Risk ratios are adjusted for maternal age and BMI at 12-week gestation
in the first pregnancy, ethnicity, interpregnancy interval and
respective pregnancy outcomes in the first pregnancy. BMI stable (-1 to
< 1 kg/m2) serves as the reference group.
RR, risk ratio; CI, confidence interval; AGA, appropriate for
gestational age; SGA, small for gestational age; LGA, large for
gestational age.
Table 3 Association between interpregnancy body mass index
(BMI) change status and outcomes of second pregnancy, by weight status
at 12-week gestation in the first pregnancy