Table 1.
Description of the study population.
| Children with rapid infant weight gain (CWGa ≥ 0), N = 104 | Children without rapid infant weight gain (CWG < 0), N = 122) | |
|---|---|---|
| Children | ||
| Gender: Number (%) of males | 53 (51) | 67 (55) |
| Gestational age: weeks (S.D.) | 39.59 (1.17) | 39.46 (1.22) |
| Birth weight: kg (S.D.) | 3.44 (0.44) | 3.41 (0.41) |
| Birth length: cm (S.D.) | 51.03 (2.39) | 50.73 (2.26) |
| Mothers | ||
| Age (years): mean (S.D.) | 28.87 (4.40) | 29.20 (4.75) |
| Pre-pregnancy BMI: mean (S.D.) | 25.78 (5.55) | 25.41 (5.03) |
| Gestational Weight Gain: mean (S.D) | 15.73 (5.91) | 14.46 (6.33) |
| Annual household income N (%) | ||
| <$10,000 | 3 of 99 (1.4) | 4 of 118 (1.8) |
| $10,000–$24,999 | 5 of 99 (2.3) | 9 of 118 (4.2) |
| $25,000–$49,999 | 12 of 99 (5.5) | 10 of 118 (4.6) |
| $50,000–$74,999 | 29 of 99 (13.4) | 34 of 118 (15.7) |
| $75,000–$99,999 | 26 of 99 (12) | 22 of 118 (10.1) |
| $100,000 or more | 24 of 99 (11) | 39 of 118 (18.0) |
| Ethnicity b N (%) | ||
| Black | 4 (3.9%) | 5 (4.1%) |
| White | 98 (94%) | 111 (91%) |
| Native Hawaiian or Pacific Islander | 0% | 1 (0.8%) |
| Asian | 1 (1%) | 4 (3.3%) |
| Other | 1 (1%) | 1 (0.9%) |
| Maternal Education N (%) | ||
| HS graduate or less | 10 (9.6%) | 6 (4.9%) |
| Some college | 28 (26.9%) | 27 (22.1%) |
| College graduate | 40 (38.5%) | 51 (41.8%) |
| Graduate degree + | 26 (25.0%) | 38 (31.2%) |
aCWG is conditional weight gain (see text for more details).
bEthnicity was self-reported.