Document Classification

Section Type: RESULTS

Text: Independent predictors for a complicated course were age above 60 years (adjusted odds ratio (OR) : 1. 74 ; 95 % confidence interval (CI) : 0. 99-3. 03), chronic use of antibiotics (adjusted OR : 5. 50 ; 95 % CI : 2. 31-13. 08), more than 6 physician contacts in previous year (adjusted OR : 3. 60 ; 95 % CI : 2. 00-6. 49), hospitalization in previous year (adjusted OR : 1. 36 ; 95 % CI : 1. 00-1. 85), renal disease (adjusted OR : 4. 92 ; 95 % CI : 1. 59-15. 18) and incontinence of urine (adjusted OR : 3. 78 ; 95 % CI : 1. 93-7. 38).