Table 2.

Univariate logistic regression for significant mental dysfunctions (GHQ12 >  = 12) among spine surgeons. OR – odds ratio, CI – confidence interval

Factor	OR (95% CI)	p-value
Gender (male vs. female)	1.40 (0.89–2.21)
Age (per year)*	0.96 (0.95–0.98)	< 0.001
Number of surgeries/year (per category, as in Fig. 3)*	0.68 (0.58–0.80)	< 0.001
Workplace
(private vs. university hospital private vs. non-university hospital)	1.03 (0.56–1.89) 1.05 (0.59–1.84)
Orthopedic vs. Neurosurgery	1.36 (0.93–1.99)
Family status (single vs. married/partner) †*	3.28 (1.89–5.69)	< 0.001
Diagnosed mental illness* (yes vs. no?)	2.75 (1.34–5.66)	0.006
Job category
(chairman vs. resident)* (senior physician vs. resident)* (certified physician vs. resident)*	0.26 (0.14–0.49) 0.37 (0.20–0.67) 0.41 (0.21–0.79)	< 0.001 0.001 0.008
Number of working hours (per week?)*	1.02 (1.004–1.03)	0.014
SF-8 Mental Composite score (per 1 point)*	0.82 (0.80–0.85)	< 0.001
SF-8 Physical Composite score (per 1 point)*	0.92 (0.90–0.95)	< 0.001
BRS Score (per 1 point)*	0.24 (0.17–0.33)	< 0.001
ASKU Score (per 1 point)*	0.31 (0.21–0.45)	< 0.001
PSS Score (per 1 point)*	1.82 (1.63–2.04)	0.001

^† “single” does not include divorced individuals