Table 1 Characteristics of mothers and children in all participating cohorts
N | Cohorts (N = 3152) | |||
|---|---|---|---|---|
HELIX | G21 | ALSPAC | GenR | |
1138 | 732 | 892 | 390 | |
Share of UPF in the diet in %a (mean (SD)) | 24 (9) | 34 (13) | 61 (12) | 36 (11) |
Child sex: male (N (%)) | 627 (55.1) | 392 (53.6) | 442 (49.6) | 200 (51.3) |
Child age (mean (SD)) (years) | 7.81 (1.55) | 9.72 (0.23) | 7.45 (1.68) | 9.76 (0.26) |
White European Ancestry (N (%)) | 1014 (89.1) | 711 (97.1) | 890 (99.8) | 390 (100) |
Child sedentary behaviour (min/day)b | 240 (131) | 492 (67) | Â | 124 (71) |
Child sedentary behaviour (N (%)) | Â | Â | Â | Â |
 Screen time 1 h/day |  |  | 246 (27.6) |  |
 1-2 h/day |  |  | 581 (65.1) |  |
 3 h/day or more |  |  | 65 (7.3) |  |
Child BMI (mean (SD)) (kg/m2) | 16.8 (2.6) | 18.6 (3.2) | 16.2 (2.0) | 17.1 (2.0) |
Total vegetables intake (grams/week)c | Â | Â | 197 (24) | 98 (59) |
Total vegetables intake (N (%)) | Â | Â | Â | Â |
 < 6 (servings/week) | 573 (50.4) | 188 (25.7) |  |  |
 6.0–8.5 (servings/week) | 216 (19.0) | 346 (47.3) |  |  |
 > 8.5 (servings/week) | 349 (30.7) | 119 (16.3) |  |  |
 NA |  | 79 (10.8) |  |  |
Total fruit intake (grams/week) d | Â | Â | 551 (513) | 126Â (68) |
Total fruit intake(N (%)) | Â | Â | Â | Â |
 < 7 (servings/week) | 372 (32.7) | 387 (52.9) |  |  |
 7–14.1 (servings/week) | 384 (33.7) | 207 (28.3) |  |  |
 > 14.1 (servings/week) | 382 (33.6) | 59 (8.1) |  |  |
NA | Â | 79 (10.8) | Â | Â |
Maternal education (N (%)) e | Â | Â | Â | Â |
 Low | 170 (14.9) | 304 (41.5) | 251 (28.1) | 29 (7.4) |
 Middle | 383 (33.7) | 209 (28.6) | 431 (48.3) | 197 (50.5) |
 High | 585 (51.4) | 219 (29.9) | 210 (23.5) | 164 (42.1) |
Maternal pre-pregnancy BMI (mean (SD)) (kg/m2) | 25.0 (4.9) | 24.5 (4.5) | 22.9 (3.6) | 24.6 (4.1) |
Maternal age f (mean (SD)) (years) | 30.7 (4.9) | 29.6 (5.2) | 29.7 (4.3) | 42.4 (3.9) |
Maternal active smoking during pregnancy (N (%)) | 168 (14.8) | 153 (20.9) | 161 (18.0) | 47 (12.1) |