Table 2. Normal weight obesity according to early life variables, 1978/79 Ribeirão Preto birth cohort.
| Variables | Normal weight obesitya | P | |
| No (n = 1111) n (%) | Yes (n = 111) n (%) | ||
| Maternal schooling (years) | 0.786b | ||
| ≤4 | 484 (91.7) | 44 (8.3) | |
| 5 to 8 | 284 (90.5) | 30 (9.5) | |
| 9 to 11 | 189 (90.9) | 19 (9.1) | |
| ≥12 | 130 (89.0) | 16 (11.0) | |
| Maternal parity | 0.101b | ||
| 1 | 405 (88.6) | 52 (11.4) | |
| 2 to 4 | 595 (92.3) | 50 (7.8) | |
| ≥5 | 87 (92.5) | 7 (7.5) | |
| Type of delivery | 0.521b | ||
| Vaginal | 768 (90.6) | 80 (9.4) | |
| Cesarean | 343 (91.7) | 31 (8.3) | |
| Maternal smoking during pregnancy | 0.384b | ||
| No | 819 (91.3) | 78 (8.7) | |
| Yes | 268 (89.6) | 31 (10.4) | |
| Birth weight (grams) | 3238±500c | 3299±436c | 0.220d |
| Gestational age at birth (weeks) | 39.0±1.8c | 39.3±1.3c | 0.071d |
a
Normal weight obesity defined as a BMI from 18.5 to 24.9 kg/m2 and the sum of triceps and subscapular skinfolds >90th percentile of the study sample for each sex. bP values calculated by the chi-square test. cValues are mean ± standard deviation. dP values calculated by the Student t-test. Numbers may not add up to total because of missing values.