Table 3.
Mother-related characteristics of cohorts contributing data to the EU Child Cohort Network
| Cohort | Na | Maternal age at birth (y), mean (SD) | Education level, n (%) | Ethnicity, n (%) | Multiparous, n (%) | Smoked in pregnancy, n (%) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| High | Medium | Low | White | Black, Asian or minority ethnic | Mixed | |||||
| ALSPAC | 10,742 | 29.2 (4.6) | 1444 (14.2) | 6954 (68.6) | 1741 (17.2) | 9874 (98.3) | 169 (1.7) | – | 5629 (54.8) | 2468 (26.0) |
| BiB | 12,397 | 27.6 (5.6) | 2534 (26.8) | 1502 (15.9) | 5420 (57.3) | 4290 (41.8) | 5783 (56.3) | 200 (1.9) | 7259 (60.8) | 1659 (16.2) |
| CHOP | 1280 | 30.2 (5.0) | 336 (26.3) | 640 (50.2) | 300 (23.5) | 1232 (96.4) | 46 (3.6) | – | 652 (51.0) | 416 (32.6) |
| DNBC | 72,157 | 30.1 (4.2) | 33,700 (52.3) | 14,067 (21.8) | 16,655 (25.9) | NA | NA | NA | 37,964 (52.6) | 17,580 (24.7) |
| EDEN | 1676 | 29.7 (4.8) | 938 (56.2) | 636 (38.1) | 94 (5.6) | 1437 (99.1) | 7 (0.5) | 6 (0.4) | 911 (54.5) | 413 (24.7) |
| ELFE | 10,825 | 30.8 (4.7) | 7240 (66.9) | 3063 (28.3) | 521 (4.8) | 8706 (83.9) | 963 (9.3) | 705 (6.8) | 5673 (53.0) | 1779 (16.6) |
| GECKO | 2682 | 30.7 (4.4) | 900 (35.9) | 724 (28.9) | 885 (35.3) | 2400 (95.5) | 70 (2.8) | 43 (1.7) | 1591 (59.9) | 411 (15.4) |
| Gen R | 8534 | 30.7 (5.2) | 3448 (45.3) | 3380 (44.4) | 778 (10.2) | 4606 (57.1) | 2665 (33.0) | 799 (9.9) | 3691 (44.8) | 1888 (25.9) |
| HBCS | 13,343 | 28.4 (5.4) | NA | NA | NA | NA | NA | NA | 6861 (51.4) | NA |
| INMA | 1900 | 31.8 (4.2) | 661 (35.2) | 768 (40.9) | 449 (23.9) | 1802 (95.7) | 80 (4.3) | – | 810 (44.5) | 588 (31.4) |
| MoBa | 76,569 | 30.4 (4.4) | 48,804 (67.5) | 22,166 (30.6) | 1354 (1.9) | NA | NA | NA | 39,262 (51.7) | 6194 (8.1) |
| NFBC1966 | 7810 | 28.1 (6.7) | 254 (3.3) | 1033 (13.5) | 6387 (83.2) | NA | NA | NA | 5387 (69.1) | 1569 (20.7) |
| NFBC1986 | 8372 | 27.8 (5.5) | 1735 (23.7) | 2744 (37.4) | 2856 (38.9) | NA | NA | NA | 5499 (65.9) | 1975 (23.7) |
| NINFEA | 6018 | 33.2 (4.2) | 3799 (63.6) | 1923 (32.2) | 253 (4.2) | NA | NA | NA | 1548 (27.0) | 453 (7.6) |
| Raine | 2491 | 27.9 (5.8) | 465 (20.1) | 633 (27.3) | 1221 (52.7) | 2175 (89.2) | 264 (10.8) | – | 1275 (52.3) | 666 (27.3) |
| Rhea | 967 | 29.7 (4.9) | 304 (32.1) | 481 (50.7) | 163 (17.2) | 926 (99.8) | 2 (0.2) | – | 524 (54.9) | 290 (33.1) |
| SWS | 2921 | 30.2 (3.8) | 837 (28.7) | 1730 (59.2) | 345 (11.8) | 2799 (95.8) | 105 (3.6) | 16 (0.5) | 1409 (48.3) | 428 (15.4) |
Values are mean (standard deviation) or n (valid percent)
aNumber of children from the cohort contributing data to the EU Child Cohort Network and with all three of the following variables harmonised: (1) birth weight, (2) sex, (3) at least one height or weight measurement taken at ≥ 1 year. Mothers who contributed more than one child to a cohort are counted more than once in the table