| Variable | N | P-value |
| Marital status |
|
|
| Single | 92 | 0.053 |
| Married | 108 |
|
| Gender |
|
|
| Male | 136 | 0.318 |
| Female | 64 |
|
| Level of education |
|
|
| BSc | 184 | 0.445 |
| MSN | 16 |
|
| Special surgical related training course |
|
|
| Yes | 50 | 0.001 |
| No | 150 |
|