Table 1 Sample characteristics.
Group | ||
|---|---|---|
Control (N = 128) | Risk (N = 20) | |
Sex ratio (male %: female %) | 57:43 | 70:30 |
Mean age in months (standard deviation) | 22.25 (3.94) | 23.53 (4.26) |
Mean mother’s age at childbirth (standard deviation) | 30.4 (5.29) | 31.2 (3.65) |
Mean father’s age at childbirth (standard deviation) | 33.92 (6.8) | 34.47 (4.64) |
Mean gestational age (weeks) at birth (standard deviation) | 38.57 (2.06) | 36.82 (2.87) |
Number of siblings (mode) | 1 | 1 |