Table 1.

Summary of changes in the USPSTF guidelines for Pap smear screening.

	Guideline prior to 2012	Updated guideline release in March 2012
Frequency of screening	At least every 3 years	Every 3 years
Age to begin screening	Within 3 years of initiating sexual activity, or age 21	Age 21
Human papillomavirus (HPV) testing	Insufficient evidence to make a recommendation	No HPV screening for those under age 30