Kaiser Family Foundation. Copyright 2007 Advisory Board Kaiser and Company Family Foundation. All rights reserved.. About 26 percent of U.S. Girls, women ages 14 to 59 have HPV Of U.S. Women and girls ages 14 to 59, about 24.9 million women, or 26.8 percent, have the human being papillomavirus, and about 2 percent of females and girls in this group possess HPV strains 16 or 18, which together cause about 70 percent of cervical cancer cases, regarding to a scholarly study published in the Feb.Nevertheless, a higher-than-expected advantage was noted in the low-hematocrit group. The main study findings were in keeping with those attained in the prespecified subgroups. Not unexpectedly for a pragmatic trial in scientific practice that tested the efficacy of different therapeutic targets,22,23 not absolutely all patients were preserved at the designated hematocrit focus on. However, the intention-to-treat evaluation showed positive results despite the variability.