Research Article
Chlamydia trachomatis Serology in Women with and without Ovarian Cancer
Table 1
Frequencies of demographic and reproductive characteristics by case/control status.
| | Variable | Case subjects no. (%) | Control subjects no. (%) | (P value) |
| | Age group, years | | | | | 24–49 | 135 (25.9) | 204 (26.6) | 9.29 (.026) | | 50–56 | 111 (21.3) | 208 (27.2) | | 57–66 | 129 (24.8) | 187 (24.4) | | ≥67 | 146 (28.0) | 167 (21.8) |
| | Ethnic group | | | | | White | 495 (95.0) | 736 (96.1) | 1.14 (.57) | | Black | 19 (3.6) | 20 (2.6) | | Other | 7 (1.3) | 10 (1.3) |
| | Education | | | | | Less than high school | 46 (8.8) | 37 (4.8) | 13.56 (.001) | | High school | 180 (34.5) | 229 (29.9) | | Posthigh school | 295 (56.6) | 500 (65.3) |
| | Family history of ovarian cancer | | | | | No | 487 (95.3) | 731 (97.3) | 3.74 (.053) | | Yes | 24 (4.7) | 20 (2.7) |
| | Live births | | | | | None | 124 (23.8) | 104 (13.6) | 22.23 (.000) | | Any | 397 (76.2) | 662 (86.4) |
| | Tubal ligation | | | | | No | 389 (78.3) | 490 (65.0) | 25.3 (.000) | | Yes | 108 (21.7) | 264 (35.0) |
| | Oral Contraception, years | | | | | 0 | 223 (42.8) | 214 (27.9) | 40.02 (.000) | | <1–4 | 205 (39.3) | 321 (41.9) | | 5–9 | 59 (11.3) | 134 (17.5) | | ≥10 | 34 (6.5) | 97 (12.7) |
| | Menopausal status | | | | | Premenopausal | 142 (30.4) | 194 (29.9) | .028 (.87) | | Postmenopausal | 325 (69.6) | 454 (70.1) |
| | Self-report PID | | | | | No | 515 (98.8) | 759 (99.1) | .18 (.68) | | Yes | 6 (1.2) | 7 (0.9) |
| | Self-report gonococcal or chlamydial cervicitis | | | | | No | 502 (96.4) | 736 (96.1) | .062 (.80) | | Yes | 19 (3.6) | 30 (3.9) |
|
|
