Table 1 Characteristics of study population
Characteristics | n | % |
|---|---|---|
Nulliparous | 103 | 46.6 |
Previous abortion | 27 | 12.2 |
At least one living child | 118 | 53.4 |
White | 168 | 76.0 |
Age (years) | ||
14 – 19 | 21 | 9.5 |
20 – 29 | 98 | 44.3 |
30 – 39 | 85 | 38.5 |
40 – 45 | 17 | 7.7 |
Gestational age (weeks) | ||
14 – 16 | 7 | 3.2 |
17 – 21 | 23 | 10.4 |
22 – 24 | 23 | 10.4 |
25 – 28 | 43 | 19.5 |
29 – 32 | 50 | 22.6 |
33 – 36 | 30 | 13.6 |
37 – 40 | 45 | 20.4 |
Total | 221 |