Table 1.
Cohort characteristics.
| Cohort characteristics | Total cohort (N=385) | Abnormal result (n=138) | Normal result (n=247) | |
| Age (years), median (IQR) | 32 (26-39) | 30 (25-38) | 34 (26-4) | |
| Gender (female),n (%) | 251 (65.2) | 75 (54.3) | 176 (71.3) | |
| CD4 count, median (IQR) | 409 (272-549) | 224.5 (110-293) | 504 (419-654) | |
| Estimated household income (US $/month), n (%) |
|
|
||
|
|
<40 | 77 (20.0) | 20 (14.5) | 57 (23.2) |
|
|
40-80 | 81 (21.0) | 26 (18.8) | 55 (22.3) |
|
|
80-180 | 58 (15.1) | 30 (21.7) | 28 (11.3) |
|
|
>180 | 69 (17.9) | 26 (18.9) | 43 (17.4) |
|
|
Unknown/unable to estimate | 100 (26.9) | 36 (26.1) | 64 (25.9) |
| Educational attainment, n (%) |
|
|
|
|
|
|
Less than primary | 43 (11.2) | 12 (8.7) | 31 (12.6) |
|
|
Primary | 197 (51.2) | 71 (51.4) | 126 (51.2) |
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|
Secondary | 104 (27.0) | 37 (26.8) | 67 (27.1) |
|
|
Beyond secondary | 41 (10.6) | 18 (13.0) | 23 (9.3) |
| Successfully read a complete sentence in Runyankole at enrollment visit, n (%) | 260 (67.5) | 97 (70.3) | 163 (66.0) | |
| Estimate duration of journey to clinic (minutes), median (IQR) | 60 (30-120) | 42.5 (20-90) | 60 (30-120) | |
| Shared mobile phone, n (%) | 164 (42.6) | 49 (35.5) | 115 (46.6) | |
| Available mobile phone at enrollment visit, n (%) | 315 (81.8) | 111 (80.4) | 204 (82.6) | |
|
|
Successfully accessed test message | 247 (78.4) | 93 (83.8) | 154 (75.5) |
| Messages sent, n (%) |
|
|
|
|
|
|
1 | 249 (64.6) | 2 (1.4) | 247 (100) |
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2-6 | 36 (9.4) | 36 (26.1) | 0 |
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|
7 | 100 (26.0) | 100 (72.5) | 0 |
| Cellular network, n (%) |
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MTN | 199 (51.6) | 68 (49.3) | 131 (54.1) |
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Airtel | 111 (28.8) | 43 (31.6) | 68 (28.1) |
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Warid | 61 (15.8) | 23 (16.7) | 38 (15.7) |
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Other | 8 (2.1) | 3 (2.2) | 5 (2.1) |
| Message type, n (%) |
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|
|
|
|
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Normal | 247 (64.2) |
|
247 (100) |
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Direct | 46 (11.9) | 46 (33.3) | 0 |
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|
PIN | 48 (12.5) | 49 (35.5) | 0 |
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Coded | 43 (11.2) | 43 (31.2) | 0 |
| Study outcomes, n/N (%) |
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|
|
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Received at least 1 SMS text message | 250/346 (72.3) | 111/138 (80.4) | 139/208 (66.8) |
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Accurately identified transmitted SMS text format | 219/250 (87.6) | 87/111 (78.4) | 132/139 (95.0) |
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Returned to clinic based on SMS text instructions | 234/385 (60.8) | 78/138 (56.5) | 156/247 (62.8) |