Table 2 Summary of survival analysis of 24-h rhythms and developing Alzheimer’s and Parkinson’s disease

Intradaily variability (IV)

1.03

0.88–1.21

0.69

1.10

0.97–1.25

0.12

Interdaily stability (IS)

1.25

1.05–1.48

0.01

0.95

0.83–1.09

0.44

Least active 5 h (L5)

0.69

0.24–1.94

0.48

0.24

0.08–0.69

0.01

Most active 10 h (M10)

0.75

0.61–0.94

0.01

0.20

0.16–0.25

< 0.001

Amplitude

0.79

0.65–0.96

0.02

0.28

0.23–0.34

< 0.001

Mesor

0.78

0.59–0.998

0.048

0.13

0.1–0.16

< 0.001