Table 3.
Demographic, Medical, and Cognitive Characteristics by Cognitive Status (n=145)
| Entire Sample (n=145) | Intact (n=103) | Impaired (n=42) | ||||
|---|---|---|---|---|---|---|
| M/% (range) | SD | M/% (range) | SD | M/% (range) | SD | |
| Demographics | ||||||
| Age | 64.4 | 5.44 | 64.5 | 5.48 | 64.0 | 5.41 |
| BMI | 27.9 | 6.56 | 28.1 | 6.85 | 27.4 | 5.83 |
| Education | 15.2 | 2.46 | 15.1 | 2.56 | 15.3 | 2.21 |
| Gender (female) | 59.3% | – | 60.2% | – | 57.1% | – |
| Ethnicity | ||||||
| Caucasian | 97.0% | – | 98.0% | – | 95.2% | – |
| Black | 2.00% | – | 1.00% | – | 4.80% | – |
| Other | 1.00% | – | 1.00% | – | 0.00% | – |
| Medical history | ||||||
| Depression/anxiety | 22.0% | – | 18.6% | – | 28.6% | – |
| Sleep apnea | 9.66% | – | 5.88% | – | 19.0% | – |
| Diabetes | 8.28% | – | 8.82% | – | 7.10% | – |
| Hypertension | 27.6% | – | 25.4% | – | 33.3% | – |
| Cognition | ||||||
| Picture | 48.0 (28.0–84.0) | 10.1 | 50.5 (36.0–84.0) | 9.62 | 42.0 (28.0–67.0) | 10.0 |
| Flanker | 43.1 (24.0–65.0) | 6.94 | 45.1 (36.0–65.0) | 6.49 | 38.2 (24.0–49.0) | 5.54 |
| Card sort | 53.2 (29.0–81.0) | 9.89 | 56.0 (38.0–81.0) | 8.80 | 46.1 (29.0–67.0) | 9.15 |
| List sort | 51.8 (28.0–73.0) | 9.19 | 53.4 (37.0–73.0) | 8.98 | 48.0 (28.0–69.0) | 8.53 |
| Pattern | 47.9 (10.0–83.0) | 13.1 | 52.4 (36.0–83.0) | 10.4 | 38.2 (10.0–71.0) | 13.0 |
| Total | 48.0 (27.0–78.0) | 9.97 | 52.0 (37.0–78.0) | 8.24 | 38.1 (27.0–55.0) | 7.29 |
Abbreviations: Picture, picture sequence memory test; Flanker, flanker inhibitory control and attention test; Card sort, dimension change card sort test; List sort, list sorting working memory test; Pattern, pattern comparison processing speed test; Total, total cognition score.