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Figure 1

From: Mortality and neurological outcomes in extremely and very preterm infants born to mothers with hypertensive disorders of pregnancy

Figure 1

Study enrolment. Data on 44,668 neonates born at NICUs participating in the Neonatal Research Network of Japan from January 2003 to December 2015 were available. Each of 4,584 neonates in the HDP and non-HDP groups was selected from eligible infants (HDP, n = 4,629; non-HDP, n = 17,030) after stratification matching using four factors, including maternal age, parity, weeks of gestation, and year of delivery. *Items not mutually exclusive. GDM, gestational diabetes mellitus; DM, diabetes mellitus; HDP, hypertensive disorders of pregnancy.

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