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. 2019 Sep 26;7(9):e12407. doi: 10.2196/12407

Table 2.

Mobile phone accessibility, reliability, and use.

Caregiver variable Value
Accessibility, n (%)

Access (whole sample, n=103)


Owns a mobile phone 97 (94.2)


Daily access, but do not own 3 (2.9)


Unreliable access, do not own 3 (2.9)

Mobile phone owners (n=97)


Cell is primary phone 97 (100.0)


Smartphone device 81 (83.5)



Smartphone type




iPhone 13 (16.0)




Android 57 (70.4)




Windows 4 (4.9)




Other 7 (8.6)

Service type (n=97)


Pay-as-you-go 65 (67.0)


Yearly 32 (33.0)
Reliability (those with access, n=100), n (%)

Mobile number changed last year


Never 64 (64.0)


Once 21 (21.0)


Twice 8 (8.0)


More than thrice 7 (7.0)

Disruptions in mobile phone connections


Never 28 (28.0)


Rarely 48 (48.0)


Sometimes 20 (20.0)


Often 2 (2.0)


Always 2 (2.0)
Use (those with access, n=100)

Text message limit, n (%)


No 92 (92.0)


Yes 3 (3.0)


Not sure 5 (5.0)

Use mobile to text, n (%) 97 (97.0)

Use mobile to email, n (%) 76 (76.0)

Use mobile to take pictures, n (%) 93 (93.0)

Use mobile to play music, n (%) 82 (82.0)

Use mobile to download mobile applications, n (%) 84 (84.0)

Use mobile to access internet, n (%) 92 (92.0)

Use mobile most for, n (%)


Text 59 (59.0)


Email 8 (8.0)


Pictures 3 (3.0)


Music 7 (7.0)


Apps 4 (4.0)


Internet 19 (19.0)

Regular internet use (at least once a week), n (%) 92 (92.0)

Access internet from which device most?, n (%)


Cell 58 (58.0)


Other device 13 (13.0)


Both equally 21 (21.0)

  Not sure 8 (8.0)

Outcome of outgoing clinic calls to caregivers' mobile phone (n=2776), n (%)


Connected 2698 (97.2)


Caregiver reached 1311 (47.2)


Left message 1263 (45.5)


Unable to leave voice message 124 (4.5)


Disconnected 75 (2.7)


Unknown/missing details 3 (0.1)

Number of unreachable days, median (range)


Number of disconnected days 14 (2)


Number of unable to leave voice message days 28 (2)