Table I.
Demographic Characteristics of the Sample
| Demographic Variable | N | M | SD | Range |
|---|---|---|---|---|
| All Subjects | ||||
| Lifetime Education | 1483 | 13.80 | 2.11 | 5, 30 |
| Occupation | 1477 | 5.47 | 1.87 | 0, 9 |
| Ethnicity (% white non-Hispanic) | 1484 | 88.10 | – | – |
| Wave 1 | ||||
| Age | 1290 | 51.08 | 2.44 | 51.08, 60.67 |
| Depression Symptoms | 1283 | 8.40 | 8.22 | 0, 52 |
| Wave 2 | ||||
| Age | 1207 | 61.72 | 2.45 | 56.00, 66.92 |
| Depression Symptoms | 1195 | 7.41 | 8.11 | 0, 53 |
Note: Lifetime education was the number of years of school completed. Occupation was based on the Hollingshead Four-Factor index (Hollingshead, 1975), from 0 (unemployed) to 9 (major professionals). Depression symptoms were measured with the Center for Epidemiologic Studies – Depression Scale (Radloff, 1977), with scores above 15 indicating risk for clinical depression.