International Comparative Study of HPV Vaccination and Issues in Japan.

2015 Fiscal Year Final Research Report

• Project/Area Number: 23590779
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Public health/Health science
• Research Institution: The University of Tokyo
• Principal Investigator: Yuji Koichiro 東京大学, 医科学研究所, 特任准教授 (70373199)
• Co-Investigator(Kenkyū-buntansha): NAKADA Haruka 東京大学, 医科学研究所, 特任研究員 (10592248)
• Project Period (FY): 2011-04-28 – 2016-03-31
• Keywords: 子宮頸がん / 予防 / ワクチン / ヒトパピローマウイルス / HPV / がん / 報道 / 公費助成

Outline of Final Research Achievements

A national agreement on HPV vaccination was achieved relatively quickly in Japan. To identify the role of print and online media references, as factors potentially responsible for the relatively rapid national acceptance of HPV vaccination in Japan, a method of text mining was performed to select keywords. The selected keywords were classified as positive, negative, or neutral, and the transition of the frequency of their appearance was analyzed. The number of positive and neutral keywords appearing in newspaper articles increased sharply while the number of negative keywords remained low. The numbers of positive, neutral, and negative keywords appearing in Web pages increased gradually and did not significantly differ by category. The rapid development of a national agreement regarding HPV vaccination in Japan may be primarily attributed to the advocacy of vaccine beneficiaries, supported by advocacy by celebrities and positive reporting by print and online media.

Free Research Field

公衆衛生学・健康科学