Table 2.
Basic characteristics of the patients
| Characteristics | Mean ± SD |
|---|---|
| Age (year) (min–max) | 54.29 ± 14.45 (18–88) |
| Age groups | n (%) |
| 18–44 years old | 71 (23.7) |
| 45–64 years old | 145 (48.3) |
| 65 years and older | 84 (28.0) |
| Gender | |
| Female | 132 (44.0) |
| Male | 168 (56.0) |
| History of surgery | |
| Yes | 230 (76.7) |
| No | 70 (23.3) |
| Number of previous surgeries (n = 230) | |
| One | 99 (43.04) |
| Two | 59 (25.65) |
| Tree or more | 72 (31.30) |
| Classification of current surgery | |
| Minor surgery | 148 (49.3) |
| Major surgery | 152 (50.7) |
| Type of current surgery | |
| Open surgery | 134 (44.7) |
| Laparoscopic surgery | 166 (55.3) |
| Type of current anesthesia | |
| General anesthesia | 267 (89.0) |
| Epidural anesthesia | 33 (11.0) |
| Pre-operative pain | |
| Yes | 119 (39.7) |
| No | 181 (60.3) |
| Pre-operative pain severity (n = 119) | |
| Between 1 and 3 | 44 (36.97) |
| Between 4 and 6 | 47 (39.49) |
| Between 7 and 10 | 28 (23.53) |