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IS MALNUTRITION A RISK FACTOR FOR INCIDENT URINARY TRACT INFECTION AMONG OLDER PEOPLE IN RESIDENTIAL CARE FACILITIES?

M. Burman, C. Hörnsten, M. Carlsson, E. Rosendahl, P. Nordström, B. Olofsson, Y. Gustafson

Jour Nursing Home Res 2018;4:49-55

Background: Malnutrition and urinary tract infections (UTI) are common among older people living in residential care facilities. Objectives: To determine whether malnutrition is a risk factor for incident urinary tract infection in people aged ≥65 years living in residential care facilities. Design, Setting, and Participants: A prospective cohort study of people living in residential care facilities in northern Sweden (N=373). Data from the Frail Older People-Activity and Nutrition and Umeå Dementia and Exercise studies were used. Measurements: Malnutrition was assessed using the Mini Nutritional Assessment (MNA). Risk factors for UTI were explored using univariate and multivariate Cox proportional hazard regression analyses. Maximum follow-up time was 9 months. Results: The incidence of UTI was 460/1000 person-years; 85/276=30.8% of women and 16/97=16.5% of men contracted UTIs. History of UTI (hazard ratio [HR] 2.804, 95% confidence interval [CI] 1.824–4.311), heart failure (HR 2.101, 95% CI 1.368–3.225), hypertension (HR 1.656, 95% CI 1.095–2.504), and low Mini-Mental State Examination (MMSE) score (HR 0.937, 95% CI 0.892–0.985) were associated independently with higher risk of incident UTI in multivariate analyses. Malnutrition was not associated with UTI in the whole sample or in women; MNA score was associated with UTI in men in univariate analysis (HR 0.841, 95% CI 0.750–0.944). Conclusion: The incidence of UTI was high in residential care facilities and individuals with histories of UTI, heart failure, hypertension, or cognitive impairment were more likely to be affected. Malnutrition was not a risk factor for UTI in the whole sample or in women, but may constitute a risk for UTI among men.

CITATION:
M. Burman ; C. Hörnsten ; M. Carlsson ; E. Rosendahl ; P. Nordström ; B. Olofsson ; Y. Gustafson (2018): IS MALNUTRITION A RISK FACTOR FOR INCIDENT URINARY TRACT INFECTION AMONG OLDER PEOPLE IN RESIDENTIAL CARE FACILITIES?. The Journal of Nursing Home Research Science (JNHRS). http://dx.doi.org/10.14283/jnhrs.2018.10

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