Antecedent factors in urinary tract infections among nursing home patients.
By a retrospective relative risk analysis for conditions associated with urinary tract infection over a four-year period in a defined teaching nursing home population (n = 97), we reached the following conclusions: (1) UTI was associated with cerebrovascular accident (relative risk 2.2, 95% confidence interval 1.4 to 3.2), decreased activities of daily living (relative risk 2.6 to 3.2, 95% confidence interval 1.4 to 4.7), decreased mental status (relative risk 2.2, 95% confidence interval 1.2 to 3.1), urinary catheterization (relative risk 2.5, 95% confidence interval 1.3 to 3.7), and antibiotic prophylaxis (relative risk 2.1, 95% confidence interval 1.2 to 3.0). (2) Risk of UTI from urinary catheterization and antibiotic prophylaxis was additive for these functionally impaired patients. (3) Renal insufficiency, diabetes, anemia, malnutrition, age, and incontinence (without catheterization) were not related to risk of UTI.
Powers
J S
JS
Division of Primary Care and Internal Medicine, Vanderbilt University School of Medicine, Nashville, Tenn.
Billings
F T
FT
Behrendt
D
D
Burger
M C
MC
D000328:Adult; D000368:Aged; D003428:Cross Infection / Q000209:etiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009735:Nursing Homes; D012189:Retrospective Studies; D012307:Risk Factors; D014546:Urinary Catheterization / Q000009:adverse effects; D014552:Urinary Tract Infections / Q000209:etiology*