Table 4.
Estimated Prevalence of Dementia by Age and Gender in 2000 and 2012, Three Model Specifications, HRS, Age 65+
No adjustment for proxy interviews; or mortality | Adjusting for mortality; but not for proxy interviews | Adjusting for proxy interviews and mortality | |||||||
---|---|---|---|---|---|---|---|---|---|
Total | 2000 | 2012 | Δ | 2000 | 2012 | Δ | 2000 | 2012 | Δ |
65–74 | 4.08 | 3.07 | −1.01*** | 4.08 | 3.07 | −1.01*** | 4.07 | 3.47 | −0.6* |
[0.34] | [0.29] | [0.32] | [0.35] | [0.29] | [0.34] | [0.36] | [0.31] | [0.34] | |
75–84 | 14.23 | 10.23 | −4*** | 14.23 | 10.24 | −3.99*** | 14.39 | 11.15 | −3.24*** |
[0.7] | [0.65] | [0.69] | [0.75] | [0.68] | [0.72] | [0.74] | [0.7] | [0.72] | |
85+ | 40.42 | 36.01 | −4.4** | 40.40 | 36.03 | −4.37** | 40.86 | 37.39 | −3.47** |
[1.57] | [1.59] | [1.72] | [1.58] | [1.63] | [1.71] | [1.58] | [1.59] | [1.7] | |
65+ | 11.89 | 9.78 | −2.1*** | 11.89 | 9.79 | −2.1*** | 11.99 | 10.48 | −1.51*** |
[0.46] | [0.46] | [0.41] | [0.48] | [0.47] | [0.4] | [0.48] | [0.49] | [0.42] | |
Males | 2000 | 2012 | Δ | 2000 | 2012 | Δ | 2000 | 2012 | Δ |
65–74 | 4.20 | 2.27 | −1.93*** | 4.21 | 2.27 | −1.93*** | 4.17 | 2.71 | −1.46*** |
[0.47] | [0.29] | [0.46] | [0.47] | [0.3] | [0.47] | [0.46] | [0.33] | [0.48] | |
75–84 | 11.07 | 7.79 | −3.28*** | 11.07 | 7.80 | −3.27*** | 11.16 | 8.97 | −2.2** |
[0.87] | [0.71] | [0.95] | [0.87] | [0.74] | [0.97] | [0.91] | [0.73] | [1] | |
85+ | 30.01 | 25.84 | −4.17 | 29.99 | 25.85 | −4.14 | 30.29 | 28.11 | −2.19 |
[2.18] | [2.01] | [2.63] | [2.27] | [2.16] | [2.72] | [2.25] | [2.09] | [2.77] | |
65+ | 8.77 | 6.48 | −2.28*** | 8.77 | 6.49 | −2.28*** | 8.81 | 7.34 | −1.46*** |
[0.53] | [0.46] | [0.52] | [0.54] | [0.48] | [0.53] | [0.54] | [0.47] | [0.55] | |
Females | 2000 | 2012 | Δ | 2000 | 2012 | Δ | 2000 | 2012 | Δ |
65–74 | 3.98 | 3.75 | −0.22 | 3.97 | 3.75 | −0.22 | 3.99 | 4.12 | 0.13 |
[0.42] | [0.39] | [0.45] | [0.41] | [0.39] | [0.47] | [0.44] | [0.42] | [0.48] | |
75–84 | 16.36 | 12.05 | −4.31*** | 16.37 | 12.06 | −4.31*** | 16.57 | 12.78 | −3.79*** |
[0.92] | [0.86] | [0.95] | [0.96] | [0.86] | [0.96] | [0.96] | [0.92] | [0.99] | |
85+ | 44.92 | 41.26 | −3.66* | 44.90 | 41.27 | −3.63* | 45.43 | 42.18 | −3.25 |
[1.83] | [1.85] | [2.13] | [1.8] | [1.83] | [2.09] | [1.88] | [1.83] | [2.1] | |
65+ | 14.08 | 12.31 | −1.77*** | 14.08 | 12.32 | −1.76*** | 14.24 | 12.88 | −1.35** |
[0.59] | [0.61] | [0.58] | [0.6] | [0.61] | [0.59] | [0.62] | [0.64] | [0.61] |
Note. Standard errors in brackets. *, **, and *** denote statistical significance at 1%, 5%, and 10%, respectively. The standard errors of the changes in prevalence are about the same as the standard errors of the levels in prevalence because of a positive correlation between the 2000 and 2012 prevalence estimates.