Midlife work ability and mobility limitation in old age among non-disability and disability retirees - a prospective study

Table 3 Incidence rate ratios and their 95 % confidence intervals for work ability as a predictor of mobility limitation. Unadjusted and mortality- and covariate-adjusted models presented for all, men and women

	All (n = 4329)			Men (n = 1826)			Women (n = 2503)
		95 % Confidence interval			95 % Confidence interval			95 % Confidence interval
	IRR	Lower	Upper	IRR	Lower	Upper	IRR	Lower	Upper
Unadjusted Model^a
Non-disability	0.88	0.87	0.89	0.87	0.85	0.88	0.89	0.88	0.91
CVD	0.94	0.92	0.96	0.93	0.91	0.95	0.97	0.93	1.01
Musculoskeletal	0.95	0.94	0.96	0.95	0.93	0.97	0.95	0.94	0.97
Mental disorder	0.93	0.90	0.95	0.90	0.86	0.94	0.94	0.91	0.97
Other	0.96	0.94	0.97	0.97	0.94	0.99	0.94	0.91	0.97
Mortality and covariate adjusted Model^b ^c
Non-disability	0.91	0.90	0.92	0.88	0.85	0.91	0.92	0.91	0.93
CVD	0.95	0.93	0.98	0.95	0.92	0.98	0.97	0.93	1.02
Musculoskeletal	0.96	0.95	0.97	0.96	0.94	0.99	0.96	0.94	0.98
Mental disorders	0.96	0.92	0.99	0.94	0.88	1.01	0.97	0.93	1.01
Other	0.97	0.95	0.99	0.98	0.95	1.02	0.95	0.92	0.99

Bold typeface indicates effect significant at the level of p ≤ 0.05
^aOffset term for time in follow-up was used for the mobility outcome
^b Covariates included in the model were marital status, occupational class, chronic illnesses, and lifestyle factors
^cMissing data in covariates adjusted for by maximum likelihood estimation under the assumption of missing-at-random

ISSN: 1471-2458