期刊
INTERNATIONAL JOURNAL OF CANCER
卷 130, 期 11, 页码 2645-2653出版社
WILEY
DOI: 10.1002/ijc.26255
关键词
alcohols; liver neoplasms; cohort studies; pooled analysis
类别
资金
- Ministry of Health, Labour and Welfare of Japan
Because studies of the association between alcohol intake and the risk of primary liver cancer use varying cut-off points to classify alcohol intake, it is difficult to precisely quantify this association by meta-analysis of published data. Furthermore, there are limited data for women in prospective studies of the dose-specific relation of alcohol intake and the risk of primary liver cancer. We analyzed original data from 4 population-based prospective cohort studies encompassing 174,719 participants (89,863 men and 84,856 women). After adjustment for a common set of variables, we used Cox proportional hazards regression to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of primary liver cancer incidence according to alcohol intake. We conducted a meta-analysis of the HRs derived from each study. During 1,964,136 person-years of follow-up, 804 primary liver cancer cases (605 men and 199 women) were identified. In male drinkers, the multivariate-adjusted HRs (95% CI) for alcohol intakes of 0.122.9, 23.045.9, 46.068.9, 69.091.9 and =92.0 g/day, as compared to occasional drinkers, were 0.88 (0.571.36), 1.06 (0.701.62), 1.07 (0.691.66), 1.76 (1.082.87) and 1.66 (0.982.82), respectively (p for trend = 0.015). In women, we observed a significantly increased risk among those who drank =23.0 g/day, as compared to occasional drinkers (HR: 3.60; 95% CI: 1.2210.66). This pooled analysis of data from large prospective studies in Japan indicates that avoidance of (1) heavy alcohol drinking (=69.0 g alcohol/day) in men and (2) moderate drinking (=23.0 g alcohol/day) in women may reduce the risk of primary liver cancer.
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