Skip to main content
. Author manuscript; available in PMC: 2018 Mar 22.
Published in final edited form as: Chronobiol Int. 2017 Nov 28;35(3):368–377. doi: 10.1080/07420528.2017.1407779

Table 2.

Associations with the scaling exponent α.

B 95% CI p-Value
α2 at time scales 1.5–10 h
Disease −0.074 −0.114–−0.034 0.014
Disease* gender −0.068a −0.113–−0.024 0.010
Age* activity levels 0.003b,c 0.001–0.006 0.021
Only in patients
Radiotherapy* activity levels 0.041b 0.012–0.070 0.019
Δ = α1α2
Disease 0.058 0.016–0.099 0.006
α3 at time scales 10–24 h
Age 0.193c 0.066–0.320 0.003
Activity levels 0.472b 0.197–0.747 0.001
Age* activity levels −0.069b,c −0.021–−0.116 0.004

Data represented factors included in the linear regression model that were best able to predict scaling exponent α at different time scales.

a

I.e., the disease effect is stronger in men than women.

b

B for higher activity level: increase of 100 counts per 1-minute epoch.

c

B for age: increase of 10 years.

*

interaction. Disease: NFMA or craniopharyngioma.