Table 2.
Logistic regression of predictors for depression among the survey participants.
| Grouping of variables | Depression (PHQ-9 ≥ 10) n = 105 (27.5%) | No Depression (PHQ-9 < 10) n = 277 (72.5%) | Univariate Crude Odds Ratio (95% CI) | p-Value | Multivariable Adjusted Odds Ratio (95% CI) | p-Value* | |
|---|---|---|---|---|---|---|---|
| Gender | Male | 82 (78.1) | 240 (86.6) | Reference | 1 | ||
| Female | 23 (21.9) | 37 (13.4) | 1.82 (1.02–3.24) | .042 | 1.95 (1.05–3.60) | .034 | |
| Age group | <30 years old | 39 (37.1) | 100 (36.1) | Reference | 1 | ||
| ≥30 years old | 66 (62.9) | 177 (63.9) | 0.96 (0.60–1.52) | .850 | 1.06 (0.64–1.77) | .801 | |
| Marital status | Single | 71 (67.6) | 166 (59.9) | Reference | 1 | ||
| Married | 34 (32.4) | 111 (40.1) | 0.72 (0.45–1.15) | .167 | 0.87 (0.51–1.48) | .611 | |
| Level of residency | R1 | 24 (22.9) | 70 (25.3) | 1.46 (0.71–2.87) | .315 | 1.33 (0.62–2.85) | .460 |
| R2 | 32 (30.5) | 61 (22.0) | 2.07 (1.08–3.97) | .028 | 2.00 (0.99–4.04) | .053 | |
| R3 | 29 (27.6) | 67 (24.2) | 1.71 (0.89–3.29) | .109 | 1.66 (0.83–3.31) | .149 | |
| R4 | 20 (19.0) | 79 (28.5) | Reference | 1 | |||
| Training EMC | Level 1 | 58 (55.2) | 130 (46.9) | Reference | 1 | ||
| Level 2, others | 47 (44.8) | 147 (53.1) | 0.73 (0.46–1.15) | .175 | 0.60 (0.37–0.96) | .035 | |
| Weekly hours worked | <70 h | 58 (55.2) | 156 (56.3) | Reference | 1 | ||
| ≥70 h | 47 (44.8) | 121 (43.7) | 1.05 (0.67–1.64) | .849 | 0.68 (0.40–1.16) | .158 | |
| Monthly night duty/shift | Night duty <11 | 54 (51.4) | 186 (97.1) | Reference | 1 | ||
| Night duty ≥11 | 51 (48.6) | 91 (32.9) | 1.93 (1.22–3.05) | .005 | 1.97 (1.17–3.31) | .010 | |
| Flexibility of shift trade | Yes | 61 (58.1) | 209 (75.5) | Reference | 1 | ||
| No | 44 (41.9) | 68 (24.5) | 2.22 (1.38–3.56) | .001 | 2.12 (1.25–3.60) | .005 |
†Adjusted by gender, age group, marital status, level of residency and training hospital, and working strength (weekly hours and monthly night duty).