Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda

BackgroundThe 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...

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Main Authors: Saifuddin Ahmed, Adaeze C. Wosu, George William Pariyo, Iqbal Ansary Khan, Elizeus Rutebemberwa, Meerjady Sabrina Flora
Format: Article
Language:English
Published: BMJ Publishing Group 2019-09-01
Series:BMJ Global Health
Online Access:https://gh.bmj.com/content/4/5/e001604.full
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author Saifuddin Ahmed
Adaeze C. Wosu
George William Pariyo
Iqbal Ansary Khan
Elizeus Rutebemberwa
Meerjady Sabrina Flora
author_facet Saifuddin Ahmed
Adaeze C. Wosu
George William Pariyo
Iqbal Ansary Khan
Elizeus Rutebemberwa
Meerjady Sabrina Flora
author_sort Saifuddin Ahmed
collection DOAJ
description BackgroundThe 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.MethodsParticipants 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.ResultsBetween 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% CI 1.04 to 1.26), as compared with the control group.ConclusionIn 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.Trial registration numberNCT03768323.
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spelling doaj.art-926311c9532b4ee5899bc4d4b81bfc7b2022-12-21T22:49:30ZengBMJ Publishing GroupBMJ Global Health2059-79082019-09-014510.1136/bmjgh-2019-001604Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and UgandaSaifuddin Ahmed0Adaeze C. Wosu1George William Pariyo2Iqbal Ansary Khan3Elizeus Rutebemberwa4Meerjady Sabrina Flora51 Population, Family and Reproductive Health, Johns Hopkins University, Baltimore, Maryland, USA Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USAInternational Health, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USAInstitute of Epidemiology Disease Control and Research, Dhaka, Dhaka District, BangladeshMakerere University College of Health Sciences, Kampala, Kampala, UgandaInstitute of Epidemiology Disease Control and Research, Dhaka, Dhaka District, BangladeshBackgroundThe 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.MethodsParticipants 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.ResultsBetween 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% CI 1.04 to 1.26), as compared with the control group.ConclusionIn 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.Trial registration numberNCT03768323.https://gh.bmj.com/content/4/5/e001604.full
spellingShingle Saifuddin Ahmed
Adaeze C. Wosu
George William Pariyo
Iqbal Ansary Khan
Elizeus Rutebemberwa
Meerjady Sabrina Flora
Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
BMJ Global Health
title Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
title_full Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
title_fullStr Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
title_full_unstemmed Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
title_short Effect of airtime incentives on response and cooperation rates in non-communicable disease interactive voice response surveys: randomised controlled trials in Bangladesh and Uganda
title_sort effect of airtime incentives on response and cooperation rates in non communicable disease interactive voice response surveys randomised controlled trials in bangladesh and uganda
url https://gh.bmj.com/content/4/5/e001604.full
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