Which factors may increase the risk for postpartum complications?

All of the listed factors can collectively contribute to an increased risk of postpartum complications. Age and previous childbirth experience are significant, as older maternal age can lead to higher chances of complications such as hypertension and gestational diabetes. In addition, a woman's prior experiences with childbirth can affect her recovery and risk factors in subsequent pregnancies.

Gestational diabetes and hypertension are critical health conditions that can arise during pregnancy and lead to complications during and after childbirth. These conditions may cause various issues, such as increased risk of cesarean delivery, postpartum hemorrhage, and complications for both mother and baby.

Excessive body weight and a sedentary lifestyle are also pivotal factors; obesity can lead to various complications such as preeclampsia, gestational diabetes, and can complicate recovery after delivery. A lack of physical activity can further exacerbate these risks, influencing both the mother's physical health postpartum and her ability to care for herself and her newborn.

Since each factor adds to the risk for postpartum complications independently, recognizing that all these elements can interact to elevate risk leads to the conclusion that all the listed factors contribute to increased postpartum complications.