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Table 1: Key demographic information
No. of Subjects Age (Range) (Mean) (yr) Male/Female Ratio
NPH 23 58–87 (76.9) 13:10
Alzheimer disease 10 56–81 (74.9) 5:5
Controls 11 60–87 (75) 6:5
	No. of Subjects	Age (Range) (Mean) (yr)	Male/Female Ratio
NPH	23	58–87 (76.9)	13:10
Alzheimer disease	10	56–81 (74.9)	5:5
Controls	11	60–87 (75)	6:5