Table 1.
Demographic Characteristics of the Michigan Mother Infant Pairs (MMIP) Study (n=56)
| Median or N (%) | Range (Min – Max) | |
|---|---|---|
| Mother | ||
| Age | 31.5 | (26 – 40) |
| Pre-pregnancy BMI a | 23.41 | (19.24 – 48.41) |
| Parity | ||
| 0 | 14 (25.0) | |
| 1 | 21 (37.5) | |
| 2 | 14 (25.0) | |
| 3 | 5 (8.9) | |
| 4 | 2 (3.6) | |
| Smoking status | ||
| Never | 49 (89.1) | |
| Past smoker | 6 (10.9) | |
| Education | ||
| High School | 4 (7.1) | |
| Some college | 34 (60.7) | |
| ≥ Bachelor’s | 18 (32.1) | |
| Marital status | ||
| Married | 50 (89.3) | |
| Single | 6 (10.7) | |
| Infant | ||
| Gestational age (weeks) | 39.9 | (37.6 – 41.7) |
| Infant gender | ||
| Female | 29 (51.8) | |
| Male | 27 (48.2) | |
| Route of delivery | ||
| Cesarean | 19 (33.9) | |
| Vaginal | 37 (66.1) | |
| Birthweight (g) | 3520 | (2805 – 4685) |
| Fenton z-score % tile | 59.65 | (6.58 – 95.14) |
| Fetal Anthropometryb | ||
| Abdominal circ. | 138.7 | (111 – 242) |
| Biparietal diameter | 43.85 | (36 – 70) |
| Femur length | 29.5 | (23 – 51) |
| Head circ.c | 162.25 | (135 – 265) |
a
n=53
b
Units= mm
c
Circ: circumference