Table 1.
Demographic characteristics of ARIC inception cohort participants by vital status and assessment type
| Characteristic | Deceased before NCS | Completed NCS in-person assessment | TICS-m assessment | Informant call assessment | At least one hospitalization or death | No diagnostically useful information |
|---|---|---|---|---|---|---|
| n | 5031 | 6471 | 1461 | 505 | 1777 | 499 |
| % Women | 45 | 59 | 66 | 59 | 58 | 62 |
| % African-American | 33 | 24 | 24 | 29 | 26 | 27 |
| Age at visit 5∗ | — | 75.3 (5.2) | 76.7 (5.6) | 79.6 (5.7) | 77.9 (5.7) | 75.5 (5.5) |
| Age at visit 1∗ | 56.9 (5.5) | 52.1 (5.2) | 53.4 (5.5) | 56.3 (5.6) | 54.7 (5.7) | 52.4 (5.4) |
| < High school education, % | 34 | 15 | 19 | 36 | 27 | 20 |
| High School graduate or equivalent, % | 38 | 42 | 47 | 33 | 41 | 44 |
| ≥1-y college, % | 28 | 43 | 33 | 30 | 32 | 35 |
| APOE ε4: one allele, % | 30 | 27 | 26 | 36 | 29 | 27 |
| Two alleles, % | 3 | 2 | 2 | 5 | 3 | 2 |
| V2 DWRT Z-score∗ | −0.29 (1.04) | 0.17 (0.95) | 0.12 (0.98) | −0.14 (0.93) | −0.04 (0.98) | 0.13 (0.94) |
| V2 DSST Z-score∗ | −0.39 (1.01) | 0.25 (0.95) | 0.12 (0.92) | −0.28 (0.98) | −0.06 (0.92) | 0.16 (0.96) |
| V2 WFT Z-score∗ | −0.19 (1.03) | 0.15 (0.98) | 0.02 (0.96) | −0.11 (1.04) | −0.09 (0.95) | 0.03 (0.99) |
Abbreviations: ARIC, Atherosclerosis Risk in Communities study; TICS-m, telephonic instrument of cognitive status-modified; APOE, apolipoprotein E.
NOTE. Data are missing for the following covariates: education (n = 26); APOE ε4 (n = 680); DWRT (n = 1582); DSST (n = 1632); and WFT (n = 1602). The columns are mutually exclusive and hierarchically defined.
∗
Mean (standard deviation).