Prevalence and incidence of interstitial cystitis in a managed care population.
Clemens JQ, Meenan RT, Rosetti MC, Gao SY, Calhoun EA.
J Urol. 2005 Jan;173(1):98-102; discussion 102.
PubMed Article‘, ‘ J Urol. 2005 Jan;173(1):98-102; discussion 102.
Prevalence and incidence of interstitial cystitis in a managed care population.
Clemens JQ, Meenan RT, Rosetti MC, Gao SY, Calhoun EA.
Department of Urology, Northwestern University Feinberg School of Medicine, 303
East Chicago Avenue, Chicago, Illinois 60611, USA.
qclemens@northwestern.edu
PURPOSE: We calculated the prevalence and incidence of physician diagnosedinterstitial cystitis (IC) in men and women in a managed care population in thePacific Northwest.
MATERIALS AND METHODS: A computer search of the KaiserPermanente Northwest (Portland, Oregon) database was performed for January 1998to May 2002. The prevalence of IC in patients 25 to 80 years old was calculatedusing the 4 definitions of 1) patients assigned a diagnosis of IC, 2) patientsassigned a diagnosis of IC without any of the consensus IC exclusion criteria,3) patients who had also had undergone cystoscopy and 4) patients who hadspecifically undergone cystoscopy with hydrodistention for IC. A second databasesearch was performed 1 year later (May 2003) to identify incident cases of IC.
RESULTS: The prevalence of IC was 197 per 100,000 women and 41 per 100,000 menfor definition 1, 158 per 100,000 women and 28 per 100,000 men for definition 2,99 per 100,000 women and 19 per 100,000 men for definition 3, and 45 per 100,000women and 8 per 100,000 men for definition 4. Using definition 2 the 1-yearincidence of IC was 21 per 100,000 women and 4 per 100,000 men. Thefemale-to-male ratio for each estimate was 5:1.
CONCLUSIONS: The prevalence andincidence of interstitial cystitis is significantly higher for women and menthan previously published estimates. Men account for a higher proportion ofpatients with IC than has previously been recognized.
PMID: 15592041 [PubMed - indexed for MEDLINE]‘, ‘PubMed Article‘, ‘Articles of Interest