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. 2021 Apr;140:105257. doi: 10.1016/j.worlddev.2020.105257

Table 10.

Reported ‘informal mhealth’ usage in the preceding 4 weeks (weighted percentages). Base: all current mobile phone users.

Ghana (N = 592) Ethiopia (N = 1004) Malawi (N = 565) ALL (N = 2161)
Direct communication (with clients, volunteers, colleagues, etc.)
 Voice calls 98.6% 100.0% 99.3% 99.0%
 SMS/text messaging 72.3% 50.7% 95.4% 73.6%
 WhatsApp (or similar) to contact an individual 62.9% 3.6%*** 77.0% 47.8%
 Work-related group chat (e.g. WhatsApp) 78.2% 1.2%*** 75.5% 51.6%



Data collection and reporting
 Camera: capturing reports/paperwork 69.7% 21.5%*** 64.9% 52.3%
 Calculator: for collecting data or making reports 89.4% 74.6%* 94.9% 87.8%
 Sending data/reports via SMS/text 41.6% 33.8% 75.8%*** 50.8%
 Sending data/reports via WhatsApp (or similar) 61.1% 7.2%*** 70.6% 46.4%



Seeking information/functions online
 Via Facebook or other social media 18.5% 28.3% 16.2% 17.8%
 Via Google or other internet search 74.2%*** 12.9% 17.3% 34.9%
 Via Playstore (or similar) for health-related Apps 35.0%*** 2.0% 5.4% 13.9%



Other tools/functions
 Notepad (or similar) for making notes 8.7% 2.1% 16.4%* 8.9%
 Camera/video to record activities/events 74.2% 24.0%*** 69.9% 56.4%
 Camera to take images of patient symptoms 56.7%*** 17.0% 26.8% 33.5%
 Voice recording (e.g. for recording meetings) 12.1% 16.5% 33.0%*** 20.6%
 Calculator: calculating medicine dosages 78.4% 59.7%* 88.6% 76.6%
 Torch to work in the night 60.5% 62.9% 69.2% 65.7%
 Torch for patient examination 35.6% 38.5% 30.0% 32.7%
 Stopwatch (taking pulse or breathing rate) 36.9% 23.8% 45.0% 37.2%

Note: Meta-analysis: differences between countries: statistically significant results shown in bold: * p < 0.05, ** p < 0.01, ***p < 0.001.