Risk factors for infection of the anorectal area with multiple oncogenic HPV (n = 335).

Abbreviations: HAART, highly active anti-retroviral therapy; MSM, men who have sex with men; STIs, sexual transmitted infections; VL, viral load†The smoking index was evaluated in occasional and daily smokers and defined as the number of cigarettes per day multiplied by the number of smoking years.Risk factors for infection of the anorectal area with multiple oncogenic HPV (n = 335).