Table 2.
Bivariate and multivariable predictors of wanting to take a test for Alzheimer’s disease
| Characteristic | Bivariate analyses | Multivariable analyses | |
|---|---|---|---|
| n (%) desiring test for AD | P value | odds ratio (95% CI) | |
| Age | |||
| ≤ 75 years | 378 (78.4%) | 0.003 | Referent |
| > 75 years | 270 (69.6%) | 0.71 (0.53–0.94) | |
| Sex | |||
| Male | 269 (76.0%) | 0.568 | Referent |
| Female | 379 (74.0%) | 0.99 (0.7–1.39) | |
| Race | |||
| Nonwhite | 159 (79.7%) | 0.205 | Referent |
| White | 489 (73.9%) | 0.75 (0.41–1.38) | |
| Education | |||
| More than high school | 510 (78.9%) | 0.266 | Referent |
| Less than high school | 138 (70.7%) | 0.75 (0.47–1.19) | |
| Marital status | |||
| Single | 265 (71.9%) | 0.136 | Referent |
| Married or partnered | 383 (77.0%) | 1.17 (0.8–1.72) | |
| Number of ADL difficulties | |||
| 0 difficulties | 521 (75.0%) | 0.981 | Referent |
| 1 difficulty | 65 (75.0%) | 0.98 (0.52–1.84) | |
| 2+ difficulties | 62 (74.1%) | 0.79 (0.46–1.35) | |
| Number of comorbidities | 1.11 (0.94–1.32) | ||
| Self-rated health | |||
| Good/excellent | 454 (74.1%) | 0.439 | Referent |
| Fair/poor | 193 (76.9%) | 1.18 (0.76–1.81) | |
| Self-rated memory | |||
| Good/excellent | 433 (76.6%) | 0.253 | Referent |
| Fair/poor | 214 (71.5%) | 0.72 (0.44–1.17) | |
| Self-rated risk of AD | |||
| Low | 303 (72.0%) | 0.110 | Referent |
| High | 345 (77.7%) | 1.33 (0.9–1.97) | |
| Advance directive completed | |||
| No | 569 (76.7%) | 0.029 | Referent |
| Yes | 79 (64.4%) | 0.56 (0.33–0.92) | |
AD Alzheimer’s disease, ADL activity of daily living, CI confidence interval