Telephone and letter-based motivational interventions with high expenditure gamblers have significant short and long term positive effects on gambling and use of responsible gambling tools. This report examines how different subtypes of gamblers, based upon patterns of play, are differentially affected. A randomized controlled trial design with three conditions (n = 1003 in each): feedback intervention by letter, telephone or a no-contact control condition. Subtypes of gamblers were derived by latent class analyses (LCA) based upon gambling behavior pre intervention. The participants were customers of Norsk Tipping gambling platforms. 1003 statistical triplets from the top 0.5% of customers based upon annual expenditure, matched on sex, age, and net losses. Primary outcome measure was gambling theoretical loss (TL), derived from the Norsk Tipping customer database. The LCA identified six subtypes: High Casino, High Sport, High Lottery, High Video lottery terminal (VLT), Lottery/Mix and Bingo/Casino. There were almost no differences in change in TL between the six subtypes of gamblers receiving the letter or telefone interventions respectively. However, the choice of contact by letter or telephone did have different effects for the different gambling subtypes. Sending a letter seems like a cost effective alternative to telephone contact for the High Lottery type, but telephone contact performs better for High Casino, High Sport and High VLT customers. Responsible gambling interventions can be improved by subtyping of gamblers.

具有高支出赌徒的基于电话和信件的动机干预对赌博和使用负责任的赌博工具具有重大的短期和长期积极影响。这份报告根据游乐模式研究了赌徒的不同亚型是如何受到不同影响的。随机对照试验设计，具有以下三种条件（每种条件下n = 1003）：通过信件，电话或无接触控制条件进行反馈干预。赌徒的亚型是根据潜在的赌博行为干预前的潜在类别分析（LCA）得出的。参与者是Norsk Tipping赌博平台的客户。根据年度支出，从前0.5％的客户中抽取1003个统计三元组，并按性别，年龄和净损失进行匹配。主要结局指标是赌博理论损失（TL），衍生自Norsk Tipping客户数据库。LCA确定了六个子类型：高级娱乐场，高级体育，高级彩票，高级视频彩票终端（VLT），彩票/混合和宾果/赌场。分别接受信件或电话服务干预的六种赌徒的TL的变化几乎没有差异。但是，对于不同的赌博亚型，通过信件或电话进行联系的选择确实会产生不同的影响。对于高乐透类型，发送信件似乎是一种比电话联系更具成本效益的选择，但是电话联系对于高级娱乐场，高级体育和高级VLT客户而言表现更好。可以通过对赌徒进行分型来改善负责任的赌博干预措施。彩票/混合和宾果/赌场。分别接受信件或电话服务干预的六种赌徒的TL的变化几乎没有差异。但是，对于不同的赌博亚型，通过信件或电话进行联系的选择确实会产生不同的影响。对于高乐透类型，发送信件似乎是一种比电话联系更经济有效的选择，但是对于高赌场，高运动和高VLT客户而言，电话联系的效果更好。可以通过对赌徒进行分型来改善负责任的赌博干预措施。彩票/混合和宾果/赌场。分别接受信件或电话服务干预的六种赌徒的TL的变化几乎没有差异。但是，对于不同的赌博亚型，通过信件或电话进行联系的选择确实会产生不同的影响。对于高乐透类型，发送信件似乎是一种比电话联系更经济有效的选择，但是对于高赌场，高运动和高VLT客户而言，电话联系的效果更好。可以通过对赌徒进行分型来改善负责任的赌博干预措施。对于高乐透类型，发送信件似乎是一种比电话联系更经济有效的选择，但是对于高赌场，高运动和高VLT客户而言，电话联系的效果更好。可以通过对赌徒进行分型来改善负责任的赌博干预措施。对于高乐透类型，发送信件似乎是一种比电话联系更经济有效的选择，但是对于高赌场，高运动和高VLT客户而言，电话联系的效果更好。可以通过对赌徒进行分型来改善负责任的赌博干预措施。