Table 1 Baseline characteristics
No SMS notification for questionnaires + voucher at 24-month visit (n = 350) | SMS notification for questionnaires + voucher at 24-month visit (n = 345) | No SMS notification for questionnaires + voucher before 24-month visit (n = 352) | SMS notification for questionnaires + voucher before 24-month visit (n = 347) | |
|---|---|---|---|---|
Host trial allocation | ||||
Control | 173 (49%) | 175 (51%) | 177 (50%) | 176 (51%) |
Intervention | 177 (51%) | 170 (49%) | 175 (50%) | 171 (49%) |
Number of first-degree relatives with atopic diseasea | ||||
1 | 128 (37%) | 125 (36%) | 131 (37%) | 123 (35%) |
2 | 139 (40%) | 167 (48%) | 141 (40%) | 149 (43%) |
3 or more | 83 (24%) | 53 (15%) | 80 (23%) | 75 (22%) |
Age of mother: mean [SD] | 32.0 [5.0] | 31.5 [5.3] | 31.3 [5.3] | 31.7 [5.4] |
Number of other children in household | ||||
0 | 133 (38%) | 148 (43%) | 146 (41%) | 141 (41%) |
1 | 150 (43%) | 135 (39%) | 141 (40%) | 131 (38%) |
2 | 49 (14%) | 37 (11%) | 53 (15%) | 52 (15%) |
3 or more | 18 (5%) | 25 (7%) | 12 (3%) | 23 (7%) |
Decile of English Index of Multiple Deprivation 2015 | ||||
Median [25th, 75th centiles] | 6 [4, 9] | 6 [3, 9] | 6 [3, 9] | 5 [3, 8] |
n | 343 | 338 | 347 | 340 |