Table 2. Comparison of the baseline characteristics of the groups by number of depressive symptoms.
| Parameters | Total samples (n = 853) | Number of depressive symptom profiles | Statistical coefficients | P value | ||||
|---|---|---|---|---|---|---|---|---|
| 5 (n = 270) | 6 (n = 239) | 7 (n = 175) | 8 (n = 107) | 9 (n = 62) | ||||
| Age, mean (SD) yr | 48.4 (15.0) | 47.1 (14.9) | 48.4 (14.7) | 49.8 (15.5) | 50.2 (15.7) | 46.9 (13.0) | F = 1.480 | 0.206 |
| Women, n (%) | 646 (76.0) | 206 (76.6) | 183 (77.2) | 135 (77.1) | 78 (72.9) | 44 (71.0) | χ2 = 1.792 | 0.774 |
| Married, n (%) | 533 (68.8) | 173 (68.1) | 152 (70.4) | 108 (70.1) | 65 (68.4) | 35 (62.5) | χ2 = 1.472 | 0.832 |
| Education, mean (SD) yr | 10.4 (4.7) | 10.8 (4.3) | 10.3 (4.4) | 10.3 (4.8) | 9.9 (4.3) | 10.5 (4.6) | F = 0.931 | 0.445 |
| Employed, n (%) | 586 (75.6) | 197 (77.6) | 170 (78.7) | 115 (74.7) | 67 (70.5) | 37 (66.1) | χ2 = 5.812 | 0.214 |
| Monthly income < 2,000 USD, n (%) | 383 (49.0) | 116 (30.3) | 117 (30.5) | 88 (54.7) | 41 (40.6) | 21 (37.5) | χ2 = 9.805 | 0.044 |
| National health insurance, n (%) | 775 (90.9) | 249 (92.2) | 219 (91.6) | 161 (92.0) | 94 (87.9) | 52 (83.9) | χ2 = 5.860 | 0.210 |
| Religious affiliation, n (%) | 531 (62.5) | 179 (66.3) | 142 (59.7) | 104 (60.1) | 69 (64.5) | 37 (59.7) | χ2 = 3.286 | 0.511 |
| Age-at-onset,* mean (SD) yr | 37.4 (16.0) | 36.4 (15.6) | 36.5 (15.3) | 40.9 (16.3) | 37.1 (18.0) | 36.6 (15.5) | F = 1.094 | 0.359 |
| History of depression, n (%) | 373 (44.2) | 115 (43.1) | 95 (40.1) | 72 (41.6) | 52 (49.5) | 39 (62.9) | χ2 = 12.234 | 0.016 |
| Medical comorbidity, n (%) | 269 (31.5) | 82 (30.4) | 85 (35.6) | 50 (28.6) | 35 (32.7) | 16 (27.4) | χ2 = 3.234 | 0.519 |
| Family history of depression, n (%) | 117 (13.7) | 33 (12.2) | 31 (13.0) | 24 (13.7) | 19 (17.8) | 10 (16.1) | χ2 = 2.403 | 0.662 |
| Previous suicidal attempt, n (%) | 189 (22.2) | 52 (19.3) | 54 (22.6) | 37 (21.1) | 26 (24.3) | 20 (32.3) | χ2 = 5.398 | 0.249 |
| Outpatient enrollment, n (%) | 665 (78.0) | 203 (75.2) | 190 (79.5) | 144 (82.3) | 84 (78.5) | 44 (71.0) | χ2 = 5.227 | 0.265 |
*n = 371. n, number of subjects.