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Table 2 Bivariate and multivariable predictors of wanting to take a test for Alzheimer’s disease

From: Desire for predictive testing for Alzheimer’s disease and impact on advance care planning: a cross-sectional study

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)
  1. AD Alzheimer’s disease, ADL activity of daily living, CI confidence interval