Association between maternal interpregnancy interval after live birth or pregnancy termination and birth weight: a quantile regression analysis

摘要

We used quantile regression (QR) to assess if the length of the interpregnancy interval (IPI) after live birth and pregnancy termination is associated with weight in subsequent birth. The analysis included 9663 and 3400 women with IPI after live birth and pregnancy termination, respectively. For the women after live birth, an IPI 119 months in the upper quantile (95th) had an increase of 330?g in BW. Our results demonstrated that both short ( 36 months) IPIs are independently associated with higher risks of low birth weight (LBW) and macrosomia.