Rate of HPV infection by age group in Asan Medical Center, Seoul, Korea, March 2002-December 2002 (N=389) (Joo WD et al.14). The overall prevalence of HPV infection was 12.6 (389/3091) and calculated 15.5% when standardized. The prevalence of HPV infection was 24.1% (14/58), 14.3% (64/446), 13.7% (165/1,206), 9.5% (93/977), 13.3% (50/376) and 10.7% (3/28) in the third, fourth, fifth, sixth, seventh, and eighth decade of age, respectively. The prevalence of HPV infection was significantly higher in patients between 20 and 30 yr than in other age groups (p=0.003).