Poor self-rated health predicts the incidence of functional disability in elderly community dwellers in Japan: a prospective cohort study

Table 2 Hazard ratios for functional disability among the self-rated health groups utilizing a multivariate Cox regression analysis

	Self-rated health							P for trend
	Good	Rather good		Neither good nor poor		Poor		P for trend
Men (n = 4333)
Number of participants	1412	1990		635		296
Number of cases (person-years/1000 person-years)	366 (2.55)	566 (3.87)		188 (1.21)		125 (0.71)
HR, 95% CI	1 (reference)	1.04	0.92, 1.19	1.06	0.89, 1.27	1.74	1.42, 2.14	< 0.001
Women (n = 6627)
Number of participants	1624	3292		1143		568
Number of cases (person-years/1000 person-years)	449 (3.14)	1011 (6.92)		401 (2.58)		271 (1.55)
HR, 95% CI	1 (reference)	1.12	1.00, 1.25	1.29	1.13, 1.48	1.92	1.65, 2.24	< 0.001

Abbreviations: CI confidence interval, HR hazard ratios
Cox regression analysis adjusted for the variables below
Men: diastolic blood pressure, non-high-density lipoprotein cholesterol, hemoglobin, glycosylated hemoglobin, estimated glomerular filtration rate, job status, marital status, alcohol drinking status, regular exercise habits, and sleep duration
Women: total cholesterol, non-high-density lipoprotein cholesterol, glycosylated hemoglobin, estimated glomerular filtration rate, job status, marital status, and regular exercise habits

ISSN: 1471-2318