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Distribution of ORO grading in control 1 subjects and Alzheimer's disease patients.
| Score | Control 1 | AD | ||||
| Total | Female | Male | Total | Female | Male | |
| 0 | 29 | 18 | 11 | 1 | 1 | 0 |
| 1 | 22 | 14 | 8 | 13 | 8 | 5 |
| 2 | 6 | 5 | 1 | 21 | 14 | 7 |
| 3 | 0 | 0 | 0 | 41 | 32 | 9 |
| 4 | 0 | 0 | 0 | 17 | 12 | 5 |
| total | 57 | 37 | 20 | 93 | 67 | 26 |
ORO = Oil Red O
AD = Alzheimer's Disease
