据报道,美国的发病率约为每10万名妇女每年发病人数2.6例。[7]Curhan GC, Speizer FE, Hunter DJ, et al. Epidemiology of interstitial cystitis: a population based study. J Urol. 1999;161:549-552.http://www.ncbi.nlm.nih.gov/pubmed/9915446?tool=bestpractice.com流行病学的统计数据因农村的发病情况和诊断标准的差异而有所差异。在美国,流行病学统计约为每10万妇女发病60-70例。[7]Curhan GC, Speizer FE, Hunter DJ, et al. Epidemiology of interstitial cystitis: a population based study. J Urol. 1999;161:549-552.http://www.ncbi.nlm.nih.gov/pubmed/9915446?tool=bestpractice.com影响美国和欧洲的约100万妇女和男性。[8]Sant GR, Hanno PM. Interstitial cystitis: current issues and controversies in diagnosis. Urology. 2001;57(6 suppl 1):82-88.http://www.ncbi.nlm.nih.gov/pubmed/11378054?tool=bestpractice.com据报道,在欧洲发病率为每10万女性18例,而在东北亚发病率约为每10万人3-4人。[7]Curhan GC, Speizer FE, Hunter DJ, et al. Epidemiology of interstitial cystitis: a population based study. J Urol. 1999;161:549-552.http://www.ncbi.nlm.nih.gov/pubmed/9915446?tool=bestpractice.com这种差异与病理诊断标准的不一致有关。
一个医疗管理数据宣称该病的男女比例为1:5。[9]Clemens JQ, Meenan RT, Rosetti MC, et al. Prevalence and incidence of interstitial cystitis in a managed care population. J Urol. 2005;173:98-102.http://www.ncbi.nlm.nih.gov/pubmed/15592041?tool=bestpractice.com发病率最高的年龄段为40-60岁。[9]Clemens JQ, Meenan RT, Rosetti MC, et al. Prevalence and incidence of interstitial cystitis in a managed care population. J Urol. 2005;173:98-102.http://www.ncbi.nlm.nih.gov/pubmed/15592041?tool=bestpractice.com女性、中年患者(45-59岁)和低经济收入的患者症状表现更加典型。患者中白人占94%,犹太女性似乎发病率要稍高。[10]Lewi H. Medical therapy in interstitial cystitis: the Essex experience. Urology. 2001;57(6 suppl 1):120.http://www.ncbi.nlm.nih.gov/pubmed/11378104?tool=bestpractice.com