Table 1.
Baseline Participant Characteristics by Study
| Characteristics | EAS (n= 1,889) | MAP/MARS (n= 2,172) | HRS (n= 15,841) | NHATS (n=8,494) |
|---|---|---|---|---|
| Agea | ||||
| 65–69 | Mage = 78.09 (5.34) | Mage = 78.65 (7.26) | Mage = 70.27 (6.48) | 1986 (23.38) |
| 70–74 | 1957 (23.04) | |||
| 75–79 | 1736 (20.44) | |||
| 80–84 | 1525 (17.95) | |||
| 85–89 | 827 (9.74) | |||
| 90+ | 463 (5.45) | |||
| Education | ||||
| Less than high school, n (%) | 403 (21.33) | 135 (6.22) | 4043 (25.52) | 1556 (18.32) |
| High school, n (%) | 559 (29.59) | 477 (21.96) | 5409 (34.15) | 2438 (28.70) |
| Some college, n (%) | 373 (19.75) | 588 (27.07) | 3316 (20.93) | 2371 (27.91) |
| College and beyond, n (%) | 553 (29.27) | 972 (44.75) | 3070 (19.38) | 2124 (25.01) |
| Missing, n (%) | 1 (00.05) | - | 3 (00.02) | 5 (00.06) |
| Gender | ||||
| Female, n (%) | 1172 (62.04) | 1625 (74.82) | 9115 (57.54) | 4897 (57.65) |
| Male, n (%) | 716 (37.90) | 547 (25.18) | 6726 (42.46) | 3597 (42.35) |
| Missing, n (%) | 1 (0.05) | - | - | - |
| Race | ||||
| White, n (%) | 1339 (70.88) | 1472 (67.77) | 13785 (87.02) | 6640 (78.17) |
| Black, n (%) | 550 (29.12) | 700 (32.23) | 2056 (12.98) | 1854 (21.83) |
| Income | ||||
| Less than $15,000, n (%) | 409 (21.65) | 275 (12.66) | 2853 (18.01) | 4545 (53.51) |
| $15,001 - $30,000, n (%) | 699 (37.00) | 486 (22.38) | 4305 (27.18) | 1153 (13.57) |
| Greater than $30,000, n (%) | 606 (32.08) | 1225 (56.50) | 8683 (54.81) | 2796 (32.92) |
| Missing, n (%) | 175 (9.26) | 186 (8.56) | - | - |
| Cognitive Status | ||||
| Normal | 1209 (64.00) | 988 (45.49) | 8840 (55.80) | 5129 (60.38) |
| MCI | 680 (36.00) | 1184 (54.51) | 7001 (44.20) | 3365 (39.62) |
| Follow-up years, M (SD) | 2.46 (2.55) | 4.07 (3.68) | 2.49 (2.19) | 2.39 (2.10) |
| Subjective Cognitive Decline, n (% yes) | 369 (19.92) | 1675 (77.12) | 3173 (20.03) | 985 (11.60) |
Note.
a
Age was included as a continuous variable in EAS, MAP/MARS, and HRS.