Table 1 Characteristics of the US adult population (≥20 y)
Characteristics | No Depressive Symptoms (n = 8888) | Depressive Symptoms (n = 245) | P value |
|---|---|---|---|
Age (Mean (95% CI)) | 46.9 (46.1, 47.8) | 46.6 (45.1, 48.1) | NS |
Age categories (% (95% CI)) | |||
 ≥ 20 to < 40 y | 36.7 (34.8, 38.7) | 31.1 (23, 39.2) | < 0.05 |
 ≥ 40 to < 65 y | 46.0 (44.3, 47.7) | 61.8 (52.1, 71.5) | |
 ≥ 65 y | 17.3 (15.5, 19.0) | 7.1 (4.0, 10.2) | |
Sex | |||
 Men | 49.6 (48.6, 50.6) | 31.7 (25.2, 38.1) | < 0.05 |
 Women | 50.4 (49.4, 51.4) | 68.3 (61.9, 74.8) | |
Ethnicity | |||
 Non-Hispanic White | 72.1 (67.6, 76.6) | 65.0 (55.9, 74.2) | < 0.05 |
 Non-Hispanic Black | 10.8 (8.1, 13.5) | 17.3 (10.5, 24.2) | |
 Mexican American | 7.9 (6.1, 9.8) | 7.3 (3.7, 10.9) | |
 Others | 9.2 (7.3, 11) | 10.3 (5.1, 15.5) | |
Education | |||
 < High school | 18.2 (16, 20.4) | 29.5 (23.4, 35.5) | < 0.05 |
 High school | 25.0 (23.3, 26.7) | 31.0 (21.6, 40.4) | |
 College | 56.8 (53.4, 60.1) | 39.5 (30.6, 48.4) | |
Income | |||
 < $20,000 | 15.5 (13.8, 17.3) | 35.5 (30.5, 40.6) | < 0.05 |
 $20,000-44,999 | 29.8 (27.6, 32.0) | 38.8 (30.7, 47.0) | |
 ≥ $45,000 | 54.7 (51.4, 57.9) | 25.6 (18.4, 32.9) | |
Smoking | |||
 None | 51.6 (49.4, 53.7) | 38.4 (28.9, 47.9) | < 0.05 |
 Current | 23.2 (21.4, 25) | 45.1 (35.9, 54.2) | |
 Past | 25.2 (23.8, 26.6) | 16.5 (11.2, 21.9) | |
Alcohol Intake | |||
 < 3 drinks per day | 62.3 (60, 64.6) | 56.1 (44.9, 67.3) | NS |
 ≥ 3 drinks per day | 37.7 (35.4, 40) | 43.9 (32.7, 55.1) | |
Recreational Physical Activity | |||
 None reported | 66.2 (62.6, 69.9) | 84.4 (77.8, 91) | < 0.05 |
 < 500 MET-min/week | 11.4 (10.1, 12.7) | 6.1 (2, 10.2) | |
 ≥ 500 MET-min/week | 22.3 (19.7, 24.9) | 9.5 (5.4, 13.6) | |
BMI categories (kg/m2) | |||
 < 18.5 | 1.6 (1.2, 2.0) | 1.1 (0.0, 2.2) | NS |
 ≥ 18.5 - < 25 | 30.7 (29.0, 32.4) | 24.3 (17.5, 31.2) | |
 ≥ 25 - < 30 | 33.7 (32.5, 35.0) | 31.5 (25.0, 38.0) | |
 ≥ 30 - < 35 | 19.4 (18.5, 20.4) | 21.9 (14.5, 29.3) | |
 ≥ 35 | 14.5 (13.2, 15.9) | 21.1 (14.2, 28.1) | |