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  • Title: Urinary tract infection in primary health care in northern Sweden. I. Epidemiology.
    Author: Ferry S, Burman LG, Mattsson B.
    Journal: Scand J Prim Health Care; 1987 May; 5(2):123-8. PubMed ID: 3616271.
    Abstract:
    During a 12-month study at the primary health care (PHC) centre in Vännäs (population 8,000) 632 encounters by 265 individuals because of suspected urinary tract infection (UTI) or control after treatment resulted in 279 episodes of bacteriuria in 185 patients. Nine per cent of the episodes concerned patients with indwelling catheter or incontinence requiring other aids. Symptoms of lower and higher UTI were recorded in 56 and 12%, respectively, whereas one third of the episodes were associated with vague or no symptoms and discovered mainly at planned treatment controls. The annual incidence of bacteriuria recorded increased from 0.5% in the first decade of life to more than 10% in the age group 90-100 years. Male UTI comprised 13% of the episodes, increased after middle age and contributed 40% at greater than or equal to 80 years of age. The risk of recurrence (on average 50% during the year studied) was relatively independent of sex and age. No seasonal variation of UTI was observed except for a peak in late summer due to Staphylococcus saprophyticus confined to females aged 15-64 years and causing 28% of the episodes in August. Although UTI in PHC appears to be similar globally it represents a far more complex patient group than indicated by the UTI drug trials frequently published.
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