Table.
Obstetric characteristics according to pre-pregnancy maternal BMI*
| Maternal BMI | ||||
|---|---|---|---|---|
| All Subjects (N=27) | <25 kg/m2 (N=15) | 25–30 kg/m2 (N=12) | P Value ‡ | |
| Maternal | ||||
| Age - years | 30.4±5.7 | 30.7±5.6 | 30.1±6.0 | 0.79 |
| Primipara - no. (%) | 18 (66.6) | 10 (66.7) | 8 (66.6) | 0.99 |
| In vitro fertilization - no. (%) | 2 (7.4) | 2 (13.3) | 0 (0.0) | 0.48 |
| Cesarean delivery - no. (%) | 3 (11.1) | 2 (13.3) | 1 (8.3) | 0.99 |
| Tobacco use - no. (%) | 11 (40.7) | 5 (33.3) | 6 (50.0) | 0.45 |
| Gestational weight gain - kg | 12.6±4.8 | 12.2±2.7 | 13.0±6.7 | 0.84 |
| Postpartum weight retention - kg † | 0.0±4.4 | −0.6±4.1 | 0.7±4.9 | 0.35 |
| Neonatal | ||||
| Male - no. (%) | 19 (70.4) | 8 (53.3) | 11 (91.6) | 0.04 |
| Gestation age - weeks | 38.8±2.3 | 38.8±1.6 | 38.7±3.0 | 0.46 |
| Preterm birth - no. (%) | 5 (18.5) | 2 (13.3) | 3 (25.0) | 0.63 |
| Birth weight - kg | 3.2±0.7 | 3.3±0.6 | 3.2±0.8 | 0.88 |
| Lipid profile in cord blood † | ||||
| Total cholesterol - mg/dL | 45.8±14.4 | 44.3±14.6 | 47.6±14.7 | 0.58 |
| HDL cholesterol - mg/dL | 20.2±7.2 | 20.2±7.3 | 20.2±7.4 | 0.99 |
| LDL cholesterol - mg/dL | 15.5±7.1 | 15.2±5.7 | 15.8±8.8 | 0.84 |
| Triglycerides - mg/dL | 26.4±12.9 | 25.2±12.2 | 27.7±14.0 | 0.61 |
*
Categorical variables are represented by absolute frequencies and percentages (n,%). Non-categorical variables are represented by mean±SD.
†
Values for postpartum weight retention and lipid profile are from N=25 subjects.
‡
P values are from comparison of the maternal BMI <25 kg/m2 and the 25–30 kg/m2 groups. Categorical variables were analyzed with Pearson chi-squared tests except for tobacco use that was analyzed with Fisher exact test. Non-categorical variables were analyzed with Mann-Whitney U tests except for maternal age, Total cholesterol, HDL, LDL that were normally distributed and were analyzed with student's t-test.