Daytime Physical Activity and Sleep in Hospitalized Older Adults: Association with Demographic Characteristics and Disease Severity

. Author manuscript; available in PMC: 2016 Feb 12.

Published in final edited form as: J Am Geriatr Soc. 2015 Jul 1;63(7):1391–1400. doi: 10.1111/jgs.13520

Association between Age, Sleep Efficiency, and Daytime Physical Activity

N = 120
		Mean Average Activity Counts per Minute^b (95% CI)	P-value
Age (years)^a	<65	120 (102, 138)	<0.001
Age (years)^a	≥65	73 (63, 84)	<0.001
Objective Sleep Efficiency^b,^c (%)	0–62.6%	121 (97, 145)	<0.001
	62.6–82.2%	102 (84, 119)
	>82.2%	70 (58, 85)

Two-sample t-test with equal variances

Obtained from actigraphy

Nonparametric test for trend across ordered groups