Table 1.
Baseline characteristics, including percentages, means, and standard deviations, for the whole sample and separated by observed pathologic status, Health and Retirement Study 1996–2012
| Characteristics | Overall |
Healthy aging |
Sample who experienced onset |
|||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |
| Fluid cognition | 24.08 | 4.14 | 24.26 | 4.15 | 23.67 | 3.83 |
| Education per year | 12.64 | 2.76 | 12.68 | 2.75 | 12.51 | 2.82 |
| Age in years | 66.63 | 7.46 | 66.02 | 7.42 | 68.91 | 7.18 |
| % | % | % | |
|---|---|---|---|
| Female | 58.82 | 58.01 | 61.88 |
| n | 9401 | 7309 | 1944 |
Abbreviation: SD, standard deviation.