Table 5. ORs and 95% CIs for impaired fasting glycemia and job stress by shift work.

Job stress		Non-shift work (n = 2,686)			Shift work (n = 3,200)
		Model 1	Model 2	Model 3	Model 1	Model 2	Model 3
		OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Physical environment
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	0.87 (0.70–1.06)	0.95 (0.76–1.17)	0.99 (0.80–1.23)	0.89 (0.75–1.05)	0.99 (0.84–1.18)	1.04 (0.87–1.23)
Job demand
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	1.43 (1.13–1.82)**	1.42 (1.12–1.82)**	1.42 (1.11–1.81)**	0.96 (0.65–1.42)	0.95 (0.64–1.42)	0.92 (0.61–1.37)
Insufficient job control
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	0.78 (0.51–1.20)	0.94 (0.61–1.46)	0.97 (0.62–1.51)	0.91 (0.72–1.17)	1.09 (0.85–1.40)	1.10 (0.85–1.42)
Interpersonal conflict
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	1.13 (0.82–1.57)	0.92 (0.66–1.29)	0.89 (0.64–1.26)	1.33 (1.00–1.77)	1.18 (0.88–1.59)	1.19 (0.88–1.61)
Job insecurity
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	1.09 (0.85–1.39)	1.03 (0.79–1.32)	0.95 (0.73–1.23)	0.96 (0.76–1.20)	0.94 (0.74–1.19)	0.90 (0.71–1.15)
Organizational system
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	0.93 (0.83–1.19)	0.90 (0.70–1.15)	0.91 (0.71–1.17)	0.89 (0.71–1.12)	0.84 (0.66–1.06)	0.81 (0.64–1.04)
Lack of reward
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	0.73 (0.43–1.25)	0.90 (0.52–1.55)	0.95 (0.55–1.65)	0.73 (0.43–1.24)	0.80 (0.47–1.37)	0.86 (0.50–1.47)
Occupational climate
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	0.94 (0.73–1.21)	1.05 (0.81–1.36)	1.02 (0.79–1.33)	1.04 (0.76–1.41)	1.06 (0.77–1.45)	1.10 (0.80–1.51)
Total job stress score
	Low risk	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)	1.00 (reference)
	High risk	0.80 (0.59–1.10)	0.90 (0.65–1.25)	0.90 (0.64–1.25)	0.94 (0.72–1.24)	1.02 (0.77–1.34)	1.03 (0.78–1.36)

OR: odds ratio; CI: confidence interval; IFG: impaired fasting glycemia.

Model 1: crude; Model 2: adjusted for age, BMI; Model 3: adjusted for Model 2 + HTN, dyslipidemia, alcohol consumption, smoking, regular exercise.

**p < 0.01.