Research Article
The Effects of Lutein and Zeaxanthin Supplementation on Brain Morphology in Older Adults: A Randomized, Controlled Trial
Table 1
Preintervention characteristics.
| | | % or M (SD) | | Supplement (N = 33) | Placebo (N = 14) | Overall sample (N = 47) |
| | Age (years) | 72.4 (6.27) | 70.4 (5.43) | 71.8 (6.04) | | Sex (% female) | 51.5% | 71.4 % | 57.4% | | Race (% Caucasian) | 100% | 100% | 100% | | Education (years) | 16.6 (3.31) | 16.7 (3.02) | 16.6 (3.19) | | Cognitive impairment (%) | | | | | No impairment (CDR = 0) | 87.9% | 100% | 91.5% | | Mild impairment (CDR = 0.5) | 12.1% | 0% | 8.5% |
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Note: CDR = clinical dementia rating scale.
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