Table 2 The association between chlamydial infection, previous PID and infertility: conditional logistic regression model
From: Chlamydia infection, PID, and infertility: further evidence from a case–control study in China
Exposure | Cases: infertility | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Cases (n = 255) | Controls: non-pregnant women (n = 510) | Controls: pregnant women (n = 510) | |||||||||
No. (%) | No. (%) | cOR (95% CI)a | P | aOR (95% CI)b | P | No. (%) | cOR (95% CI)a | P | aOR (95% CI)b | P | |
NAAT chlamydia infection | |||||||||||
No | 240 (94.1) | 471 (92.9) | Referent | Referent | 472 (92.7) | Referent | Referent | ||||
Yes | 15 (5.9) | 36 (7.1) | 0.80 (0.43, 1.51) | 0.50 | 0.56 (0.25, 1.26) | 0.16 | 37 (7.3) | 0.80 (0.43, 1.48) | 0.48 | 0.66 (0.32, 1.38) | 0.27 |
Previous PID diagnosis | |||||||||||
No | 211 (82.7) | 464 (91.0) | Referent | Referent | 492 (97.0) | Referent | Referent | ||||
Yes | 44 (17.3) | 46 (9.0) | 2.07 (1.33, 3.22) | < 0.01 | 2.57 (1.51, 4.39) | < 0.01 | 15 (3.0) | 6.55 (3.53, 12.19) | < 0.01 | 6.83 (3.47, 13.43) | < 0.01 |