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Table 6 Demographic profile for the subjects in the longitudinal data analysis by different diagnosis groups

From: Longitudinal data in peripheral blood confirm that PM20D1 is a quantitative trait locus (QTL) for Alzheimer’s disease and implicate its dynamic role in disease progression

Demographics

Stable diagnosis

Converters

Control

MCI

AD

Total subjects

162

174

87

117

Male/female

79/83

104/70

57/30

68/49

# of visits

2.66 ± 0.69

2.63 ± 0.68

2.10 ± 0.99

3.10 ± 0.88

Age at visits

77.34 ± 6.19

75.78 ± 6.20

79.01 ± 6.62

78.18 ± 6.33

Duration of follow-ups

1.71 ± 0.71

1.73 ± 0.67

1.12 ± 1.00

2.07 ± 0.95