Included | Excluded (no BMI available at age 48±6 months) | |||||||||
Total | Normal weight | Overweight | Obese | Underweight | Total | Normal weight | Overweight | Obese | Underweight | |
Participants | ||||||||||
N (%) | 466 997 | 430 681 (92.2) | 26 526 (5.7) | 9 250 (2.0) | 540 (0.1) | 336 924 | 278 030 (82.5) | 37 052 (11.0) | 19 546 (5.8) | 2 296 (0.7) |
BMIz* | ||||||||||
Mean (SD) | 0.46 (1.09) | 0.80 (0.88) | 2.40 (0.28) | 3.66 (0.51) | −3.51 (0.47) | 0.43 (1.17) | 0.11 (0.87) | 1.72 (0.50) | 2.91 (0.73) | −2.71 (0.64) |
Age in months | ||||||||||
Mean (SD) | 49.13 (2.00) | 49.13 (1.99) | 49.13 (2.01) | 49.15 (2.11) | 49.06 (2.50) | 54.30 (36.61) | 49,00 (34.58) | 76,69 (36,85) | 83.53 (31.80) | 85.72 (39,24) |
Age in months | ||||||||||
Female N (%) | 226 868 (48.58) | 210 274 (48.8) | 12 455 (47.0) | 3891 (42.1) | 248 (45.9) | 162 842 (48.3) | 136 061 (48.9) | 17 981 (39.8) | 7771 (48.5) | 1029 (44.8) |
Socioeconomic status | ||||||||||
Rural N (%) | 94 825 (20.3) | 88 571 (93.4) | 4 666 (4.9) | 1 488 (1.6) | 100 (0.1) | 59 418 (17.6) | 49 898 (84.0) | 6110 (10.3) | 3006 (5.1) | 404 (0.7) |
Urban quintile 1 (least deprived area) | 57 439 (12.3) | 53 877 (93.8) | 2 750 (4.8) | 761 (1.3) | 51 (0.1) | 50 398 (15.0) | 42 208 (83.7) | 5557 (11.0) | 2284 (4.5) | 349 (0.7) |
Urban quintile 2 | 68 720 (14.7) | 63 799 (92.8) | 3 715 (5.4) | 1 126 (1.6) | 80 (0.1) | 47 392 (14.1) | 38 886 (82.1) | 5471 (11.5) | 2734 (5.8) | 301 (0.6) |
Urban quintile 3 | 71 416 (15.3) | 65 660 (91.9) | 4 170 (5.8) | 1 507 (2.1) | 79 (0.1) | 47 313 (14.0) | 38 274 (80.9) | 5564 (11.8) | 3145 (6.6) | 330 (0.7) |
Urban quintile 4 | 72 801 (15.6) | 66 407 (91.2) | 4 569 (6.3) | 1 746 (2.4) | 79 (0.1) | 49 127 (14.6) | 39 808 (81.0) | 5755 (11.7) | 3239 (6.6) | 325 (0.7) |
Urban quintile 5 (most deprived area) | 77 129 (16.5) | 69 581 (90.2) | 5 259 (6.8) | 2 172 (2.8) | 117 (0.2) | 55 468 (16.5) | 44 928 (81.0) | 6134 (11.1) | 3962 (7.1) | 444 (0.8) |
Missing address | 24 667 (5.3) | 22 786 (92.4) | 1 397 (5.7) | 450 (1.8) | 34 (0.1) | 27 808 (8.3) | 24 028 (86.4) | 2461 (8.8) | 1176 (4.2) | 143 (0.5) |
Nationality | ||||||||||
Spanish N (%) | 415 829 (89.04) | 383 739 (89.10) | 23 568 (88.80) | 8083 (87.40) | 439 (81.30) | 272 974 (81.0) | 225 915 (81.3) | 29 833 (80.5) | 15 669 (80.2) | 1557 (67.8) |
Other N (%) | 51 168 (10.96) | 46 942 (10.90) | 2958 (11.20) | 1167 (12.6) | 101 (18.70) | 63 950 (19.0) | 52 115 (18.7) | 7219 (19.5) | 3877 (19.8) | 739 (32.2) |
*BMIz measured age 48±6 months for included participants and measurement closest to age 4 (but <3.5 and >4.5) years available for those included.
BMIz, body mass index for age z-score.