Table 3. Estimates of linear regression for predictive factors of working posture .
| Variables | Regression coefficient | 95% CI | P value | |
| Lower bound | Upper bound | |||
| Gender | 0.006 | |||
| Male | -1.012 | -1.728 | -0.295 | 0.006 |
| Female | Reference | |||
| Type of operating room | <0.001 | |||
| Orthopedic | -1.228 | -2.051 | -0.405 | 0.004 |
| General | -2.014 | -2.792 | -1.236 | 0.0001 |
| Skin and burns | -2.173 | -3.876 | -0.470 | 0.013 |
| Gynecology | 1.444 | 0.498 | 2.389 | 0.003 |
| Pediatric | -1.069 | -2.143 | 0.006 | 0.051 |
| Cardiac | Reference | |||
| Daily exercise | 0.858 | |||
| Yes | -0.071 | -0.852 | 0.711 | 0.858 |
| No | Reference | |||
| Age | 0.013 | -0.084 | 0.110 | 0.790 |
| Work experience | 0.007 | -0.091 | 0.100 | 0.890 |
| Number of shifts | 0.023 | -0.029 | 0.079 | 0.382 |