[Behavior of body weight during pregnancy]

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Human Physiology

Context:

• Observational study involving 946 pregnant women with regular pregnancies.
• Analysis of weight gain patterns from week 12 to 42.
• Consideration of factors like parity, maternal age, and height.

Purpose:

• To establish normal weight gain ranges during pregnancy.
• To investigate the influence of parity, age, and height on pregnancy weight gain.
• To identify potential variations in weight gain based on demographic factors.

Summary:

• Established normal weekly weight gain averages and distributions during pregnancy.
• Weight gain showed independence from parity, age, and height between weeks 21-25.
• First-time mothers, younger, and taller women exhibited greater weight gain compared to others.

Impact:

• Provides reference data for monitoring healthy pregnancy weight gain.
• Highlights demographic influences on maternal weight dynamics.
• Informs personalized prenatal care and nutritional guidance.