Table 3.

Multivariate logistic regression analysis for significant mental distress (GHQ12 >  = 12). OR – odds ratio, CI – confidence interval

Factor*	OR (95% CI)	p-value
Job category
(chairman vs. resident) (senior physician vs. resident) (certified physician vs. resident)	0.58 (0.22–1.53) 0.26 (0.10–0.66) 0.50 (0.18–1.38)	0.272  < 0.001 0.181
SF-8 Composite Mental score	0.86 (0.83–0.90)	< 0.001
SF-8 Composite Physical score	0.97 (0.93–1.01)	0.098
BRS Score	0.53 (0.33–0.84)	0.006
PSS Score	1.54 (1.33–1.77)	< 0.001

^*a backward conditional method was used for the factor selection. The factors that were statistically significant in a univariate analysis (i.e. age, number of surgeries, family status, career level, number of working hours, SF-8 composite mental and physical scores, BRS, ASKU and PSS scores) were used for a multivariate model. The table represents values in the final (7^th) step of backward conditional logistic regression, Nagelkerke R Square 0.621