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

Table 3 Factors predictive for increased risk of developing UTI after age of 86 years onwards by multivariate Cox regression analysis and Population Attributable Risk (PAR) of the occurrence of UTI (n = 479)

	N	HR (95%CI)	PAR (%)
Functioning
Severe cognitive impairment (MMSE < 19)	88	1.9 (1.3, 2.9)	19.6
Disability in daily living †	275	1.7 (1.1, 2.5)	43.8
Co-morbidities
UTI between the ages of 85 and 86 years	68	3.4 (2.4, 5.0)	24.1
Self-reported urine incontinence	231	1.5 (1.0, 2.1)	33.0

Variables in multivariate Cox regression model: gender, institutionalisation, education, severe cognitive impairment (MMSE < 19), disability in daily living, UTI between the ages of 85 and 86 years, stroke, unintentional loss of faeces, self-reported urine incontinence and medical diagnosis urine incontinence.
CI = confidence interval; HR = hazard ratio; MMSE = Mini-Mental State Examination; UTI = urinary tract infection
† Disability in daily living = unable to do any one of the nine basic activities of daily living independently, according to the Groningen Activity Restriction Scale.

ISSN: 1741-7015