前瞻性队列研究电视观看时间与肺癌发病率：来自日本癌症合作研究的结果。
Prospective cohort study on television viewing time and incidence of lung cancer: findings from the Japan Collaborative Cohort Study.
机构信息
Department of Public Health, Hokkaido University Graduate School of Medicine, N15 W7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.
出版信息
Cancer Causes Control. 2013 Aug;24(8):1547-53. doi: 10.1007/s10552-013-0231-z. Epub 2013 May 18.
PURPOSE
To ascertain whether prolonged television viewing time was associated with lung cancer incidence in Japanese adults aged 40-79 years from a nationwide large-scale cohort study.
METHODS
A total of 54,258 adults (23,090 men and 31,168 women) without a history of cancer at baseline (1988-1990) were enrolled and followed for a median of 15.6 years. The Cox proportional hazard model was used to calculate hazard ratios (HRs) and 95 % confidence interval (CI) for lung cancer according to television viewing time adjusted for age and other possible confounding factors.
RESULTS
During the study period, 798 participants were diagnosed with lung cancer. The HR of male participants who watched television for more than 4 h daily was 1.36 (95 % CI 1.04-1.80) compared with <2 h/day.
CONCLUSION
Our findings suggest that reducing the amount of time spent watching television may be beneficial for preventing lung cancer.
目的
通过一项全国范围内的大规模队列研究，确定 40-79 岁日本成年人看电视时间延长是否与肺癌发病率有关。
方法
共有 54258 名成年人（23090 名男性和 31168 名女性）在基线（1988-1990 年）时无癌症病史，随访时间中位数为 15.6 年。使用 Cox 比例风险模型计算按年龄和其他可能混杂因素调整后的肺癌发病风险比（HR）和 95%置信区间（CI）。
结果
在研究期间，有 798 名参与者被诊断患有肺癌。与每天看电视<2 小时的男性参与者相比，每天看电视超过 4 小时的男性参与者的 HR 为 1.36（95%CI 1.04-1.80）。
结论
我们的研究结果表明，减少看电视的时间可能有益于预防肺癌。
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