Table 2.
The comparison of the baseline characteristics
| Recurrent ectopic | Primary ectopic | ||||
|---|---|---|---|---|---|
| Mean (±SD) or % (n) | Mean (±SD) or % (n) | p value | Mean difference or odds ratio | 95 % CI | |
| Baseline characteristics of women with EP | |||||
| Agea | 32.2 (5.08) | 30.5 (5.83) | 0.0049 | −1.65 | −2.78 to −0.51 |
| Parity 1b | |||||
| P0 | 37.5 (33/88) | 44.7 (327/732) | 0.2127 | 0.7431 | 0.471 to 1.172 |
| P1–P3 | 54.5 (48/88) | 51.8 (379/732) | 0.6526 | 1.118 | 0.717 to 1.742 |
| P4 or more | 8.0 (7/88) | 3.6 (26/732) | 0.0755 | 2.347 | 0.9872 to 5.578 |
| Gestationa | 5.99 (1.08) | 6.52 (1.81) | 0.0001 | 0.5402 | 0.2728 to 0.8076 |
| Risk factors for EP in women with primary and recurrent EP | |||||
| Smoking | 18.7 (17/91) | 14.6 (108/741) | 0.3498 | 1.346 | 0.7650 to 2.370 |
| Previous tubal surgery | 61.4 (54/88) | 3.5 (26/740) | <0.0001 | 43.62 | 24.40 to 77.97 |
| Previous pelvic surgery | 53.8 (49/91) | 14.0 (104/743) | <0.0001 | 7.168 | 4.519 to 11.37 |
| Previous miscarriage | 27.5 (25/91) | 24.1 (179/742) | 0.5185 | 1.191 | 0.7297 to 1.945 |
| Previous TOP | 14.3 (13/91) | 18.7 (139/743) | 0.3875 | 0.7242 | 0.3913 to 1.340 |
| Assisted reproduction | 3.3 (3/91) | 4.3 (32/743) | 1.0 | 0.7575 | 0.2272 to 2.526 |
| Previous infertility | 12.1 (11/91) | 7.8 (58/743) | 0.1602 | 1.624 | 0.8186 to 3.222 |
| Previous PID | 8.8 (8/91) | 7.7 (57/742) | 0.6794 | 1.158 | 0.5339 to 2.513 |
| IUD | 0 % | 1.3 % (10/733) | 0.6121 | 2.62 | 0.1521 to 45.11 |
| Mirena coil | 0 % | 0.9 % (7/743) | 1 | 1.864 | 0.1055 to 32.92 |
| Clinical presentation of women with primary and recurrent EP | |||||
| Painb | 93.4 (85/91) | 94.5 (705/746) | 0.63 | 0.8239 | 0.3397 to 1.998 |
| Bleedingb | 80.2 (73/91) | 85.0 (634/746) | 0.2239 | 0.7164 | 0.4118 to 1.246 |
| Vomitingb | 7.7 (7/91) | 9.7 (72/746) | 0.7041 | 0.7801 | 0.3475 to 1.751 |
| Diarrhoeab | 0 (0/91) | 1.9 (14/746) | 0.3849 | 0.2761 | 0.01632 to 4.670 |
| Shoulder tip painb | 4.4 (4/91) | 10.5 (78/745) | 0.0899 | 0.3932 | 0.1404 to 1.101 |
| Syncopal attackb | 6.6 (6/91) | 11.1 (83/745) | 0.2112 | 0.563 | 0.2385 to 1.329 |
| 1st βHCGa | 3176 (7350) | 6243 (12,282) | 0.0099 | 3053 | 750 to 5355 |
| TVSb | 95.6 (87/91) | 88.3 (651/737) | 0.0323 | 0.348 | 0.1246 to 0.9724 |
| TASb | 12.1 (11/91) | 17.1 (126/738) | 0.2943 | 1.497 | 0.7747 to 2.894 |
| Both TVS and TASb | 11.0 (10/91) | 12.0 (88/735) | 1 | 1.102 | 0.5505 to 2.205 |
| Ultrasound scan findings | |||||
| Adnexal massb | 84.6 (77/91) | 88.6 (643/726) | 0.3007 | 1.409 | 0.7624 to 2.602 |
| Gest sacb | 24.2 (22/91) | 20.3 (148/730) | 0.4104 | 0.7976 | 0.4776 to 1.332 |
| FHb | 12.1 (11/91) | 8.9 (65/730) | 0.3363 | 0.7109 | 0.3602 to 1.403 |
| PoD fluidb | 68.1 (62/91) | 76.3 (557/730) | 0.094 | 1.506 | 0.9385 to 2.417 |
The comparison of the baseline characteristics, risk factors, the clinical presentations and ultrasound scan findings of women presenting with primary EP compared with recurrent EP
TVS transvaginal ultrasound scan, TAS transabdominal ultrasound scan, PID pelvic inflammatory disease, IUD intrauterine device, FH fetal heartbeat, PoD pouch of douglas
aData shown as mean (SD) and analysed by Student’s t test, with mean difference and 95 % confidence interval
bData shown as % and analysed by Fisher’s exact test with Odds ratio (OR) and 95 % confidence interval