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Comparison of perinatal complications between 2020 group and control group. Preterm labor, preterm premature rupture of membranes (PROM), hypertensive disorder of pregnancy (HDP) and preterm delivery were reduced during COVID‐19 pandemic compared with before. Especially, the rate of HDP and preterm delivery in 2020 group were significantly lower than those in control group (P = 0.017 and P = 0.019). (
) Control group; (
) 2020 group
