OBJECTIVE:

The relationship between gestational hypertension, preeclampsia, and the risk of retinopathy of prematurity (ROP) remains unclear. Thus, we used a large cohort database to study the influence of maternal gestational hypertension and preeclampsia on the occurrence of ROP in preterm infants.

METHODS:

We used data from a previous retrospective cohort study that includes 25 473 eligible preterm neonates. We examined the association between gestational hypertension, preeclampsia, and ROP while controlling for potential confounders by multiple logistic regression analysis.

RESULTS:

Of the 8758 early preterm infants (gestational age <34 weeks), 1024 (11.69%) had ROP, while of the 16 715 late preterm infants, only 29 (0.17%) had ROP. After adjusting for confounders, preeclampsia was associated with a significantly reduced risk of ROP (adjusted odds ratio [aOR], 0.65; 95% confidence interval [CI], 0.49–0.86 for early preterm birth; aOR, 0.10; 95% CI, 0.01–0.93 for late preterm birth; aOR, 0.66; 95% CI, 0.50–0.87 for all preterm births). Gestational hypertension was not significantly associated with ROP at early or late preterm births.

CONCLUSIONS:

Preeclampsia, but not gestational hypertension, was associated with a reduced risk of ROP in preterm births.

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