Optimizing Network Connectivity for Mobile Health Technologies in sub-Saharan Africa

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Optimizing Network Connectivity for Mobile Health Technologies in sub-Saharan Africa

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Title: Optimizing Network Connectivity for Mobile Health Technologies in sub-Saharan Africa
Author: Siedner, Mark Jacob; Lankowski, Alexander; Musinga, Derrick; Jackson, Jonathon; Muzoora, Conrad; Hunt, Peter W.; Martin, Jeffrey N.; Bangsberg, David Roy; Haberer, Jessica

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Citation: Siedner, Mark J., Alexander Lankowski, Derrick Musinga, Jonathon Jackson, Conrad Muzoora, Peter W. Hunt, Jeffrey N. Martin, David R. Bangsberg, and Jessica E. Haberer. 2012. Optimizing network connectivity for mobile health technologies in sub-Saharan Africa. PLoS ONE 7(9): e45643.
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Abstract: Background: Mobile health (mHealth) technologies hold incredible promise to improve healthcare delivery in resource-limited settings. Network reliability across large catchment areas can be a major challenge. We performed an analysis of network failure frequency as part of a study of real-time adherence monitoring in rural Uganda. We hypothesized that the addition of short messaging service (SMS+GPRS) to the standard cellular network modality (GPRS) would reduce network disruptions and improve transmission of data. Methods: Participants were enrolled in a study of real-time adherence monitoring in southwest Uganda. In June 2011, we began using Wisepill devices that transmit data each time the pill bottle is opened. We defined network failures as medication interruptions of >48 hours duration that were transmitted when network connectivity was re-established. During the course of the study, we upgraded devices from GPRS to GPRS+SMS compatibility. We compared network failure rates between GPRS and GPRS+SMS periods and created geospatial maps to graphically demonstrate patterns of connectivity. Results: One hundred fifty-seven participants met inclusion criteria of seven days of SMS and seven days of SMS+GPRS observation time. Seventy-three percent were female, median age was 40 years (IQR 33–46), 39% reported >1-hour travel time to clinic and 17% had home electricity. One hundred one had GPS coordinates recorded and were included in the geospatial maps. The median number of network failures per person-month for the GPRS and GPRS+SMS modalities were 1.5 (IQR 1.0–2.2) and 0.3 (IQR 0–0.9) respectively, (mean difference 1.2, 95%CI 1.0–1.3, p-value<0.0001). Improvements in network connectivity were notable throughout the region. Study costs increased by approximately $1USD per person-month. Conclusions: Addition of SMS to standard GPRS cellular network connectivity can significantly reduce network connection failures for mobile health applications in remote areas. Projects depending on mobile health data in resource-limited settings should consider this upgrade to optimize mHealth applications.
Published Version: doi:10.1371/journal.pone.0045643
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3460947/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:10522890
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