論文

国際誌
2018年10月

Prescription pattern and trend of oral contraceptives in Japan: A descriptive study based on pharmacy claims data (2006 - 2014).

Sexual & reproductive healthcare : official journal of the Swedish Association of Midwives
  • Takuya Kinoshita
  • ,
  • Shiro Tanaka
  • ,
  • Mieko Inagaki
  • ,
  • Masato Takeuchi
  • ,
  • Koji Kawakami

17
開始ページ
50
終了ページ
55
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.srhc.2018.06.004

OBJECTIVE: The use of combined oral contraceptives (COC) as a contraceptive method is still limited in Japan, used only by 1.1% of women of reproductive age. The usage pattern of COC, such as continuation and preparation switch, between COC generations was investigated using large datasets. METHODS: This descriptive study spanning from 2006 to 2014 used nationwide prescriptions based on administrative databases, including both reimbursed and non-reimbursed drugs. All the first-time COC users were included as a cohort. Usage patterns considering trends, continuation, and switch of COC generations were also investigated. RESULTS: Of the 38,123 patients, the overall mean age at initial use of COC was 32.9 years. Of the first-time users, 51.2%, 23.7%, 5.6%, and 19.5% received first-, second-, third-, and fourth-generation COCs, respectively. The overall rate of continuation was 59.1%, and the rate of first-time use with switching to other generations within 180 days was 3.1%. CONCLUSION: We revealed the actual usage of COC in Japan with frequent prescriptions of first- or fourth-generation COCs and relatively high age at initial use. Moreover, the COC continuation rate was low, and switch was limited. Further studies into its proper usage are recommended.

リンク情報
DOI
https://doi.org/10.1016/j.srhc.2018.06.004
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/30193720

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