| Characteristics |
Frequency (%) |
| Age (years) |
<25 |
107(27.9%) |
| 25-50 |
205(53.4%) |
| >50years |
72(18.8%) |
| ASA physical status |
I |
280(72.9%) |
| II |
104(27.1%) |
| Sex |
Male |
184(47.9%) |
| Female |
200(52.1%) |
| Preoperative temperature(˚C) |
<36.0°C |
76(19.8%) |
| ≥36.0°C |
308(80.2%) |
| Magnitude of procedure |
Moderate |
84(28.1%) |
| Major |
276(71.9%) |
| Type of anesthesia |
General |
263(68.5%) |
| Spinal |
121(31.5%) |
| Condition of surgery |
Elective |
214(55.7%) |
| Emergency |
170(44.3%) |
| Amount of crystalloid fluids replaced intraoperatively (litre) |
| |
≤2 |
303 (78.9%) |
| >2 |
81(21.1%) |
| Duration of Anesthesia (min) (Range 35 – 230min) |
| |
≤1hr |
57(14.8%) |
| >1hr |
327(85.2%) |
| Duration of Surgery (min) (Range 30 – 210min) |
| |
≤1hr |
121(31.5%) |
| >1hr |
263(68.5%) |
| Operation room temperature |
≤23°C |
309(80.5) |
| >23°C |
75(19.5) |
