Table 1.
Descriptive Statistics of Three Data Sets
| N | Minimum | Maximum | Mean | SD | |
|---|---|---|---|---|---|
| H-EPESE | |||||
| Gender (% female) | 3,050 | — | — | 42% | — |
| Education | 3,002 | 0 | 20 | 4.85 | 3.90 |
| Age | 1,980 | 70 | 104 | 77.40 | 6.07 |
| MMSE | 1,876 | 0 | 30 | 21.05 | 7.29 |
| IADL | 1,970 | 0 | 10 | 2.61 | 3.46 |
| CLOX1 | 1,108 | 0 | 15 | 8.37 | 3.25 |
| CLOX2 | 1,192 | 1 | 15 | 12.26 | 2.40 |
| Valid N (listwise) | 1,064 | ||||
| TARCC MA | |||||
| Gender (% female) | 1,082 | — | — | 68% | — |
| Education | 1,082 | 0 | 23 | 10.01 | 4.72 |
| Age | 1,082 | 50 | 94 | 66.41 | 9.24 |
| MMSE | 1,082 | 5 | 30 | 26.23 | 4.08 |
| IADL | 1,068 | 3 | 31 | 9.15 | 3.86 |
| CLOX1 | 1,012 | 0 | 15 | 11.18 | 2.66 |
| CLOX2 | 1,010 | 0 | 15 | 13.27 | 1.72 |
| Valid N (listwise) | 1,010 | ||||
| TARCC NHW | |||||
| Gender (% female) | 1,898 | — | — | 58% | — |
| Education | 1,898 | 3 | 23 | 14.96 | 2.799 |
| Age | 1,898 | 50 | 102 | 73.50 | 8.991 |
| MMSE | 1,897 | 2.00 | 30.00 | 24.88 | 5.221 |
| IADL | 1,396 | 1.00 | 5.00 | 1.31 | 0.710 |
| CLOX1 | 878 | 0.00 | 15.00 | 11.69 | 2.715 |
| CLOX2 | 871 | 2.00 | 15.00 | 13.34 | 1.819 |
| Valid N (listwise) | 869 | ||||
Notes. H-EPESE = Hispanic Established Population for Epidemiological Studies in the Elderly; IADL = instrumental activities of daily living; MA = Mexican American; MMSE = Mini-Mental State Examination; NHW = non-Hispanic White; TARCC = Texas Alzheimer’s Research and Care Consortium.