Table 1.
Baseline characteristics of non-autopsy and autopsy participants in The 90+ Study 2003 cohort
| Characteristic | All Participants (N = 961)1 | Non-Autopsy (N = 811)1 | Autopsy (N = 150)1 | p-value2 |
|---|---|---|---|---|
|
| ||||
|
Median (range)
| ||||
| Age at entry (y) | 94.9 (90–107) | 95.0 (90–107) | 94.5 (90–104) | 0.10 |
|
| ||||
| Age at death (y) | 96.8 (90–109) | 96.6 (90–109) | 97.9 (92–106) | <0.001 |
|
| ||||
|
Number (%)
| ||||
| Women | 751 (78) | 639 (79) | 112 (75) | 0.26 |
|
| ||||
| Education | ||||
| ≤High School | 351 (37) | 304 (38) | 47 (32) | 0.25 |
| Any College | 414 (44) | 346 (43) | 68 (46) | |
| Any Graduate School | 182 (19) | 148 (19) | 34 (23) | |
|
| ||||
| Living situation | ||||
| In own home alone | 277 (29) | 227 (29) | 50 (34) | 0.04 |
| In own home with relative or caregiver | 267 (28) | 220 (28) | 47 (32) | |
| Assisted living or board and care | 245 (26) | 207 (26) | 13 (26) | |
| Nursing home | 155 (16) | 142 (18) | 30 (9) | |
|
| ||||
| Medical histories at baseline | ||||
| Falls in previous year | 483 (53) | 409 (54) | 74 (52) | 0.76 |
| Heart disease | 404 (45) | 341 (45) | 80 (44) | 0.85 |
| Hypertension | 407 (47) | 336 (46) | 71 (51) | 0.21 |
| TIA | 200 (24) | 175 (25) | 25 (19) | 0.14 |
| Stroke | 133 (15) | 117 (16) | 16 (12) | 0.22 |
|
| ||||
| Neurological exam cognitive diagnosis | ||||
| Normal | 117 (31) | 78 (30) | 39 (35) | 0.58 |
| CIND | 142 (38) | 103 (39) | 39 (35) | |
| Demented | 113 (30) | 80 (31) | 33 (30) | |
1
Numbers do not always add to the total because of missing data.
2
p-values are for Wilcoxon rank sum test for continuous variables, Fisher’s exact test for binary variables, chi-square tests for categorical variables, and compare non-autopsy vs. autopsy participants.
Abbreviations: TIA=Transient ischemic attack; CIND=cognitively impaired not demented