Distribution of characteristics of participants by no depressive symptoms and with depressive symptoms in the past 2 weeks
| Characteristics | No depressive symptoms % (95% CI) | With depressive symptoms % (95% CI) | P value | |
| Age (in years)* | 66.5 (65.7 to 67.2) | 64.3 (61.8 to 66.8) | 0.098 | |
| Male sex | 56.0 (52.8 to 59.2) | 42.7 (35.3 to 50.1) | 0.002 | |
| Educational level | Low | 50.5 (47.1 to 53.9) | 66.2 (60.0 to 72.4) | <0.001† |
| Moderate | 40.1 (36.6 to 43.6) | 29.5 (23.5 to 35.6) | ||
| High | 9.4 (7.9 to 10.8) | 4.3 (2.1 to 6.4) | ||
| Social support | Low | 18.8 (16.2 to 21.3) | 41.8 (34.6 to 49.0) | <0.001† |
| Moderate | 56.6 (53.7 to 59.5) | 40.9 (33.2 to 48.7) | ||
| High | 24.6 (21.9 to 27.4) | 17.3 (11.4 to 23.1) | ||
| Obesity | 39.9 (36.9 to 43.0) | 53.7 (46.9 to 60.5) | <0.001 | |
| Smoking | 14.4 (12.0 to 16.8) | 27.2 (20.5 to 33.8) | <0.001 | |
| Risky alcohol consumption | 12.9 (10.8 to 15.0) | 9.8 (6.0 to 13.7) | 0.201 | |
| Physical inactivity | 64.8 (61.5 to 68.1) | 78.2 (71.2 to 85.2) | 0.002 | |
| Diabetes duration (in years) | <5 | 29.1 (26.4 to 31.7) | 29.7 (23.4 to 35.9) | 0.763† |
| 5–15 | 42.7 (39.7 to 45.7) | 39.8 (32.6 to 47.1) | ||
| ≥15 | 28.2 (25.2 to 31.2) | 30.5 (24.1 to 37.0) |
*Mean (95% CI).
†Trend test.