Table 2. Reproductive, gynaecological and surgical histories of enrolled participants.
| Variables | Cases N = 88 n (%) |
Controls N = 176 n (%) |
OR (95%CI) | P value |
|---|---|---|---|---|
| Reproductive history | ||||
| Previous miscarriage | ||||
| Yes | 32 (36.4) | 51 (29.0) | 1.40 (0.81–2.41) | 0.223 |
| No | 50 (54.8) | 129 (75.2) | ||
| Prior induced abortion | ||||
| Yes | 38 (43.2) | 47 (26.7) | 2.08 (1.21–3.57) | 0.007 |
| No | 50 (56.8) | 129 (73.3) | ||
| Parity | ||||
| 0 | 22 (25.0) | 66 (37.5) | Reference | 0.020 |
| 1 | 19 (21.6) | 45 (25.6) | 0.76 (0.36–1.59) | |
| 2–3 | 35 (39.8) | 51 (29.0) | 0.38 (0.20–0.74) | |
| 4 or more | 12 (13.6) | 14 (8.0) | 0.34 (0.14–0.84) | |
| Surgical history | ||||
| Previous tubal surgery | ||||
| Yes | 5 (5.7) | 1 (0.6) | 10.54 (1.21–91.67) | 0.017 |
| No | 83 (94.3) | 175 (99.4) | ||
| Gynaecological history | ||||
| Prior CT infection | ||||
| Yes | 50 (68.5) | 44 (25.3) | 6.42 (2.77–10.38) | <0.001 |
| No | 23 (31.5) | 86 (48.9) | ||
| Prior PID | ||||
| Yes | 59 (67.0) | 23 (13.1) | 13.53 (7.24–25.26) | <0.001 |
| No | 29 (33.0) | 153 (86.9) | ||
| Prior EP | ||||
| Yes | 6 (6.8) | 2 (1,1) | 6.36 (1.25–32.22) | 0.018 |
| No | 82 (93.2) | 174 (98.9) | ||
| Previous infertility | ||||
| Yes | 32 (36.4) | 32 (18.2) | 2.57 (1.44–4.58) | 0.001 |
| No | 56 (63.6) | 144 (81.8) | ||
| Documented tubal pathology | ||||
| Yes | 7 (38.9) | 9 (13.8) | 3.96 (1.21–12.89) | 0.017 |
| No | 11 (61.1) | 56 (86.2) | ||
OR odds ratio, CI confidence interval, CT Chlamydia Trachomatis, PID pelvic inflammatory disease, EP ectopic pregnancy.