Table 1.
Summary of participating MCR cohorts.
| Variables | EAS | MAP | ROS | Overall | |
|---|---|---|---|---|---|
| Total sample, n | 1,283 | 1,921 | 1,393 | 4,597 | |
| MCR sample, n (%) | 171 (13.3) | 268 (13.9) | 171 (12.3) | 610 (13.3) | |
| Study baseline year | 2002 | 1997 | 1994 | - | |
| Age Range | 70.4-98.5* | 62.9-98.7 | 64.8-98.2 | 62.9-98.7 | |
| Women, % | 63 | 74 | 69 | 70 | |
| Education, mean (SD) y | 13.7 (3.3) | 13.8 (4.0) | 17.5 (3.8) | 14.8 (4.1) | |
| Incident dementia among persons with MCR, n | 16 | 68 | 72 | 156 | |
| Post-MCR follow-up time, median (range) y | 1.1 (11.7) | 3.0 (14.3) | 6.5 (22.1) | 2.9 (22.1) | |
| Gait speed, mean (SD) cm/s | 58.4 (14.0)* | 35.7 (7.6) | 36.7 (11.3) | 42.4 (14.7) | |
| Slow gait cutscores (cm/s) | Men 60-74y | 88.1* | 50.5 | 56.6 | - |
| Men ≥75y | 72.3 | 45.1 | 44.5 | - | |
| Women 60-74y | 76.7* | 48.8 | 52.1 | - | |
| Women ≥75y | 66.5 | 40.7 | 36.9 | - | |
| Logical memory test Immediate recall, mean (SD) | 10.2 (4.0) | 10.0 (4.3) | 10.9 (4.3) | 10.3 (4.2) | |
| MMSE, mean (SD) | 26.1 (1.6)** | 27.0 (2.9) | 27.8 (2.0) | 27.0 (2.5) | |
| BIMC, mean (SD) | 2.7 (2.2) | - | - | - | |
| Cognitive complaint severity score, mean (SD) | −0.2 (0.5) | 0.1 (0.6) | 0.1 (0.7) | 0.0 (0.6) | |
Abbreviations: EAS: Einstein Aging Study; MAP: Memory and Aging Project; ROS: Religious Orders Study; BIMC: Blessed-Information-Memory-Concentration test; MMSE: Mini-Mental State Examination.
*
EAS sample age of entry was 70 and over.
**
For EAS, MMSE scores were converted from BIMC scores.