Which condition is NOT a risk factor for prematurity?

• A. Maternal substance abuse
• B. Short interpregnancy interval
• C. High maternal BMI
• D. Multiple abortions

Answer: (C)

A high maternal BMI is actually associated with increased risk factors for various pregnancy complications, including prematurity. While it is true that maternal obesity can contribute to complications such as gestational diabetes and hypertension, the relationship with prematurity is less direct compared to the other factors listed.

Maternal substance abuse, particularly the use of drugs like cocaine or alcohol, can lead to adverse outcomes that increase the likelihood of preterm birth. A short interpregnancy interval is well-documented as a risk factor for prematurity due to insufficient time for the maternal body to recover between pregnancies. Multiple abortions may lead to uterine scarring or other reproductive issues that can contribute to the risk of prematurity in subsequent pregnancies.

Therefore, the connection between high maternal BMI and prematurity does not have the same level of evidence or correlation as the other conditions mentioned, making it the correct choice in this context.