Harvard Medical School, Boston, USA.
J Gambl Stud. 2007 Sep;23(3):347-62. doi: 10.1007/s10899-007-9067-3. Epub 2007 Jun 17.
Internet gambling is growing rapidly, as is concern about its possible effect on the public's health. This paper reports the results of the first prospective longitudinal study of actual Internet sports gambling behavior during eight study months. Data include recorded fixed-odds bets on the outcome of sporting contests and live-action bets on the outcome of events within contests for 40,499 Internet sports gambling service subscribers who enrolled during February 2005. We tracked the following primary gambling behaviors: daily totals of the number of bets made, money bet, and money won. We transformed these variables into measures of gambling involvement. We analyzed behavior for both fixed-odds and live-action bets. The median betting behavior of the 39,719 fixed-odds bettors was to place 2.5 bets of 4 euro (approximately $5.3 US) every fourth day during the median 4 months from first to last bet. This typical pattern incurred a loss of 29% of the amount wagered. The median betting behavior of the 24,794 live-action bettors was to place 2.8 wagers of 4 euro every fourth day during the median duration of 6 weeks at a loss of 18% of the amount wagered. We also examined the behavior of empirically determined groups of heavily involved bettors whose activity exceeded that of 99% of the sample.
网络赌博发展迅速，人们对其可能对公众健康造成的影响感到担忧。本文报告了首次对 8 个月研究期间实际网络体育博彩行为进行前瞻性纵向研究的结果。数据包括在 2005 年 2 月期间注册的 40499 名网络体育博彩服务用户记录的体育比赛结果的固定赔率投注和比赛中事件结果的现场投注。我们跟踪了以下主要博彩行为：每日投注次数、投注金额和赢钱金额。我们将这些变量转化为博彩参与度的衡量标准。我们对固定赔率和现场投注进行了分析。25259 名固定赔率投注者的中位数博彩行为是在第一次到最后一次投注的中位数 4 个月内，每隔四天进行 2.5 次 4 欧元（约合 5.3 美元）的投注。这种典型模式导致投注金额的 29%损失。24794 名现场投注者的中位数博彩行为是在中位数 6 周的时间内，每隔四天进行 2.8 次 4 欧元的投注，损失了投注金额的 18%。我们还研究了超过 99%的样本的活跃度的高度活跃博彩者群体的行为。
