Table 1 Summary of demographics and clinical characteristics of the population: by self-reported diagnosis cohort
From: A cross-validation of the provisional diagnostic instrument (PDI-4)
Variable | Total Group (N=1,047) | Anxiety (N=218) | Depression (N=221) | ADHD (N=206) | Manic Depressive (N=195) | Control (N=207) |
|---|---|---|---|---|---|---|
Gender (% female) | 59.6% | 59.6% | 59.3% | 51.0% | 66.2% | 62.3% |
Age, years (SD) | 51.4 (16.5) | 50.3 (17.7) | 51.4 (17.1) | 51.5 (14.4) | 52.1 (12.1) | 51.5 (19.7) |
Ethnicity (% Caucasian) | 84.1% | 88.5% | 81.5% | 87.3% | 89.2% | 73.0% |
Education (% completed high school) | 98.5% | 97.6% | 99.5% | 98.5% | 98.5% | 98.5% |
Income (mode) | $35,000 to $49,000 | $35,000 to $49,000 | $35,000 to $49,000 | $50,000 to $74,000 | $35,000 to $49,000 | $35,000 to $49,000 |
PDI-4 GAD, mean (SD) | 7.0 (3.6) | 8.0 (3.5) | 7.2 (3.0) | 7.3 (3.4) | 8.5 (3.3) | 4.2 (3.2) |
PDI-4 MDE, mean (SD) | 5.9 (3.9) | 6.7 (3.8) | 6.5 (3.3) | 5.8 (3.7) | 7.9 (3.9) | 2.9 (2.9) |
PDI-4 ADHD, mean (SD) | 4.9 (3.1) | 4.9 (2.9) | 4.8 (2.7) | 5.8 (2.9) | 6.4 (3.2) | 2.8 (2.5) |
PDI-4 Mania, mean (SD) | 5.2 (3.7) | 4.7 (3.1) | 4.3 (3.1) | 6.4 (3.5) | 7.9 (3.8) | 3.1 (2.9) |