Table 1 Descriptive statistics of the Millennium Cohort Study (MCS) sample.
Total sample, MCS 1a N = 18,540 | BMI sampleb N = 7282 | FMI samplec N = 6912 | ||||
|---|---|---|---|---|---|---|
Boys, N = 9527 N/mean; %/SD | Girls, N = 9013 N/mean; %/SD | Boys, N = 3711 N/mean; %/SD | Girls, N = 3571 N/mean; %/SD | Boys, N = 3514 N/mean; %/SD | Girls, N = 3398 N/mean; %/SD | |
Adverse childhood experiences (ACEs) | ||||||
Parental separation; No | 5854; 61.45 | 5674; 62.95 | 3530; 95.12 | 3417; 95.69 | 3344; 95.16 | 3256; 95.82 |
Yes | 1730; 18.16 | 1624; 18.02 | 181; 4.88 | 154; 4.31 | 170; 4.84 | 142; 4.18 |
Missing | 1943; 20.39 | 1715; 19.03 | – | – | – | – |
Parental depression; No | 6083; 63.85 | 5703; 63.28 | 2428; 65.43 | 2306; 64.58 | 2295; 65.31 | 2189; 64.42 |
Yes | 3444; 36.15 | 3309; 36.71 | 1283; 34.57 | 1265; 35.42 | 1219; 34.69 | 1209; 35.58 |
Missing | 0; 0.00 | 1; 0.01 | – | – | – | – |
Parental drug use; No | 6432; 67.51 | 6210; 68.90 | 3391; 91.38 | 3269; 91.54 | 3218; 91.58 | 3105; 91.38 |
Yes | 606; 6.36 | 562; 6.24 | 320; 8.62 | 301; 8.46 | 296; 8.42 | 293; 8.62 |
Missing | 2489; 26.13 | 2241; 24.86 | – | – | – | – |
Parental alcohol misuse; No | 8095; 84.97 | 7635; 84.71 | 2875; 77.47 | 2778; 77.79 | 2716; 77.29 | 2638; 77.63 |
Yes | 1432; 15.03 | 1377; 15.28 | 836; 22.53 | 793; 22.21 | 798; 22.71 | 760; 22.37 |
Missing | 0; 0.00 | 1; 0.01 | – | – | – | – |
Interparental use of force; No | 6830; 71.69 | 6459; 71.66 | 3138; 84.56 | 3013; 84.37 | 2977; 84.72 | 2859; 84.14 |
Yes | 1094; 11.48 | 1053; 11.68 | 573; 15.44 | 558; 15.63 | 537; 15.28 | 539; 15.86 |
Missing | 1 603; 16.83 | 1 501; 16.65 | – | – | – | – |
Parental discord; No | 5401; 56.69 | 5195; 57.64 | 3407; 91.81 | 3330; 93.25 | 3223; 91.72 | 3162; 93.05 |
Yes | 475; 4.99 | 433; 4.80 | 304; 8.19 | 241; 6.75 | 291; 8.28 | 236; 6.95 |
Missing | 3651; 38.32 | 3385; 37.56 | – | – | – | – |
Harsh parenting; No | 4310; 45.24 | 4396; 48.77 | 2584; 69.63 | 2657; 74.40 | 2436; 69.32 | 2524; 74.28 |
Yes | 1746; 18.33 | 1 386; 15.38 | 1 127; 30.37 | 914; 25.60 | 1 078; 30.68 | 874; 25.72 |
Missing | 3471; 36.43 | 3 231; 35.85 | – | – | – | – |
Physical punishment; No | 5493; 57.66 | 5559; 61.68 | 3049; 82.16 | 3150; 88.21 | 2884; 82.07 | 2987; 87.90 |
Yes | 1090; 11.44 | 752; 8.34 | 662; 17.84 | 421; 11.79 | 630; 17.93 | 411; 12.10 |
Missing | 2944; 30.90 | 2702; 29.98 | – | – | – | – |
ACE score | ||||||
0 | 1226; 12.87 | 1263; 14.01 | 915; 24.66 | 974; 27.28 | 859; 24.45 | 918; 27.02 |
1 | 1668; 17.51 | 1677; 18.61 | 1242; 33.47 | 1276; 35.73 | 1180; 33.58 | 1204; 35.43 |
2 | 1180; 12.39 | 1077; 11.95 | 904; 24.36 | 814; 22.79 | 857; 24.39 | 786; 23.13 |
3+ | 899; 9.44 | 711; 7.89 | 650; 17.52 | 507; 14.20 | 618; 17.59 | 490; 14.42 |
Missing | 4 554; 47.80 | 4 285; 47.54 | – | – | – | – |
