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Table 1 Incidence of anogenital warts

From: Systematic review of the incidence and prevalence of genital warts

Study

Country / Year

Setting, population and age groups

Annual incidence per 100,000

Definitions

   

New

Recurrent

Any (including new and recurrent)

 

Data based on retrospective administrative databases or medical chart reviews

Pirotta et al., 2010 [27]

Australia / 2000-06

Setting: nationally representative random sample of approximately 6,460 practicing GPs and sexual health clinics

NA

NA

Overall: 219 Males: 206 Females: 231

Any: GW cases never managed by any doctor or a first medical consultation for a new episode of a recurrent problem as determined by GP at consultation

Population: general population

 

Age: all ages

 

Steben et al., 2011 [31]

Canada (Quebec) / 2007 (data for most recent year)

Setting: provincial, public healthcare system

Males: 103 Females: 98

NA

NA

New: GW cases preceded by a 12-month, disease-free period of GW care

Population: population covered by the public drug plan (41% of total population)

 

Age: all ages

 

Marra et al., 2009 [32]

Canada (British Columbia) / 1998-2006

Setting: physicians, hospitals and STI clinics (province-wide)

Overall: 126 Males: 131 Females: 121

NA

NA

New: GW cases preceded by a 12-month, disease-free period of GW care

Denominator: general population

 

Age: all ages

   

Kliewer et al., 2009 [33]

Canada (Manitoba) / 2004

Setting: physician offices and hospitals (province-wide)

Males: 154 Females: 120

NA

NA

New: GW cases preceded by a 12-month, disease-free period of GW care

Population: general population

 

Age: all ages

 

Kraut et al., 2010 [34]

Germany / 2005-06

Setting: physician offices and hospitals

Overall: 170 Males: 148 Females: 191

NA

NA

New: GW cases preceded by a 12-month, disease-free period of GW care

Population: a sample of the German population with statutory health insurance covering all geographical regions (N = 14 million)

 

Age: 10–79 years

 

Vittori et al., 2008 [28]

Italy / 2005

Setting: random sample of 78 gynecologists stratified by geographic region

Females: 430

Females: 110 (early); 60 (late)

NA

New: patients without previous history of GWs. Early recurrent: patients who had a GW episode within the previous 12 months

Population: female population visiting gynecologists

Late recurrent: patients who had a GW episode more than 12 months prior to study episode

Age: 14–64 years

 

van den Broek et al., 2010 [39]

Netherlands / 2006

Setting: GPs (representative national sample) and all Dutch STI centers

NA

NA

Males: 94* Females: 137*

Any: patients with symptoms of GWs

Population: general population

 

Age: all ages

 

Castellsague et al., 2009 [29]

Spain / 2005

Setting: representative sample of dermatologists, gynecologists and urologists in the public healthcare setting from 6 autonomous regions

Overall: 118 Males: 137 Females: 100

Overall: 43 Males: 47 Females: 39

Overall: 160 Males: 184 Females: 137

New: patients without any prior GW diagnosis

Population: general population (68% of total Spanish population)

   

Recurrent: patients who had a previous GW episode

Age: 14–64 years

   

Cassell et al., 2006 [40]

UK / 1998-2000

Setting: representative sample of GPs and GUM clinics

NA

NA

Males: 308 Females: 236

Any: all patients diagnosed with GWs

Population: general population

 

Age: all ages

 

Desai et al., 2011 [38]

UK (England) / 2006-2009

Setting: representative sample of GPs and all GUM clinics

Overall: 157 Males: 168 Females: 142

Overall: 133 Males: 163 Females: 103

Overall: 289 Males: 331 Females: 245

New: patients diagnosed with GWs for the first time during study period

Population: general population

   

Recurrent: episode occurring more than 8 weeks after last attendance

Age: all ages

   

Hoy et al., 2009 [35]

USA / 2004

Setting: physicians, hospitals, ERs reimbursed by 5 geographically dispersed private health plans

Overall: 120 Males: 110 Females: 120

NA

NA

New: individuals not having a medical or pharmacy claim associated with GWs in the previous 12 months to the index medical claim

Population: privately-insured population (N = 3.8 million)

 

Age: all ages

 

Insinga et al., 2003 [2]

USA / 2000

Setting: physicians, hospitals, ERs reimbursed by private health plans

NA

NA

Overall: 170 Males: 167 Females: 165

Any: all patients diagnosed with GWs

Population: privately-insured population (N = 3.7 million)

 

Age: all ages

 

Koshiol et al., 2004 [36]

USA / 2001

Setting: physicians, hospitals, ERs reimbursed by approximately 30 private health plans (national)

Overall: 205

NA

NA

New: no GW-related claims during the initial 12 months of continuous enrollment

Population: privately-insured population (N = 5.9 million)

Age: 15–59 years

Data based on prospectively collected physician reports

Lin et al., 2010 [30]

China (Hong Kong) / 2009

Setting: sample of 170 physicians operating in private clinics (GPs, obstetricians/gynecologists and dermatologists/venereologists) and all 5 local social hygiene clinics

Overall: 204 Males: 292 Females: 125

NA

NA

New: cases with no past symptoms or clinical diagnosis of GWs

Population: general population

 

Age: ≥18 yrs

 

Monsonego et al., 2007 [43]

France / 2005

Setting: nationwide random sample of 212 gynecologists

Females: 176

Females: 48

Females: 229

NA

Population: general female population

Age: 15–65 years

Hillemanns et al., 2008 [37]

Germany / 2005

Setting: representative sample of 129 gynecologists

Females: 114 (age 14–65); 76 (all ages)

Females: 35 (age 14–65); 23 (all ages)

Females: 149 (age 14–65); 99 (all ages)

New: patients diagnosed with GWs at the time of the visit

Population: general female population

Recurrent: patients with previous episodes of GWs that had resolved

Age: 14–65 years and all ages

Resistant: patients with previous episodes of GWs that had not resolved with treatment

Pasciullo et al., 2011 [41]

Italy / 2009

Setting: geographically representative sample of 650 GPs

NA

NA

Overall: 8 Males: 10 Females: 4

Any: all patients diagnosed with GWs

Population: population listed with the above GPs (N = 959,778)

 

Age: ≥15 years

 

Data based on genital examinations of samples from the general population

Anic et al., 2011 [8]

Multinational (USA, Mexico, Brazil) / 2005-2009

Setting: prospective study investigating the natural history of HPV infection in men (HPV in Men study)

Males: 235

NA

NA

NA

Population: males with no previous history of GW participating in the above study (N = 2,487)

Age: 18–70 years

Sasagawa et al., 2011 [42]

Japan / 2009

Setting: 63 private clinics in 5 districts

NA

NA

Females: 251

NA

  

Population: women attending Pap screening in above private clinics (N = 60,414)

    
  

Age: 10–59 years

    
  1. AGWs anogenital warts, ER emergency room, GP general practitioner, GUM genitourinary medicine, GWs genital warts, N number of individuals examined or followed, NA not available, STI sexually transmitted infection.
  2. * GP and STI center rates combined.
  3. †About 90% of the German population is covered by the statutory health insurance [34].