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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