≥75岁老年人的牙齿数量与髋部骨折发病率:OHSAKA研究。

IF 3.7 2区 医学 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH Journal of Epidemiology Pub Date : 2025-01-25 DOI:10.2188/jea.JE20240165
Naoko Otsuki, Tomoaki Mameno, Yuya Kanie, Masahiro Wada, Maki Shinzawa, Kazunori Ikebe, Ryohei Yamamoto
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Number of teeth and incidence of hip fracture in older adults aged ≥75 years: the OHSAKA study.

Background: Several studies reported an association between the number of teeth and the incidence of hip fractures in observational studies, mainly in middle-aged adults. This retrospective cohort study aimed to clarify the association between the number of teeth and the incidence of hip fractures.

Methods: In this retrospective cohort study, a total of 256,772 participants aged 75 years or older who underwent public dental checkups in Japan were evaluated. Exposure in this study was the number of teeth, with a maximum number of 28, excluding third molars. Outcome measures were the incidence of hip fractures needing surgery, using the Japanese procedure codes in medical claims.

Results: A total of 190,998 participants met the inclusion criteria and were available for analysis. Adjusted Fine and Gray models identified a significant association between the number of teeth, including sound, filled, and decayed teeth, and the incidence of hip fractures among women but not for men. The continuous net reclassification improvement (NRI) of the sound and filled teeth count model increased by 0.078 compared with that of the sound, filled, and decayed teeth count model among women.

Conclusions: The number of sound and filled teeth predicted the risk of hip fractures in women, whereas no association was observed between the number of teeth and hip fractures in men.

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来源期刊
Journal of Epidemiology
Journal of Epidemiology 医学-公共卫生、环境卫生与职业卫生
CiteScore
7.50
自引率
4.30%
发文量
172
审稿时长
6-12 weeks
期刊介绍: The Journal of Epidemiology is the official open access scientific journal of the Japan Epidemiological Association. The Journal publishes a broad range of original research on epidemiology as it relates to human health, and aims to promote communication among those engaged in the field of epidemiological research and those who use epidemiological findings.
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