Table 1 Comparison of baseline characteristics among patients in three groups
MTX group (n = 120) | Curettage group (n = 106) | Hysteroscopy group (n = 221) | P value | ||
|---|---|---|---|---|---|
Age (years) | 34.0 (30.0, 38.0) | 33.0 (29.0, 36.0) | 33.0 (30.0, 37.0) | 0.472 | |
Number of caesarean sections | |||||
1 | 66(55.0%) | 59 (55.7%) | 123 (55.7%) | 0.999 | |
2 | 50(41.7%) | 43 (40.6%) | 91 (41.2%) | ||
3 | 4(3.3%) | 4 (3.8%) | 7 (3.2%) | ||
Years from last caesarean | 5.0 (2.0, 9.0) | 4.0 (2.0, 7.0) | 4.0 (2.1, 7.8) | 0.369 | |
Vaginal bleeding | Yes | 73 (60.8%) | 54 (50.9%) | 132 (59.7%) | 0.243 |
No | 47 (39.2%) | 52 (49.1%) | 89 (40.3%) | ||
Abdominal pain | Yes | 25 (20.8%) | 27 (25.5%) | 52 (23.5%) | 0.706 |
No | 95 (79.2%) | 79 (74.5%) | 169 (76.5%) | ||
Gestational age (days) | 49.0 (42.0, 56.0) | 49.0 (42.0, 62.0) | 49.5 (42.3, 59.0) | 0.914 | |
Gestation sac/mass diameter (cm) | 2.6 (1.8, 3.5) | 2.6 (1.7, 4.1) | 2.3 (1.7, 3.2) | 0.096 | |
Foetal heartbeat | Present | 34 (28.3%) | 38 (35.8%) | 87 (39.4%) | < 0.001 |
Absent | 72 (60.0%) | 62 (58.5%) | 132 (59.7%) | ||
Missing | 14 (11.7%) | 6 (5.7%) | 2 (0.9%) | ||
Myometrial thickness of uterine scar (mm) | 3.7 (3.0, 4.2) | 3.8 (3.0, 5.0) | 3.8 (3.0, 4.6) | 0.153 | |
β-hCG before treatment (mIU/ml) | 19,486.0 (3039.6, 51,123.3) | 22,543.0 (12,817.0, 60,586.3) | 24,493.5 (10,371.8, 46,995.0) | 0.184 | |
HGB before surgery (g/L) | 125.0 (114.5, 135.0) | 124.0 (119.0, 133.0) | 122.0 (113.0, 130.0) | 0.102 | |