Appendix Table 4.
Stability classifications from BL to A2 and means (standard errors) of respective A2 outcomes (N=2,173)
| Stable Amnestic (N=54) | Stable Non- amnestic (N=239) | Flipped Impairment (N=83) | Reverted to Unimpaired (N=279) | Worsened to Impaired (N=195) | Stable Unimpaired (N=1323) | |
|---|---|---|---|---|---|---|
| A2 Age | 77.33 (0.78)a | 75.70 (0.37)a | 76.88 (0.63)a | 76.51 (0.34)a | 76.44 (0.41)a | 75.90 (0.16)a |
| Years of Education | 13.07 (0.36)a | 13.55 (0.17)a | 13.58 (0.29)a | 13.46 (0.16)a | 14.03 (0.19)a | 13.57 (0.07)a |
| Gender, %Female | 64.81 (5.70)* | 75.31 (2.71) | 61.45 (4.60)* | 73.12 (2.51)* | 72.82 (3.00)T | 80.12 (1.15) |
| Race, % African American | 24.07 (5.72) | 25.94 (2.72) | 32.53 (4.62) | 20.79 (2.52) | 20.00 (3.01) | 22.68 (1.16) |
| A2 Vision Score | 67.38 (1.70)a | 69.69 (0.81)a | 70.31 (1.37)ab | 71.60 (0.75)ab | 71.85 (0.89)ab | 72.89 (0.34)b |
| A2 MMSE | 23.74 (0.30)a | 25.80 (0.14)b | 25.05 (0.25)b | 27.04 (0.14)c | 26.56 (0.16)c | 27.76 (0.06)d |
| A2 MMSE-No Language | 16.38 (0.28)a | 18.49 (0.14)b | 17.68 (0.24)c | 19.47 (0.13)d | 19.08 (0.15)d | 20.04 (0.06)e |
| A2 CES-D | 6.70 (0.69)abT | 6.58 (0.33)a | 6.05 (0.56)ab | 5.63 (0.30)abT | 6.12 (0.36)a | 4.72 (0.14)b |
| A2 SF-36 General Health | 60.76 (2.90)a | 64.04 (1.33)a | 62.22 (2.29)a | 65.91 (1.22)abT | 64.49 (1.50)a | 69.74 (0.56)b |
| A2 SF-36 Physical Functioning | 56.96 (3.73)ab | 62.57 (1.72)ab | 56.20 (2.98)a | 64.76 (1.58)ab | 62.47 (1.95)ab | 66.74 (0.72)b |
| A2 IADL/ADL | 9.02 (0.96)ab | 6.83 (0.45)ac | 10.03 (0.77)b | 5.30 (0.41)c | 7.78 (0.51)ab | 4.98 (0.19)c |
| A5 Dropout % | 22.22 (5.19) | 22.59 (2.47)* | 38.55 (4.19)* | 19.71 (2.28) | 20.00 (2.73) | 15.04 (1.05) |
Note: Matching superscript letters indicate values are not significantly different, p>.05, using Bonferroni corrected one-way ANOVAs. Chi-squared tests were used to measure dichotomous variables—significant overall chi-square statistics were followed up with logistic contrasts, using the Stable Unimpaired group as the reference value; significant differences after adjusting for the 5 comparisons to the reference group are denoted with superscript*. Trend-level significant difference from the Stable Unimpaired group, p < .10, is denoted with superscriptT.