Characterization of patients in present study (J-HERS 2021)
The age distribution of the included patients is shown in Table 1. Most
patients (74%) visited the clinics for cervical cancer screening, 14%
visited for examinations of abnormal cytology results or follow-up
regarding a history of CIN, and 12% visited for common obstetrics and
gynecologic disorders or follow-up regarding benign diseases. Two
hundred and ninety-nine patients (20%) underwent prophylactic HPV
vaccination (Table.1). Among them, 54 (19%) received bivalent vaccines,
28 (10%) received quadrivalent vaccines, 5 (1.8%) received nonavalent
vaccines, and 191 (69%) did not know the type of vaccine they had
received. There was no so much difference in the rate of HPV vaccination
according to the reason for the clinic visit (Table 1). Aveilable data
showed that 156 subjects (79%) received the HPV vaccine at 12 to 16
years of age.