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Table 3 Ratings of SMS service and content

From: mHealth information for migrants: an e-health intervention for internal migrants in Vietnam

  n (out of 444) %
SMS service
Not very useful 6 1.4
Not useful 18 4.1
Neutral 42 9.5
Useful 288 64.9
Very useful 90 20.3
Content of SMS messages
Not useful 19 4.1
Neutral 36 8.1
Useful 216 48.6
Very useful 174 39.2