. Author manuscript; available in PMC: 2016 Nov 29.

Published in final edited form as: J Am Med Dir Assoc. 2015 Feb 27;16(6):509–514. doi: 10.1016/j.jamda.2015.01.088

Table 2.

Cox Proportional Hazards Model for Incidence of Depressed Mood in the Group Not Depressed at Baseline^*

N = 699	Imputed Data		Complete Cases
	HR (95% CI)	P Value	HR (95% CI)	P Value
Frailty (N = 29)^†:
Unadjusted	1.41 (1.24, 1.60)	<.001	1.43 (1.23, 1.60)	<.001
Fully adjusted^‡	1.26 (1.09, 1.45)	.002	1.25 (1.08, 1.46)	.003
Components of frailty^‡:
Weight loss (N = 29)	1.49 (0.80, 2.76)	.205	1.48 (0.79, 2.75)	.218
Weakness (N = 115)	1.21 (0.85, 1.73)	.279	1.20 (0.84, 1.71)	.329
Slowness (N = 106)	1.39 (0.95, 2.03)	.087	1.36 (0.92, 2.02)	.123
Exhaustion (N = 69)	1.40 (0.95, 2.08)	.090	1.40 (0.95, 2.08)	.090
Low physical activity level (N = 76)	1.68 (1.17, 2.42)	.005	1.68 (1.17, 2.42)	.005

Number of events: 214, number of person years: 4668 (45.8 events/1000 person years).

^†

Frailty was used as a continuous variable.

^‡

Frailty components were analyzed separately and adjusted for age, gender, level of education, smoking status, alcohol use, number of somatic diseases, and MMSE score.