. Total referred to the general number of participants in the group. ART: assisted reproductive technology; SC: spontaneous conception; CI: confidence interval.

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(b)

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