Poverty; No | 5571; 58.48 | 5313; 58.95 | 3087; 83.19 | 2996; 83.90 | 2930; 83.38 | 2859; 84.14 |
Yes | 3529; 37.04 | 3318; 36.81 | 624; 16.81 | 575; 16.10 | 584; 16.62 | 939; 15.86 |
Missing | 427; 4.48 | 382; 4.24 | – | – | – | |
BMI (age) | ||||||
5 years | 16.40; 1.92 | 16.32; 1.88 | 16.42; 1.84 | 16.27; 1.76 | – | – |
7 years | 16.61; 2.33 | 16.70; 2.39 | 16.57; 2.16 | 16.61; 2.23 | – | – |
11 years | 19.06; 3.59 | 19.46; 3.75 | 18.92; 3.38 | 19.23; 3.50 | – | – |
14 years | 20.97; 4.05 | 21.96; 4.17 | 20.79; 3.81 | 21.69; 3.90 | – | – |
17 years | 23.01; 4.62 | 23.57; 4.83 | 22.80; 4.31 | 23.37; 4.60 | – | – |
FMI (age) | ||||||
7 years | 3.45; 1.48 | 3.83; 1.59 | – | – | 3.38; 1.36 | 3.74; 1.46 |
11 years | 4.09; 2.49 | 5.05; 2.52 | – | – | 3.94; 2.25 | 4.87; 2.35 |
14 years | 3.83; 2.73 | 6.22; 2.88 | – | – | 3.62; 2.46 | 5.99; 2.71 |
17 years | 4.09; 3.04 | 6.97; 3.52 | – | – | 3.85; 2.75 | 6.81; 3.34 |
Ethnicity | ||||||
White | 7876; 82.67 | 7401; 82.11 | 3457; 93.16 | 3290; 92.13 | 3274; 93.17 | 3131; 92.14 |
Mixed/Other | 406; 4.26 | 413; 4.58 | 83; 2.24 | 108; 3.02 | 78; 2.22 | 102; 3.00 |
Indian | 241; 2.53 | 224; 2.49 | 62; 1.67 | 59; 1.65 | 59; 1.68 | 56; 1.65 |
Pakistani and Bangladeshi | 632; 6.63 | 633; 7.02 | 65; 1.75 | 80; 2.24 | 63; 1.79 | 78; 2.30 |
Black or Black British | 348; 3.65 | 318; 3.53 | 44; 1.19 | 34; 0.95 | 40; 1.14 | 31; 0.91 |
Missing | 24; 0.25 | 24; 0.27 | – | – | – | – |
Birth weight | 3.40; 0.60 | 3.29; 0.57 | 3.50; 0.56 | 3.36; 0.56 | 3.50; 0.56 | 3.36; 0.56 |
Maternal prenatal BMI | 23.66; 4.48 | 23.63; 4.44 | 23.90; 4.30 | 23.86; 4.23 | 23.91; 4.29 | 23.89; 4.25 |
Parental social class | ||||||
Semi routine and routine | 1542; 16.19 | 1384; 15.36 | 588; 15.84 | 525; 14.70 | 540; 15.37 | 494; 14.54 |
Lower supervisory and technical | 764; 8.02 | 713; 7.91 | 374; 10.08 | 358; 10.03 | 350; 9.96 | 339; 9.98 |
Small employers | 638; 6.70 | 595; 6.60 | 296; 7.98 | 291; 8.15 | 279; 7.94 | 275; 8.09 |
Intermediate | 822; 8.63 | 838; 9.30 | 407; 10.97 | 450; 12.60 | 386; 10.98 | 428; 12.60 |
Managerial/professional | 3283; 34.46 | 3104; 34.44 | 2046; 55.13 | 1947; 54.52 | 1959; 55.75 | 1826; 54.80 |
Missing | 2478; 26.01 | 2379; 26.40 | – | – | – | |
Parental education | ||||||
None | 1318; 13.83 | 1260; 13.98 | 118; 3.18 | 113; 3.16 | 104; 2.96 | 106; 3.12 |
GCSEs | 4051; 42.52 | 3688; 40.92 | 1385; 37.32 | 1321; 36.99 | 1316; 37.45 | 1249; 36.76 |
A Levels | 905; 9.50 | 884; 9.81 | 407; 10.97 | 419; 11.73 | 385; 10.96 | 399; 11.74 |
Higher education | 3042; 31.93 | 2957; 32.81 | 1779; 47.94 | 1696; 47.49 | 1691; 48.12 | 1624; 47.79 |
Oversea qualifications | 190; 1.99 | 205; 2.27 | 22; 0.59 | 22; 0.62 | 18; 0.51 | 20; 0.59 |
Missing | 21; 0.22 | 19; 0.21 | – | – | – | |