Table 1. Characteristics of the study population according to major depressive disorder status.
| Characteristic | All N=1,924 | Depression N=154 | No Depression N=1,770 | |
|---|---|---|---|---|
|
| ||||
| n (%) | n (%) | n (%) | P-value** | |
| Mean Age* | 35.9 ± 11.8 | 33.1 ± 10.9 | 36.1 ± 11.9 | |
| Sex | ||||
| Women | 759 (39.4) | 60 (39.0) | 699 (39.5) | 0.897 |
| Men | 1,165 (60.6) | 94 (61.0) | 1071 (60.5) | |
| Age (years) | ||||
| 18-29 | 799 (41.6) | 83 (54.3) | 716 (39.8) | 0.017 |
| 30-39 | 441 (22.9) | 32 (20.9) | 409 (23.6) | |
| 40-49 | 307 (16.0) | 17 (11.1) | 290 (16.5) | |
| 50-59 | 353 (18.4) | 20 (13.1) | 333 (18.9) | |
| ≥60 | 21 (1.1) | 1 (0.6) | 20 (1.2) | |
| Education | ||||
| ≤ High school | 564 (29.3) | 55 (35.7) | 509 (28.8) | 0.069 |
| ≥ College education | 1,360 (70.7) | 99 (64.3) | 1,261 (71.2) | |
| Smoking status | ||||
| Never | 1,670 (86.8) | 126 (81.8) | 1,544 (87.2) | 0.153 |
| Former smoker | 84 (4.4) | 10 (6.5) | 74 (4.2) | |
| Current smoker | 170 (8.8) | 18 (11.7) | 152 (8.6) | |
| Alcohol consumption in past year | ||||
| Non drinker | 435 (22.6) | 25 (16.2) | 410 (23.2) | 0.032 |
| Moderate | 1,353 (70.3) | 112 (72.7) | 1,241 (70.1) | |
| Heavy | 136 (7.1) | 17 (11.1) | 119 (6.7) | |
| Khat use | ||||
| No | 1,758 (91.4) | 137 (89.0) | 1,621 (91.6) | 0.256 |
| Yes | 165 (8.6) | 17 (11.0) | 148 (8.4) | |
| Self-reported health status | ||||
| Excellent/very good/good | 1,161(60.3) | 61 (39.6) | 1,100 (62.2) | <0.001 |
| Poor/fair | 763 (39.7) | 93 (60.4) | 670 (37.8) | |
*
Mean ± standard deviation (SD);
**
P-value from Chi-Square test or Student's t test
Numbers/percentages may not add up to the total number due to missing data.