TY - JOUR T1 - Keep it simple: designing a user-centred digital information system to support chronic disease management in low/middle-income countries JF - BMJ Health & Care Informatics JO - BMJ Health Care Inform DO - 10.1136/bmjhci-2022-100641 VL - 30 IS - 1 SP - e100641 AU - Daniel Burka AU - Reena Gupta AU - Andrew E Moran AU - Jennifer Cohn AU - Sohel R Choudhury AU - Tim Cheadle AU - Rahul Mullick AU - Thomas R Frieden Y1 - 2023/01/01 UR - http://informatics.bmj.com/content/30/1/e100641.abstract N2 - Objective Implement a user-centred digital health information system to facilitate rapidly and substantially increasing the number of patients treated for hypertension in low/middle-income countries.Methods User-centred design of Simple, an offline-first app for mobile devices to record patient clinical visits and a web-based dashboard to monitor programme performance.Results The Simple mobile application scaled rapidly over the past 4 years to reach more than 11 400 primary care facilities in four countries with over 3 million patients enrolled. Simple achieved median duration for new patient registration of 76 s (IQR 2 s) and follow-up visit entry of 13 s (IQR 1 s).Conclusions A fast, easy-to-use digital information system for hypertension programmes that accommodates healthcare worker time constraints by minimising data entry and focusing on key performance indicators can successfully reach scale in low-resource settings.All data relevant to the study are included in the article or uploaded as supplemental information. All referenced data are derived from published material and can be accessed where cited. ER -