Currie Shawn R, Hodgins David C, Wang JianLi, el-Guebaly Nady, Wynne Harold, Chen Sophie
Addiction Centre, Foothills Medical Centre, Calgary, AB, Canada.
Addiction. 2006 Apr;101(4):570-80. doi: 10.1111/j.1360-0443.2006.01392.x.
To examine the relationship between gambling behaviours and risk of gambling-related harm in a nationally representative population sample.
Risk curves of gambling frequency and expenditure (total amount and percentage of income) were plotted against harm from gambling.
Data derived from 19, 012 individuals participating in the Canadian Community Health Survey-Mental Health and Well-being cycle, a comprehensive interview-based survey conducted by Statistics Canada in 2002.
Gambling behaviours and related harms were assessed with the Canadian Problem Gambling Index.
Risk curves indicated the chances of experiencing gambling-related harm increased steadily the more often one gambles and the more money one invests in gambling. Receiver operating characteristic analysis identified the optimal limits for low-risk participation as gambling no more than two to three times per month, spending no more than 501-1,000 CAN dollars per year on gambling and investing no more than 1% of gross family income on gambling activities. Logistic regression modelling confirmed a significant increase in the risk of gambling-related harm (odds ratios ranging from 2.0 to 7.7) when these limits were exceeded.
Risk curves are a promising methodology for examining the relationship between gambling participation and risk of harm. The development of low-risk gambling limits based on risk curve analysis appears to be feasible.
在全国代表性人群样本中研究赌博行为与赌博相关危害风险之间的关系。
绘制赌博频率和支出（总额及收入百分比）的风险曲线，以对比赌博造成的危害。
数据来源于19012名参与加拿大社区健康调查——心理健康与幸福周期调查的个体，这是加拿大统计局于2002年开展的一项基于访谈的综合调查。
使用加拿大问题赌博指数评估赌博行为及相关危害。
风险曲线表明，一个人赌博越频繁、投入赌博的资金越多，遭受赌博相关危害的可能性就会稳步增加。受试者工作特征分析确定了低风险参与的最佳界限，即每月赌博不超过两到三次，每年在赌博上的支出不超过501 - 1000加元，且用于赌博活动的支出不超过家庭总收入的1%。逻辑回归模型证实，当超过这些界限时，赌博相关危害的风险会显著增加（优势比在2.0至7.7之间）。
风险曲线是研究赌博参与与危害风险之间关系的一种很有前景的方法。基于风险曲线分析制定低风险赌博界限似乎是可行的。
