Maternal early pregnancy body mass index, gestational weight gain and pregnancy outcomes among urban slum dwellers in Pune, India–A retrospective analysis

CONTEXT: Studies on prepregnancy body mass index (BMI), gestational weight gain (GWG), and pregnancy outcomes among urban Indian slums are sparse. AIMS: To study BMI during early pregnancy, GWG, and maternal and neonatal outcomes among slum-dwelling women in Pune, India. DESIGN: A retrospective study among pregnant women attending antenatal care (ANC) facility. METHODS AND MATERIAL: Anthropometric and clinical data throughout pregnancy and pregnancy outcomes postdelivery were collected during hospitalization for delivery using ANC cards. Asian BMI cut-offs were used to define underweight (UW), normal weight (NW), overweight (OW), and obesity (OB). GWG was classified into insufficient, adequate, and excessive categories (2009 Institute of Medicine). Statistical analysis was performed using R (v 4.0). RESULTS: Slum-dwelling pregnant women (n = 509, mean age 24 (3.6) years) were studied. Seventy-five percent of the women visited ANC clinics at least thrice during pregnancy. Only 17.5% (n = 89) of the women registered before 12 weeks of gestation, and higher education and being primiparous were the correlates. A total of 28% of the women were UW, whereas 25% of the women were OW/OB as per early pregnancy BMI. The highest percentage of preterm deliveries and cesarean/instrumental deliveries were observed in OW/OB categories. A total of 27% gained appropriate gestational weight. This cohort had 508 live births (mean BW- 2.8 kgs) and one stillbirth. One baby had macrosomia (BW >4 Kg), whereas 19% were low birth weight (LBW) (BW <2.5 Kg). CONCLUSIONS: Double burden of malnutrition (UW and OW) was observed among young slum-dwelling women. The proportion of slum-dwelling women attending ANC clinics during early pregnancy is still low. Increased uptake of government programs is required to enhance maternal and child health.