Conclusion
Our study indicates that an IPI of <24 months is related to a
greater risk of anemia in late pregnancy. IPI may synergize with other
factors to increase the risk of incomplete uterine rupture. An extremely
long IPI of ≥120 months is related to higher risks of GHP and GDM due to
increasing maternal age. An optimal IPI and gestational age should be
considered for families planning to have a second baby.