Table 2 The characteristics of the OHSS group patients
Characteristic | Moderate group (n = 83) | Severe-to-critical group (n = 302) | Matched control group 1:4 (n = 1540) | P1 value1-2 | P2 value1-3 | P3 value2-3 |
|---|---|---|---|---|---|---|
E2 level on hCG trigger day (pg/ml) | 4739.0 ± 1754.6 | 4415.2 ± 1935.7 | / | 0.171 | / | / |
Hospital days (days) | 9.3 ± 4.7 | 13.8 ± 7.2 | / | < 0.001 | / | / |
DT (days) | 14.0 + 3.3 | 13.1 + 4.7 | / | 0.136 | / | / |
HCT (%) | 42.0 ± 4.1 | 44.9 ± 5.7 | / | < 0.001 | / | / |
WBC (× 109) | 14.0 ± 4.4 | 15.4 ± 4.8 | / | 0.012 | / | / |
Albumin (g/L) | 37.0 ± 4.2 | 36.7 ± 5.0 | / | 0.574 | / | / |
Surgical treatment, no. (%) | 14/83 (16.9) | 133/303 (44.0) | / | < 0.001 | / | / |
Miscarriages, no. (%) | 9/83 (10.8) | 38/302 (12.6) | 209/1540 (13.6) | 0.668 | 0.478 | 0.645 |
Live birth delivery rate, no.(%) | 74/83 (89.2) | 264/302 (87.4) | 1331/1540 (86.4) | 0.668 | 0.478 | 0.645 |
Obstetric complications | 6/83 (7.2) | 21/302 (7.0) | 49/1540 (3.2) | 0.931 | 0.058 | 0.002 |
Neonatal complications | 6/108 (5.6) | 12/395 (3.0) | 40/1946 (2.1) | 0.240 | 0.031 | 0.227 |
Premature delivery | 15/74 (20.3) | 52/264 (19.7) | 262/1331 (19.7) | 0.913 | 0.902 | 0.996 |
Average neonatal weight (g) | 2698.8 ± 666.2 | 2828.6 ± 563.2 | 2853.6 ± 659.6 | 0.042 | 0.018 | 0.436 |
Singletons | 41 /74 (55.4) | 133/264 (44.0) | 721/1331 (54.2) | 0.444 | 0.835 | 0.259 |
Multiples | 33/74 (44.6) | 131/264 (49.6) | 610/1331 (45.8) | 0.444 | 0.835 | 0.259 |
Duration of gestation (weeks) | 37.8 ± 2.8 | 38.1 ± 2.0 | 38.7 ± 2.1 | 0.435 | < 0.001 | 0.001 |
LBW, no.(%) | 30/108 (27.8) | 98/395 (24.8) | 528/1946 (27.1) | 0.530 | 0.883 | 0.342 |