| ARIC-NCS |
---|---|
Age—Mean (SD) | 79.8 (4.7) |
Sex—Female—N(%) | 2142 (59.8) |
Race—Black—N (%) | 837 (23.4) |
Hearing Impairment—Impaired—N (%) | 2614 (73.0) |
Vision Impairment—Impaired—N (%) | 180 (17.9) |
Education: Less than HS—N (%) | 428 (12.0) |
Education: HS or equivalent—N (%) | 1475 (41.2) |
Education: Beyond HS—N (%) | 1673 (46.8) |
Cognitive Items—% Missing in Observed Data (N) | |
 Boston Naming Test (30 item) | 8.2% (270) |
 Category Fluency (Animals) | 0.5% (17) |
 Delayed Word Recall | 1.6% (58) |
 Digit Symbol Backwards | 8.8% (289) |
 Digit Symbol Substitution Task | 3.9% (136) |
 Incidental Learning | 4.5% (154) |
 Logical Memory 1 | 9.2% (303) |
 Logical Memory 2 | 9.3% (306) |
 Phonemic Fluency (Sum of 3 Trials) | 1.5% (54) |
 Trail-Making Test A | 3.8% (130) |
 Trail-Making Test B | 19.1% (573) |