Table 1.
Characteristics of NHANES Respondents
| Frequency (%) | PHQ-9 Total Score mean (SD) |
PHQ-9 Total Score ≥ 10 (%) |
PHQ-9 Cognitive/Affective Score (range: 0–18) mean (SD) |
PHQ-9 Somatic Score (range 0–9) mean (SD) |
Correlation between Cognitive/Affective and Somatic Scores |
|
|---|---|---|---|---|---|---|
| Sex (n = 31,366) | ||||||
| Women | 15,935 (50.8) | 3.72 (4.57) | 11.0 | 1.67 (2.80) | 2.05 (2.23) | 0.65 |
| Men | 15,431 (49.2) | 2.67 (3.87) | 6.5 | 1.24 (2.40) | 1.43 (1.90) | 0.61 |
| Race/Ethnicity (n = 30,179) | ||||||
| Non-Hispanic White | 13,455 (42.9) | 3.19 (4.19) | 8.4 | 1.38 (2.55) | 1.81 (2.09) | 0.63 |
| Non-Hispanic Black | 6,793 (21.7) | 3.21 (4.35) | 9.1 | 1.48 (2.65) | 1.73 (2.16) | 0.63 |
| Non-Hispanic Asian | 1,745 (5.6) | 2.23 (3.07) | 3.3 | 1.00 (1.90) | 1.22 (1.58) | 0.55 |
| Mexican American | 5,205 (8.6) | 3.15 (4.20) | 8.6 | 1.51 (2.59) | 1.64 (2.05) | 0.64 |
| Other Hispanic | 2,981 (12.2) | 3.80 (4.93) | 12.2 | 1.88 (3.11) | 1.92 (2.24) | 0.69 |
| Education Level (n = 31,344) | ||||||
| Less than 9th grade | 3,156 (10.1) | 3.77 (5.03) | 13.2 | 1.95 (3.17) | 1.82 (2.31) | 0.68 |
| 9th to 12th grade (no diploma) | 5,017 (16.0) | 3.92 (4.79) | 12.4 | 1.92 (3.01) | 2.00 (2.27) | 0.64 |
| High school graduate/GED equivalent | 7,410 (23.6) | 3.31 (4.32) | 9.0 | 1.51 (2.65) | 1.81 (2.14) | 0.63 |
| Some college or associate degree | 9,101 (29.0) | 3.21 (4.22) | 8.6 | 1.41 (2.54) | 1.81 (2.12) | 0.64 |
| College graduate or above | 6,660 (21.2) | 2.26 (3.19) | 3.8 | 0.89 (1.88) | 1.37 (1.70) | 0.59 |
Note. The cognitive/affective score was computed as the sum of items 1, 2, 6, 7, 8, and 9, and the somatic score was computed as the sum items 3, 4, and 5.NHANES = National Health and Nutrition Examination Survey. PHQ-9 = Patient Health Quesionnaire-9