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Means (SD) Performance on the Neuropsychological Measures
| Age | Month Ordering Span | Trails (sec.) | Stroop Interference (#) | WCST % Perseveration | MMSE |
|---|---|---|---|---|---|
| 55–64 | 4.41 (1.04) | 36.70 (17.23) | 133.41 (33.52) | 13.23 (8.38) | 29.47 (.67) |
| 65–74 | 4.44 (1.07) | 39.96 (21.59) | 148.63 (38.08) | 14.52 (11.29) | 29.23 (.75) |
| 75–88 | 4.16 (.99) | 49.36 (28.09) | 159.75 (49.68) | 17.51 (13.10) | 29.09 (.74) |
| All | 4.33 (1.04) | 42.63 (23.81) | 148.96 (42.81) | 15.25 (11.38) | 29.24 (.74) |
