Table 1. Demographic characteristics of patients (n = 300) .
| Variable | No. | % |
| Surgery type | ||
| General | 57 | 19 |
| ENT (ear, nose and throat) | 83 | 27.7 |
| Urology | 50 | 16.7 |
| Neurology | 37 | 12.3 |
| Jaw and Face | 13 | 4.3 |
| Thorax | 35 | 11.7 |
| Orthopaedic | 5 | 1.7 |
| Kidney transplant | 7 | 2.3 |
| Trauma | 13 | 4.3 |
| Gender | ||
| Male | 173 | 57.7 |
| Female | 127 | 42.3 |
| Income level | ||
| Low | 10 | 3.4 |
| Moderate | 124 | 42.0 |
| High | 161 | 54.6 |
| Marital status | ||
| Single | 65 | 11.7 |
| Married | 235 | 78.3 |
| Educational level | ||
| Illiterate | 96 | 32.0 |
| Primary | 70 | 23.3 |
| Secondary | 99 | 33.0 |
| University | 35 | 11.7 |
| Insurance type | ||
| Social security insurance | 106 | 35.0 |
| Health service | 21 | 7.0 |
| Rural insurance | 64 | 21.3 |
| Armed forces insurance | 19 | 6.3 |
| Health insurance | 69 | 23.0 |
| Others | 21 | 7.0 |
| Age | ||
| Mean (SD) = 44.99 (17.53) | – | – |
| Hospitalized days | ||
| Mean (SD) = 2.91 (2.75) | – | – |
| Duration of hospitalization (day) | ||
| Mean (SD) = 1.31 (0.68) | – | – |