Effects of Proactive Calls: A Randomized Controlled Study
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 195
- 试验地点
- 1
- 主要终点
- Theoretical loss
研究概览
简要总结
Customers/gamblers gambling at Norsk Rikstoto (gambling monopolist in Norway providing horse gambling products with potential gambling problems will be randomly allocated to receive a proactive phone call (encouraging them to change their gambling behavior - e.g., be lowering the loss limit) or to a control condition. Outcomes will be short and long terms registered gambling behavior.
详细描述
Norsk Rikstoto (gambling monopolist in Norway providing horse gambling products) enforces registered play, hence all gambling transactions and outcomes of stakes of all customers are registered and stored for 5 years. Based on daily algorithms high risk gamblers are identified. Gamblers 18-50 years who for at least 5 of the last 30 days have been identified as high risk gamblers will according to a 1.5:1 ratio be allocated to a proactive call condition or to a control condition.
The call will be based on principles from motivating interviewing and will contain encouragements to alter gambling behavior (e.g., lowering loss limits). Primary outcome comprises theoretical loss (total bet x house advantage ((100% - payback%) / 100)). Secondary outcomes comprises total stakes made by the customer and loss percentage (proportion of stake that is lost). Baseline data comprises gambling behavior the 30 days before the call. Short-term effects comprise cumulative registered gambling behavior the first 90 days after the call whereas long-term effects consist of cumulative registered gambling behavior day 91-180 after the call. A random block design will be used where 15 eligible customers each week will be allocated either to the proactive call condition (n=9) or to the control condition (n=6).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Being identified (based on an algorithm used by Norsk Rikstoto/the gambling provider) as a high risk gambler at least 5 of the last 30 days
排除标准
- •Previously received a proactive call from Norsk Rikstoto
研究组 & 干预措施
Control
No contact/not reaching out
One proactive call
The call is based on principles of motivating interviewing and will in addition encourage the recipient to change his/hers gambling behavior (e.g., lower pre-set loss limits).
干预措施: Proactive call (Behavioral)
结局指标
主要结局
Theoretical loss
时间窗: Change from baseline (30 days before the call) to day 1-90 after the call (short-term effect) and change from baseline (30 days before the call) to day 91-180 after the call (long-term effect).
Total bet x house advantage ((100%-payback%) / 100)
次要结局
- Total stake(Change from baseline (30 days before the call) to the first 90 days after the call (short term) and change from baseline to day 91-180 after the call)
- Loss percentage(Change from baseline (30 days before the call) to day 1-90 after the call (short-term effect) and change from baseline (30 days before the call) to day 91-180 after the call (long-term effect).)