Table 1 Factors associated with postoperative hypothermia
Item | Postoperative hypothermia | p-value | |
|---|---|---|---|
Yes (n = 88) | No (n = 654) | ||
Age (years) | 0.009 | ||
< 60 | 28 (8.4%) | 305 (91.6%) | |
≥ 60 | 60 (14.7%) | 349 (85.3%) | |
Sex | 0.282 | ||
Male | 46 (13.2%) | 302 (86.8%) | |
Female | 42 (10.7%) | 352 (89.3%) | |
Body mass index (kg/m 2 ) | 0.388 | ||
< 18.5 (underweight) | 8 (15.4%) | 44 (84.6%) | |
18.5–24.9 (normal weight) | 39 (10.0%) | 350 (90.0%) | |
25-29.9 (overweight) | 28 (13.0%) | 187 (87.0%) | |
≥ 30 (obese) | 13 (15.1%) | 73 (84.9%) | |
ASA physical status | 0.035 | ||
I | 15 (10.8%) | 124 (89.2%) | |
II | 35 (9.4%) | 337 (90.6%) | |
III | 36 (16.9%) | 189 (84.9%) | |
IV | 2 (33.3%) | 4 (66.7%) | |
Type of surgery | 0.066 | ||
Head, neck, breast surgery | 14 (7.9%) | 164 (92.1%) | |
Vascular surgery | 11 (9.7%) | 102 (90.3%) | |
General surgery | 30 (12.0%) | 220 (88.0%) | |
Urology | 33 (16.4%) | 168 (83.6%) | |
Intraabdominal surgery | 31 (13.7%) | 195 (86.3%) | 0.300 |
Anesthesia technique | 0.624 | ||
General anesthesia | 63 (12.1%) | 456 (87.9%) | |
Regional anesthesia | 10 (9.1%) | 100 (90.9%) | |
Intravenous sedation | 9 (15.8%) | 48 (84.2%) | |
Combined general–regional anesthesia | 6 (10.7%) | 50 (89.3%) | |
Preoperative hypothermia | 2 (66.7%) | 1 (33.3%) | 0.039 |
Intraoperative hypothermia (n = 121) | 15 (17.4%) | 71 (82.6%) | 0.233 |
Duration of surgery (min) | 67.5 [40-128.5] | 75 [35-121.25] | 0.636 |
Estimated blood loss (mL) | 10 [5, 50] | 15 [5, 52.5] | 0.384 |
Intraoperative transfusion | 4 (25%) | 12 (75%) | 0.110 |
Intraoperative colloid administration | 3 (27.3%) | 8 (72.7%) | 0.132 |
Intravenous fluid administration (mL) | 450 [250–700] | 445 [250–750] | 0.518 |
Surgical fluid irrigation (mL) | 100 [0-1000] | 65 [0-662.5] | 0.189 |
Forced air warming | 62 (11.7%) | 470 (88.3%) | 0.783 |
Intraoperative temperature monitoring | 17 (14.0%) | 104 (86.0%) | 0.415 |