Table 1.
Demographic Characteristics of Sample (N = 100)
| M | SD | Median | Range | |
|---|---|---|---|---|
| Family characteristics | ||||
| Maternal age | 22.8 | 4.5 | 21.5 | 17–41 |
| Maternal age at first pregnancy | 17.8 | 2.5 | 18.0 | 13–29 |
| Family income (monthly) | 604.3 | 610.6 | 414.0 | 0–2,800 |
| % | ||||
| Mothers’ with high school degree | 70.0 | |||
| Married/coresiding with father | 30.0 | |||
| Pregnancy characteristics | % | |||
| Primiparous | 34.0 | |||
| Births by Caesarean sectiona | 21.0 | |||
| Cigarette use during pregnancyb | 14.0 | |||
| Alcohol use during pregnancyc | 4.0 | |||
| Infant characteristics | ||||
| Gestational age | 39.1 | 1.3 | 39.0 | 36–42 |
| Birth weight | 3,220.3 | 398.3 | 3,137.5 | 2,500–4,560 |
| % | ||||
| Males | 46.0 |
a
12 (57%) of the 21 births by Caesarean section were planned.
b
Range from one cigarette to one half-pack per day.
c
All 4 mothers reported drinking one to two times per month during the first trimester.