Table 1.
Sociodemographic and health characteristics of case and control participants.
| Cases | Controls | |||
|---|---|---|---|---|
| Number | Percent | Number | Percent | |
| Total | 313 | 100 | 727 | 100 |
| Age (years) | ||||
| <20 | 10 | 3.2 | 22 | 3.0 |
| 20-29 | 44 | 14.1 | 94 | 12.9 |
| 30-39 | 105 | 33.5 | 251 | 34.5 |
| 40-49 | 154 | 49.2 | 360 | 49.5 |
| Race/ethnicity | ||||
| NH Caucasian | 251 | 80.2 | 588 | 81.0 |
| NH African-American | 11 | 3.5 | 38 | 5.2 |
| NH Asian/Pacific Islander | 20 | 6.4 | 48 | 6.6 |
| NH Other | 9 | 2.9 | 30 | 4.1 |
| Hispanic | 22 | 7.0 | 22 | 3.0 |
| Highest educational level completed | ||||
| < 12 years | 11 | 3.5 | 23 | 3.2 |
| 12 years | 56 | 17.9 | 136 | 18.7 |
| Some college | 102 | 32.6 | 268 | 36.9 |
| College graduate | 92 | 29.4 | 163 | 22.4 |
| Post graduate | 52 | 16.6 | 137 | 18.8 |
| Nulliparity | ||||
| No births | 150 | 47.9 | 208 | 28.6 |
| Any births | 163 | 52.1 | 519 | 71.4 |
| Gravidity | ||||
| 0 pregnancies | 118 | 37.7 | 154 | 21.2 |
| 1 pregnancies | 45 | 14.4 | 121 | 16.6 |
| 2 pregnancies | 73 | 23.3 | 185 | 25.5 |
| 3 births or more | 77 | 24.6 | 267 | 36.7 |
| Tobacco use | ||||
| Never | 175 | 55.9 | 436 | 60.1 |
| Former | 73 | 23.3 | 170 | 23.4 |
| Current | 65 | 20.8 | 120 | 16.5 |
| Alcohol use | ||||
| Never | 92 | 29.4 | 258 | 35.5 |
| Former | 62 | 19.8 | 162 | 22.3 |
| Current | 159 | 50.8 | 307 | 42.2 |
| Oral contraceptive use | ||||
| Never | 35 | 11.2 | 117 | 16.1 |
| Former | 237 | 75.7 | 518 | 71.3 |
| Current | 41 | 13.1 | 92 | 12.7 |
NH: Non-Hispanic.