Prevalence and 3-year persistence of human papillomavirus serotypes in asymptomatic patients in Northern Mexico.

Objective: To investigate clinical outcomes and 3-year persistence of human papillomavirus (HPV) infections among women in Mexico.

Methods: A prospective study enrolled sexually active women attending primary healthcare clinics in metropolitan Monterrey, Mexico, between June 3 and August 30, 2002. Baseline data were collected and participants underwent HPV screening.