Table 1.
Demographic data.
| Variables | Before Matching | After Matching | ||||
|---|---|---|---|---|---|---|
| Non-Hypothermia (N = 472) | Hypothermia (N = 188) | p-Value | Non-Hypothermia (N = 156) | Hypothermia (N = 156) | p-Value | |
| Age (years) | 48.2 ± 5.5 | 48.4 ± 5.8 | 0.720 | 47.9 ± 5.2 | 48.6 ± 5.8 | 0.263 |
| Body mass index (kg/m2) | 24.3 ± 2.0 | 21.9 ± 1.4 | 0.000 | 24.4 ± 1.9 | 22.1 ± 1.6 | 0.000 |
| Nasopharyngeal body temperature before anesthesia induction (°C) | 37.1 ± 0.2 | 36.9 ± 0.2 | 0.000 | 37.1 ± 0.2 | 36.9 ± 0.2 | 0.000 |
| Estradiol (pg) | 97.0 ± 81.9 | 74.3 ± 68.4 | 0.000 | 104.5 ± 78.6 | 67.3 ± 65.6 | 0.021 |
| Progesterone (ng) | 5.5 ± 6.7 | 2.5 ± 3.8 | 0.00 | 8.6 ± 8.1 | 1.9 ± 3.1 | 0.001 |
| Phases of the menstrual cycle | 0.114 | 0.000 | ||||
| Follicular | 149 (31.6) | 81 (43.1) | 36 (23.1) | 72 (46.2) | ||
| Luteal | 184 (39.0) | 48 (25.5) | 79 (50.6) | 33 (21.2) | ||
| Menopause | 139 (29.4) | 59 (31.4) | 41(26.3) | 51 (32.7) | ||
| Fresh gas flow rate | 0.002 | 0.001 | ||||
| Low (≤1 L/min) | 280 (59.3) | 70 (37.2) | 123 (78.8) | 42 (26.9) | ||
| High (3 or 4 L/min) | 192 (40.7) | 118 (62.8) | 33 (21.2) | 114 (73.1) | ||
| Type of surgery | 0.000 | 0.000 | ||||
| Laparoscopic subtotal hysterectomy | 126 (26.7) | 18 (9.6) | 27 (28.7) | 10 (10.6) | ||
| Laparoscopically assisted vaginal hysterectomy | 344 (72.9) | 54 (28.7) | 66 (70.2) | 29 (30.9) | ||
| Total laparoscopic radical hysterectomy | 2 (0.4) | 116 (61.7) | 1 (1.1) | 55 (58.5) | ||
| Duration of anesthesia (min) | 77.0 ± 5.6 | 127.4 ± 29.2 | 0.000 | 78.3 ± 13.9 | 126.2 ± 31.2 | 0.000 |
| Duration of surgery (min) | 47.0 ± 5.7 | 97.4 ± 29.2 | 0.000 | 48.4 ± 14.4 | 96.3 ± 31.3 | 0.000 |
| Amount of fluid infused (mL) | 827.3 ± 184.4 | 1305.8 ± 461.6 | 0.000 | 829.5 ± 185.2 | 1302 ± 460.3 | 0.000 |
| Nasopharyngeal body temperature at anesthesia reversal (°C) | 36.2 ± 0.1 | 35.5 ± 0.2 | 0.000 | 36.1 ± 0.1 | 35.5 ± 0.3 | 0.000 |
Values are expressed as mean ± standard deviation or numbers (%).