Table 1.
Key characteristics of the study population and prevalence of Chlamydia trachomatis EIA antibodies within descriptive categories for HPV seropositive controls, cases with invasive squamous cell cancer (SCC), and cases with in situ and invasive adenocarcinomas of the cervix (AC)
| Control (n=318) | SCC (n=302) | AC (n=185) | ||||
|---|---|---|---|---|---|---|
| n (%) C. trachomatis,% | n (%) C. trachomatis + | n (%) C. trachomatis, % | ||||
| Age | ||||||
| 18–33 | 80 (25.2) | 27.5 | 80 (26.5) | 51.2 | 63 (34.1) | 31.7 |
| 34–40 | 84 (26.4) | 29.8 | 63 (20.9) | 41.3 | 52 (28.1) | 28.8 |
| 41–50 | 82 (25.8) | 29.3 | 77 (25.5) | 37.7 | 48 (25.9) | 27.1 |
| 51–74 | 72 (22.6) | 16.7 | 82 (27.2) | 24.4 | 22 (11.9) | 18.2 |
| Race | ||||||
| White | 292 (91.8) | 25.0 | 278 (92.1) | 38.8 | 171 (92.4) | 26.9 |
| Non-White | 26 (8.2) | 38.5 | 24 (7.9) | 33.3 | 14 (7.6) | 42.9 |
| Education | ||||||
| >H.S. | 235 (73.9) | 26.0 | 158 (52.3) | 39.2 | 126 (68.1) | 25.4 |
| <=H.S. | 83 (26.1) | 26.5 | 144 (47.7) | 37.5 | 59 (31.9) | 33.9 |
| No. of Sex Partners | ||||||
| 1 | 65 (20.7) | 7.7 | 28 (9.3) | 17.9 | 29 (15.8) | 6.9 |
| 2–4 | 93 (29.6) | 19.4 | 106 (35.1) | 31.1 | 48 (26.1) | 22.9 |
| 5–4 | 112 (35.7) | 35.7 | 113 (37.4) | 41.6 | 76 (41.3) | 32.9 |
| 15+ | 44 (14.0) | 45.5 | 55 (18.2) | 56.4 | 31 (16.8) | 45.2 |
| Missing* | 4 | 0 | 1 | |||
*
3 controls with 0 partners, 1 control who refused to answer, and one case who had 0 partners and a diagnosis of clear cell adenocarcinoma are excluded from subsequent analyses.