Table 1 Baseline characteristics of the study population
Characteristic | Hospital A (N = 300) | Hospital B (N = 177) | t /χ² | P | ||
|---|---|---|---|---|---|---|
Age (years) | 29.66 ± 2.27 | 29.56 ± 2.37 | 0.53 | 0.596 | ||
Height (cm) | 162.12 ± 4.73 | 161.97 ± 4.92 | 0.29 | 0.772 | ||
Weight (kg) | 71.25 ± 4.96 | 71.02 ± 4.85 | 0.53 | 0.603 | ||
BMI | 0.79 | 0.674 | ||||
1( BMI < 18.5) | 75(25%) | 45 (25.4%) | ||||
2(18.5 ≤ BMI < 24.9) | 120 (40%) | 70 (39.5%) | ||||
3( BMI ≥ 25) | 105 (35%) | 62(35.1%) | ||||
Alcohol | 39 (13%) | 24(13.5%) | 0.30 | 0.584 | ||
Smoking | 87 (29%) | 47(26.5%) | 0.93 | 0.334 | ||
Gestational age (weeks) | 20.9 | 0.553 | ||||
37 | 82 (9.4%) | 17 (9.6%) | ||||
38 | 57 (19%) | 34 (19.2%) | ||||
39 | 138 (46%) | 82 (46.3%) | ||||
40~ | 75(25%) | 44(24.8%) | ||||
Parity | 1.12 | 0.572 | ||||
Primiparas | 57 (19%) | 34 (19.2%) | ||||
Second pregnancy | 135(45%) | 79 (44.6%) | ||||
Multiparas | 108(36%) | 64 (36.2%) | ||||
Hypertension | 18 (6%) | 11 (6.2%) | ||||
Diabetes | 54 (18%) | 32(18.1%) | ||||
Surgical method | 0.02 | 0.882 | ||||
Intraperitoneal | 240 (80%) | 142 (80.2%) | ||||
Extraperitoneal | 60 (20%) | 35(19.8%) | ||||
Duration of surgery (minutes) | 59.99 ± 5.70 | 60.21 ± 5.57 | -10.5 | 0.06 | ||
Estimated blood loss (ml) | 149.60 ± 23.50 | 148.21 ± 24.93 | 1.36 | 0.0175 | ||
Anesthesia type | 0.15 | 0.700 | ||||
Epidural | 168 (56%) | 100 (56.5%) | ||||
Combined spinal-epidural | 132 (44%) | 77 (43.5%) | ||||
Anesthetic Drugs | 8.28 | 0.056 | ||||
Ropivacaine | 129 (43%) | 76 (42.9%) | ||||
Others | 171 (57%) | 101 (57.1%) | ||||
Esketamine use | 129(43%) | 74 (41.8%) | 0.76 | 0.383 | ||
Time to first PCIA (minutes) | 113.75 ± 17.26 | 110.87 ± 17.18 | 1.40 | 0.162 | ||