Risk factors for alcohol-related injury experienced within a year: results of a nationwide large-scale internet survey.

Authors

Kazuya Okushin, Takahiro Tabuchi, Takashi Yoshioka, Tomohiro Tanaka, Takuma Kaneko, Keisuke Mabuchi, Yuki Matsushita, Tomoharu Yamada, Takuma Nakatsuka, Tatsuya Minami, Masaya Sato, Yotaro Kudo, Kazuhiko Koike, Mitsuhiro Fujishiro, Ryosuke Tateishi

Published in

Addictive behaviors reports. Volume 24. Pages 100735. Epub Aug 12, 2026.

Abstract

Alcohol-related injuries, including self-injury and harm to others, have multifactorial causes other than alcohol consumption amount and frequency. Here we investigated the determinants of alcohol-related self-injury and harm to others by focusing on the characteristics of alcoholic beverages.
We analyzed data from a nationwide internet-based cohort survey conducted in Japan in 2024-2025. Among 11,443 continuous drinkers, alcohol-related self-injury and harm to others within the past year were assessed. Weighted logistic regression models using inverse probability weighting were used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) with adjustment for demographic, socioeconomic, and clinical characteristics, drinking behaviors, and beverage types.
Of the study population, 285 and 122 participants experienced alcohol-related self-injury and harm to others, respectively. Younger age and frequent heavy episodic drinking showed strong dose-response associations with self-injury and harm to others. Diabetes was associated with increased risk, and depression showed a positive but not consistently statistically significant association. Wine consumption was negatively associated with self-injury (aOR, 0.40; 95% CI, 0.24-0.65; p < 0.001), whereas beer and moderate alcohol-by-volume (4-7%) ready-to-drink beverages were negatively associated with harm to others (beer: aOR, 0.38; 95% CI, 0.15-0.96; p = 0.04; 4-7% chū-hai: aOR, 0.29; 95% CI, 0.13-0.63; p = 0.002).
Alcohol-related self-injury and harm to others share common and distinct determinants across demographic, clinical, behavioral, and beverage-related factors. These findings suggest that alcohol-related injury risk is primarily driven by drinking pattern and intensity, while beverage-specific associations may provide exploratory insights.

PMID:
42630707
Bibliographic data and abstract were imported from PubMed on 23 Aug 2026.

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