PT - JOURNAL ARTICLE AU - F Marra AU - G Ogilvie AU - L Colley AU - E Kliewer AU - C A Marra TI - Epidemiology and costs associated with genital warts in Canada AID - 10.1136/sti.2008.030999 DP - 2009 Apr 01 TA - Sexually Transmitted Infections PG - 111--115 VI - 85 IP - 2 4099 - http://sti.bmj.com/content/85/2/111.short 4100 - http://sti.bmj.com/content/85/2/111.full SO - Sex Transm Infect2009 Apr 01; 85 AB - Background: Genital warts (condyloma acuminatum) remain one of the most commonly reported sexually transmitted infections (STI) worldwide. Most genital warts are caused by non-oncogenic human papilloma virus. Recurrence is common and many patients receive several rounds of treatment. There are limited data in the literature on the burden of illness and costs associated with genital warts at a population level.Methods: Episodes of anogenital warts (AGW) were identified from the physician billing database, hospitalisation records and STI clinics from 1998 to 2006. To be included from the physician billing and STI databases, the person had to have a claim that had a diagnosis of condyloma acuminatum (078.11), viral warts (078.1), viral warts unspecified (078.10) or other unspecified warts (078.19), as well as one of the relevant fee codes associated with the treatment of AGW. To be included from the hospital database, the person could be of any age and have a diagnosis of AGW (A63.0), condyloma acuminatum (078.11), viral warts (078.1 or B07), viral warts unspecified (078.10) or other unspecified warts (078.19) in any of the diagnosis fields, as well as one of the relevant procedure codes associated with the treatment of AGW.Results: A total of 39 493 people was diagnosed with AGW and during this period they had a total of 43 586 episodes. The average cost per episode of AGW was $C190 ($C176 for men; $C207 for women). The majority of treatment was with ablative therapy alone (98%).Conclusions: AGW are associated with a significant burden of illness and costs to the healthcare system.