Table 2.
Child-related characteristics of cohorts contributing data to the EU Child Cohort Network
| Cohort | Na | Female, n (%) | GA (weeks), mean (SD) | Birth weight (g), mean (SD) | SGAb, n (%) | LGAc, n (%) | Ever breastfed, n (%) |
|---|---|---|---|---|---|---|---|
| ALSPAC | 10,742 | 5313 (49.5) | 40.0 (1.9) | 3408 (555) | 644 (6.0) | 1015 (9.5) | 7213 (75.8) |
| BiB | 12,397 | 5980 (48.2) | 39.5 (1.8) | 3212 (557) | 1385 (11.2) | 562 (4.5) | 3228 (78.7) |
| CHOP | 1280 | 659 (51.5) | 40.4 (1.2) | 3297 (351) | 28 (2.2) | 34 (2.7) | 901 (70.4) |
| DNBC | 72,157 | 35,464 (49.1) | 39.9 (1.8) | 3565 (582) | 2281 (3.2) | 10,046 (14.0) | 55,214 (98.3) |
| EDEN | 1676 | 802 (47.9) | 39.7 (1.7) | 3283 (506) | 118 (7.0) | 60 (3.6) | 1230 (73.4) |
| ELFE | 10,825 | 5277 (48.7) | 39.6 (1.5) | 3322 (488) | 644 (6.0) | 535 (5.0) | 7858 (74.8) |
| GECKO | 2682 | 1332 (49.7) | 39.8 (1.6) | 3542 (548) | 87 (3.3) | 357 (13.4) | 1938 (79.4) |
| Gen R | 8534 | 4229 (49.6) | 40.3 (1.9) | 3400 (576) | 615 (7.4) | 541 (6.5) | 6013 (91.8) |
| HBCS | 13,343 | 6369 (47.7) | 39.8 (1.8) | 3407 (479) | NA | NA | 11,110 (99.6) |
| INMA | 1900 | 923 (48.6) | 39.9 (1.6) | 3263 (467) | 139 (7.3) | 70 (3.7) | 1648 (88.6) |
| MoBa | 76,569 | 37,390 (48.8) | 39.8 (1.9) | 3576 (578) | 2725 (3.6) | 7377 (9.6) | 71,768 (93.7) |
| NFBC1966 | 7810 | 3628 (46.5) | 40.5 (1.9) | 3491 (530) | 378 (5.3) | 703 (9.9) | 4550 (86.0) |
| NFBC1986 | 8372 | 4112 (49.1) | 39.8 (1.7) | 3560 (546) | 259 (3.1) | 1186 (14.2) | NA |
| NINFEA | 6018 | 2951 (49.0) | 39.7 (1.7) | 3238 (493) | 471 (7.9) | 200 (3.3) | 5502 (92.1) |
| Raine | 2491 | 1218 (48.9) | 39.1 (2.3) | 3299 (602) | 142 (7.0) | 146 (7.2) | 2082 (89.7) |
| Rhea | 967 | 459 (47.5) | 38.7 (1.5) | 3183 (455) | 56 (5.9) | 51 (5.3) | 805 (86.5) |
| SWS | 2921 | 1411 (48.3) | 39.7 (1.8) | 3441 (547) | 126 (4.3) | 259 (8.9) | 2376 (82.5) |
Values are mean (standard deviation) or n (valid percent)
GA gestational age at birth, SGA small for gestational age, LGA large for gestational age, NA data not available
aNumber of children from the cohort contributing data to the EU Child Cohort Network and with all three of the following variables harmonised: i) birth weight, ii) sex, iii) at least one height or weight measurement taken at ≥ 1 year
bBirth weight ≤ 5th percentile for gestational age (in completed weeks) using the WHO fetal growth charts [52] as the growth standard
cBirth weight ≥ 95th percentile for gestational age (in completed weeks) using the WHO fetal growth charts [52] as the growth standard