Predictive factors of urinary tract infections among the oldest old in the general population. a population-based prospective follow-up study

Table 2 Risk of UTI from age 86 years onwards depending on disability (n = 479)

	Index group N (%)	Incidence in Index group, per 100 py (95% CI)	Incidence in reference group*, per 100 py(95% CI)	HR (95%CI)	P-value
Going to the toilet	103 (21.5)	5.9 (4.5, 7.7)	2.6 (2.1, 3.2)	3.8 (2.7, 5.4)	< 0.001
Drinking and feeding oneself	44 (9.2)	6.0 (4.0, 9.0)	3.0 (2.5, 3.6)	3.5 (2.3, 5.6)	< 0.001
Washing hands and face	65 (13.6)	5.6 (4.0, 7.9)	2.9 (2.4, 3.6)	3.3 (2.2, 4.9)	< 0.001
Preparing breakfast	80 (16.7)	5.3 (3.8, 7.3)	2.9 (2.4, 3.5)	3.1 (2.1, 4.6)	< 0.001
Getting into and out of bed	128 (26.7)	5.1 (3.9, 6.6)	2.7 (2.2, 3.3)	2.6 (1.9, 3.7)	< 0.001
Getting around the house	133 (27.8)	4.6 (3.5, 6.0)	2.8 (2.2, 3.4)	2.4 (1.7, 3.3)	< 0.001
Washing whole body	204 (42.6)	4.3 (3.5, 5.4)	2.5 (2.0, 3.3)	2.3 (1.7, 3.3)	< 0.001
Dressing oneself	183 (38.2)	4.3 (3.4, 5.4)	2.7 (2.1, 3.4)	2.1 (1.5, 3.0)	< 0.001
Standing up from a chair	147 (30.7)	4.3 (3.3, 5.6)	2.9 (2.3, 3.5)	2.0 (1.4, 2.8)	< 0.001

py = person-years; CI = confidence interval; HR = hazard ratio;
* Definition of reference groups: no disability going to the toilet, no disability drinking and feeding oneself, no disability washing hands and face, no disability preparing breakfast, no disability in getting into and out of bed, no disability in getting around the house, no disability washing whole body, no disability dressing oneself, no disability standing up from chair.

ISSN: 1741-7015