Table 1 Completion rates and sample characteristics of those included in the analysis at each time point
Baseline (n = 590) | Peak-campaign (n = 553) | Immediately post campaign (n = 497) | 10-months post campaign (n = 371) | 12-months post campaign (n = 380) | |
|---|---|---|---|---|---|
Number of participants contacted to take part | 837 | 837 | 837 | 539 | 539 |
Number of participants completing at least one dietary recall | 602 | 570 | 506 | 372 | 381 |
Completion rate (%) | 71.9 | 68.1 | 60.5 | 69.0 | 70.7 |
Participants removed from dataset due to invalid dietary recalls (n) | 12 | 17 | 9 | 1 | 1 |
Number of participants included in analysis | 590 | 553 | 497 | 371 | 380 |
Age in years (n [%]) | |||||
5 | 144 (24) | 132 (24) | 119 (24) | 84 (23) | 82 (22) |
6 | 91 (15) | 89 (16) | 75 (15) | 55 (15) | 57 (15) |
7 | 85 (14) | 79 (14) | 70 (14) | 57 (15) | 58 (15) |
8 | 86 (15) | 78 (14) | 66 (13) | 53 (14) | 53 (14) |
9 | 70 (12) | 68 (12) | 58 (12) | 44 (12) | 47 (12) |
10 | 68 (12) | 65 (12) | 63 (13) | 44 (12) | 48 (13) |
11 | 46 (8) | 42 (8) | 46 (9) | 34 (9) | 35 (9) |
Mean age (years) [Standard deviation] | 7.4 [2.0] | 7.4 [2.0] | 7.5 [2.0] | 7.5 [2.0] | 7.6 [2.0] |
Gender (n [%]) | |||||
Male | 279 (47) | 257 (46) | 234 (47) | 172 (46) | 175 (46) |
Female | 311 (53) | 296 (54) | 263 (53) | 199 (54) | 205 (54) |
Ethnicity (n (%)) | |||||
White | 529 (90) | 493 (89) | 440 (89) | 331 (89) | 336 (88) |
Asian/Asian British | 31 (5) | 32 (6) | 29 (6) | 21 (6) | 20 (5) |
Black/African/Caribbean/Black British | 12 (2) | 11 (2) | 12 (2) | 8 (2) | 9 (2) |
Mixed/multiple ethnic | 9 (2) | 9 (2) | 7 (2) | 6 (2) | 8 (2) |
Other Ethnic Group | 4 (1) | 4 (1) | 4 (1) | 1 (0) | 3 (1) |
Prefer not to answer | 5 (1) | 4 (1) | 5 (1) | 4 (1) | 4 (1) |
Socioeconomic group (n [%]) | |||||
ABC1 | 396 (67) | 370 (67) | 339 (68) | 252 (68) | 255 (67) |
C2DE | 194 (33) | 183 (33) | 158 (32) | 119 (32) | 125 (33) |