Some factors affecting birth weights in Morogoro, Tanzania

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Nutritional Science

Background:

• Maternal nutrition significantly impacts fetal development and birth weight.
• Understanding factors influencing birth weight is crucial for perinatal health outcomes.
• Third-trimester weight gain is a key indicator of maternal nutritional status.

Purpose of the Study:

• To investigate the association between third-trimester maternal weight gain and birth weight in singleton deliveries.
• To explore relationships between birth weight and gestational period, maternal age, parity, and maternal weight near term.

Main Methods:

• A prospective study followed 332 pregnant women in their third trimester in Morogoro, Tanzania.
• Univariate and multiple regression analyses were used to assess correlations and independent predictors of birth weight.

Main Results:

• A strong positive correlation was observed between birth weight and gestational period.
• Maternal weight gain in the third trimester showed a weak correlation with birth weight.
• Gestational period and maternal weight near term were independently related to birth weight.

Conclusions:

• Third-trimester maternal weight gain had a limited impact on birth weight in this cohort.
• Physiological adaptations may protect fetal growth despite inadequate maternal nutrition during pregnancy.
• Gestational age and pre-delivery maternal weight are stronger determinants of birth weight.