Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
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DOI：
10.1136/bmjgh-2019-001604
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发表时间：
2019-10-01
影响因子：
8.1
通讯作者：
Hyder, Adnan A.
中科院分区：
文献类型：
--
作者：
Gibson, Dustin G.;Wosu, Adaeze C.;Hyder, Adnan A.
背景：移动电话的全球普及为改进非传染性疾病（NCD）数据收集提供了机会，可以使用交互式语音应答（IVR）调查采访参与者。我们评估了在孟加拉国和乌干达进行的一项非传染性疾病IVR调查中，通话时间激励是否能提高合作和响应率。参与者被随机分为三组：a)无激励，b) 1X激励或c) 2X激励，其中X被设置为50孟加拉国塔卡（0.60美元）和5000乌干达先令（UGX； 1.35美元）的播放时间。年龄在18岁及以上的成年人使用随机数字拨号进行了抽样调查。采用对数二项回归模型对美国民意研究协会定义的主要结果——合作和反应率进行分析。结果2017年6月14日至7月14日期间，孟加拉国共拨打了440262个电话。对照组的配合率和响应率分别为28.8%（353/1227）和19.2%(580/3016)，50塔卡组的配合率和响应率分别为39.2%（370/945）和23.9%(507/2120)，100塔卡组的配合率和响应率分别为40.0%（362/906）和24.8%（532/2148）。与对照组相比，50 Taka组（风险比（RR） 1.36, 95% CI 1.21至1.53）和（RR 1.24, 95% CI 1.12至1.38）以及100 Taka组（RR 1.39, 95% CI 1.23至1.56）和（RR 1.29, 95% CI 1.16至1.43）的配合率和应答率分别显著高于对照组。在乌干达，2017年3月26日至4月22日共拨打了174 157个电话。对照组的配合率分别为44.7%（377/844）和35.2% (552/1570)，5000 UGX组为57.6%（404/701）和39.3% (508/1293)，10000 UGX组为58.8%（421/716）和40.3%（535/1328）。与对照组相比，5000 UGX组（RR 1.29, 95% CI 1.17至1.42）和（RR 1.12, 95% CI 1.02至1.23）和10000 UGX组（RR 1.32, 95% CI 1.19至1.45）和（RR 1.15, 95% 1.04至1.26）的配合率和反应率显著更高。在两种不同的设置中，提供通话时间激励显著提高了IVR调查的合作率和响应率，两种激励金额之间没有显著差异。
Background The global proliferation of mobile phones offers opportunity for improved non-communicable disease (NCD) data collection by interviewing participants using interactive voice response (IVR) surveys. We assessed whether airtime incentives can improve cooperation and response rates for an NCD IVR survey in Bangladesh and Uganda.Methods Participants were randomised to three arms: a) no incentive, b) 1X incentive or c) 2X incentive, where X was set to airtime of 50 Bangladesh Taka (US$0.60) and 5000 Ugandan Shillings (UGX; US$1.35). Adults aged 18 years and older who had a working mobile phone were sampled using random digit dialling. The primary outcomes, cooperation and response rates as defined by the American Association of Public Opinion Research, were analysed using log-binomial regression model.Results Between 14 June and 14 July 2017, 440 262 phone calls were made in Bangladesh. The cooperation and response rates were, respectively, 28.8% (353/1227) and 19.2% (580/3016) in control, 39.2% (370/945) and 23.9% (507/2120) in 50 Taka and 40.0% (362/906) and 24.8% (532/2148) in 100 Taka incentive groups. Cooperation and response rates, respectively, were significantly higher in both the 50 Taka (risk ratio (RR) 1.36, 95% CI 1.21 to 1.53) and (RR 1.24, 95% CI 1.12 to 1.38), and 100 Taka groups (RR 1.39, 95% CI 1.23 to 1.56) and (RR 1.29, 95% CI 1.16 to 1.43), as compared with the controls. In Uganda, 174 157 phone calls were made from 26 March to 22 April 2017. The cooperation and response rates were, respectively, 44.7% (377/844) and 35.2% (552/1570) in control, 57.6% (404/701) and 39.3% (508/1293) in 5000 UGX and 58.8% (421/716) and 40.3% (535/1328) in 10 000 UGX groups. Cooperation and response rates were significantly higher, respectively in the 5000 UGX (RR 1.29, 95% CI 1.17 to 1.42) and (RR 1.12, 95% CI 1.02 to 1.23), and 10 000 UGX groups (RR 1.32, 95% CI 1.19 to 1.45) and (RR 1.15, 95% 1.04 to 1.26), as compared with the control group.Conclusion In two diverse settings, the provision of an airtime incentive significantly improved both the cooperation and response rates of an IVR survey, with no significant difference between the two incentive amounts.