Effects of changes in occupational stress on the depressive symptoms of Korean workers in a large company: a longitudinal survey

Table 3 Adjusted odds ratios for depression deterioration by occupational stress level at baseline and occupational stress change among non-depressed group (n = 512)

	Model 1		Model 2		Model 3
	OR	95% CI	OR	95% CI	OR	95% CI
Occupational stress level
1st quartile	1.00	Reference	1.00	Reference
2nd quartile	1.612*	1.025–2.536	1.583	0.977–2.564
3rd quartile	2.653‡	1.594–4.416	2.513‡	1.459–4.331
4th quartile	2.626†	1.404–4.911	2.730†	1.389–5.363
Occupational stress change ^a
Total score	1.044‡	1.024–1.064	1.039‡	1.018–1.062	1.087‡	1.058–1.117
Job demand	1.018†	1.007–1.030	1.025‡	1.014–1.037	1.050‡	1.034–1.065
Insufficient job control	1.018†	1.005–1.031	1.016*	1.003–1.029	1.032‡	1.016–1.048
Interpersonal conflict	1.014*	1.000–1.028	0.999	0.987–1.011	1.008	0.993–1.023
Job insecurity	1.011*	1.002–1.021	1.006	0.998–1.015	1.015†	1.005–1.025
Organizational system	1.020†	1.007–1.033	1.018†	1.004–1.031	1.037‡	1.021–1.053
Lack of reward	1.032‡	1.017–1.047	1.007	0.995–1.019	1.028‡	1.013–1.043
Occupational climate	1.018†	1.003–1.030	1.016*	1.003–1.029	0.999	0.984–1.014

Model 1: Crude model
Model 2: Adjusted for sex, age, smoking history, heavy drinking, adequate physical activity, education, marital status, career, working hours, job task
Model 3: Model 2 + occupational stress score (total or sub-domain) at baseline
^aSubtracted 2015 KOSS score from 2016 KOSS score
*p < 0.05, †p < 0.01, ‡p < 0.001

ISSN: 2052-4374