Table 1.

Characteristics of Study Sample

Characteristic	Pre–Guideline Change Groupa (n=1,626)	Post–Guideline Change Groupa (n=1,846)
Total visits, No.	4,847	5,005
Age, mean (SD), y	17.7 (1.6)	17.8 (1.7)
Visits per patient, mean (SD) [range], No.	3.0 (2.9) [1–28]	2.7 (2.5) [1–23]
Total Pap tests, No.	394	73
Total chlamydia screens, No.	502	37
Total chlamydia screens when Pap tested, No.	311	4

Pap=Papanicolaou.

^aRefers to patients seen before vs after the 2009 change in cervical cancer screening guidelines.