Table 1.
Sample Characteristics of Long Life Family Study (LLFS) Study Participants (N = 1,142)
| Characteristics | N | % or M |
|---|---|---|
| Mean age at interview (SD) | 1,142 | 90.7 (5.6)a |
| Age at interview (age group) | ||
| <85 | 172 | 15.1 |
| 85–89 | 238 | 20.8 |
| 90–94 | 450 | 39.4 |
| 95 and older | 282 | 24.7 |
| Sex | ||
| Male | 557 | 48.8 |
| Female | 585 | 51.2 |
| Educational attainment | ||
| Less than high school | 215 | 18.8 |
| High school graduate/had GED | 291 | 25.5 |
| Some college/technical training | 303 | 26.5 |
| 4-year college degree or more | 329 | 28.8 |
| Missing | 4 | 0.4 |
| Region of birth | ||
| New England | 303 | 26.5 |
| New Jersey, New York, or Pennsylvania | 537 | 47.0 |
| Other U.S. states | 250 | 21.9 |
| Foreign born | 51 | 4.5 |
| Missing | 1 | 0.1 |
| Number of possible census searches | ||
| One | 321 | 28.1 |
| Two or three | 821 | 71.9 |
| Matched to 1910, 1920, or 1930 census | 1,012 | 88.6 |
Note: a SD in parentheses.