Table 3.
Crude and Adjusted ORs for the Associations between the DCS Model, Low Social Support (SS), the ERI Model and Overcommitment (OC), and Depression (n=5 338)
| Variables | n (%) | Crude OR (95% CI) | Adj OR (95% CI)* | Adj OR (95% CI)** |
|---|---|---|---|---|
| DCS model (psychological demands) | ||||
| 1st tertile (low) | 378 (20.5) | 1.00 | 1.00 | 1.00 |
| 2nd tertile (medium) | 496 (28.7) | 1.56 (1.34–1.82)b | 1.23 (1.05–1.45)a | 1.16 (0.98–1.36) |
| 3rd tertile (high) | 826 (46.8) | 3.41 (2.95–3.95)b | 1.77 (1.50–2.09)b | 1.54 (1.30–1.83)b |
| P<0.001 | ||||
| DCS model (physical demands) | ||||
| 1st tertile (low) | 345 (20.0) | 1.00 | 1.00 | 1.00 |
| 2nd tertile (medium) | 499 (27.8) | 1.54 (1.32–1.80)b | 1.21 (1.03–1.43)a | 1.13 (0.95–1.33) |
| 3rd tertile (high) | 856 (47.2) | 3.59 (3.09–4.17)b | 1.94 (1.64–2.30)b | 1.79 (1.51–2.12)b |
| P<0.001 | ||||
| Low social support | ||||
| 1st tertile (high) | 422 (20.5) | 1.00 | 1.00 | 1.00 |
| 2nd tertile (medium) | 358 (27.1) | 1.44 (1.22–1.69)b | 1.18 (0.99–1.40) | 1.12 (0.94–1.33)c |
| 1.13 (.095–1.34)d | ||||
| 3rd tertile (low) | 920 (46.9) | 3.42 (2.98–3.93)b | 2.02 (1.73–2.37)b | 1.85 (1.57–2.17)b,c |
| 1.91 (1.63–2.24)b,d | ||||
| P<0.001 | ||||
| Effort-reward imbalance model | ||||
| ERI model | ||||
| 1st tertile (low) | 346 (18.0) | 1.00 | 1.00 | 1.00 |
| 2nd tertile (medium) | 472 (29.2) | 1.88 (1.61–2.21)b | 1.49 (1.26–1.76)b | 1.34 (1.13–1.59)b |
| 3rd tertile (high) | 882 (49.0) | 4.38 (3.77–5.08)b | 2.08 (1.76–2.47)b | 1.73 (1.44–2.08)b |
| P<0.001 | ||||
| Overcommitment | ||||
| 1st tertile (high) | 402 (22.2) | 1.00 | 1.00 | 1.00 |
| 2nd tertile (medium) | 497 (29.6) | 1.48 (1.27–1.72)b | 1.39 (1.18–1.63)b | 1.28 (1.09–1.51)b |
| 3rd tertile (low) | 801 (43.4) | 2.69 (2.33–3.11)b | 1.91 (1.63–2.23)b | 1.60 (1.35–1.89)b |
| P<0.001 |
Note.
*
Adjusted for gender, age, educational level, job satisfaction, negative affectivity, subjective health status, medical histories in the past six months, and shiftwork.
**
The DC model was additionally adjusted for SS; the SS scale was additionally adjusted for the DC model. Accordingly, The ERI model was additionally adjusted for OC; the OC scale was additionally adjusted for the ERI model.
a
P<0.05,
b
P<0.01,
c
adjusted for the DC model of psychological demands,
d
adjusted for the DC model of physical demands.