Table 1. Demographic characteristics of survey respondents by arm in Bangladesh and Tanzania mobile phone surveys.
| Bangladesh | Tanzania | |||||||
|---|---|---|---|---|---|---|---|---|
| Arm 1 | Arm 2 | Arm 1 | Arm 2 | |||||
| CATI* First Contact (CATI-FC) | IVR** Follow up (IVR-FU) | IVR First Contact (IVR-FC) | CATI Follow up (CATI-FU) | CATI First Contact (CATI-FC) | IVR Follow up (IVR-FU) | IVR First Contact (IVR-FC) | CATI Follow up (CATI-FU) | |
| Reported Age, n (= > 18 years) | 482 (100%) | 148 (100%) | 653 (100%) | 351 (100%) | 387 (100%) | 164 (100%) | 674 (100%) |
336 (100%) |
| Age—median (IQR) | 27 (22, 35) |
27 (20, 35) |
25 (20, 32) |
24 (20, 28) |
32 (25, 42) |
28 (22, 36) |
26 (22, 32) |
27 (22, 33) |
| Age-group | ||||||||
| 18–29 | 277 (57%) | 84 (57%) | 448 (69%) | 274 (78%) | 164 (42%) | 95 (58%) |
442 (66%) |
210 (63%) |
| 30–49 | 174 (36%) | 51 (34%) | 137 (21%) | 67 (19%) | 172 (44%) | 61 (37%) |
192 (28%) |
115 (34%) |
| 50–69 | 31 (6%) |
6 (4%) |
28 (4%) |
10 (3%) |
42 (11%) | 7 (4%) |
27 (4%) |
9 (3%) |
| 18–69 | 482 (100%) | 141 (95%) | 613 (94%) | 351 (100%) | 378 (98%) |
163 (99%) |
661 (98%) |
334 (99%) |
| 70+ | - | 7 (5%) | 40 (6%) | - | 9 (2%) | 1 (1%) | 13 (2%) | 2 (1%) |
| Sex | ||||||||
| Female | 170 (35%) | 42 (28%) | 81 (12%) | 35 (10%) | 143 (37%) | 45 (27%) |
178 (26%) |
89 (26%) |
| Male | 311 (65%) | 106 (72%) | 555 (85%) | 316 (90%) | 244 (63%) | 119 (73%) |
494 (73%) |
247 (74%) |
| Location | ||||||||
| Rural | 287 (60%) | 83 (56%) | 254 (39%) | 142 (40%) | 132 (34%) | 71 (43%) | 274 (41%) | 119 (35%) |
| Urban | 192 (40%) | 64 (43%) | 372 (57%) | 209 (60%) | 256 (66%) | 106 (65%) | 385 (57%) |
217 (65%) |
| Highest education level attempted | ||||||||
| No school | 64 (13%) | 7 (5%) |
59 (9%) |
34 (10%) | 22 (6%) |
9 (5%) |
50 (7%) |
7 (2%) |
| Primary | 182 (38%) | 33 (22%) | 133 (20%) | 71 (20%) | 217 (56%) | 80 (49%) |
306 (45%) |
155 (46%) |
| Secondary | 82 (17%) | 48 (32%) | 187 (29%) | 82 (23%) | 118 (30%) | 56 (34%) |
255 (38%) |
136 (40%) |
| University/tertiary plus | 148 (31%) | 59 (40%) | 239 (37%) | 162 (46%) | 28 (7%) |
14 (9%) |
7 (1%) |
38 (11%) |
NB:
*CATI–Computer Assisted Telephone Interviews
**IVR–Interactive Voice Response; FC–First Contact; FU–Follow Up
Key: CATI-FC–Arm 1, CATI delivered as first contact; IVR-FU–Arm 1, IVR as follow up; IVR-FC–Arm 2, IVR delivered as first contact; CATI-FU–Arm 2, CATI as follow up, IQR- Inter-quartile range