Appendix 1: Technical information

Adjusted height for men: =  101.761 – 0.053×(height_{self-reported}) + 0.003×(height²_{self-reported}) – 0.461×(age 18 to 19) - 0.120×(age 20 to 24) - 0.056×(age 25 to 29) + 0.246×(age 30 to 34) + 0.031×(age 35 to 39) – 0.369×(age 40 to 44) – 0.392×(age 45 to 49) – 0.470×(age 50 to 54) – 0.827×(age 55 to 59) – 1.104×(age 60 to 64) – 1.568×(age 65 to 69) – 2.153×(age 70 to 74) - 2.517×(age 75 to 79) - 2.927×(age 80 to 84) – 4.103×(age 85 and over) – 0.316×(North East)  - 0.199×(North West) - 0.197×(Yorkshire & The Humber) - 0.023×(East Midlands) - 0.296×(West Midlands) - 0.189×(East of England) - 0.122×(London) - 0.070×(South West) – 0.141×(below degree) – 0.276×(O level/GCSE) – 0.244×(none) – 0.604×(missing education data) + 0.299×(Black) - 0.605×(Asian) - 0.386×(Mixed) - 0.153×(Other ethnic group) + 0.263×(missing ethnic data) -0.123×(fair general health) – 0.459×(bad/very bad general health)

Adjusted height for women: =  21.809 + 0.865×(height_{self-reported}) + 0.221×(age 18 to 19) + 0.515×(age 20 to 24) + 0.563×(age 25 to 29) + 0.310×(age 30 to 34) + 0.108×(age 35 to 39) + 0.129×(age 40 to 44) + 0.114×(age 45 to 49) + 0.147×(age 50 to 54) – 0.268×(age 55 to 59) – 0.676×(age 60 to 64) – 1.057×(age 65 to 69) – 1.607×(age 70 to 74) - 2.349×(age 75 to 79) - 3.527×(age 80 to 84) – 4.370×(age 85y+) - 0.093×(North East)  - 0.261×(North West) - 0.158×(Yorkshire & The Humber) - 0.039×(East Midlands) - 0.131×(West Midlands) + 0.048×(East of England) - 0.046×(London) - 0.015×(South West) – 0.097×(below degree) – 0.186×(O level/GCSE) – 0.519×(none) - 0.368×(missing education data) - 0.050×(IMD Q2) - 0.100×(IMD Q3) - 0.252×(IMD Q4) - 0.154×(IMD Q5) - 0.529×(Black) - 1.785×(Asian) - 0.500×(Mixed) - 1.696×(Other) + 0.066×(missing ethnic data)

Adjusted weight for men: =  10.204 + 0.676×(weight_{self-reported}) + 0.004×(weight²_{self-reported}) – 1.216e-05×(weight³_{self-reported}) + 0.497×(age 18 to 19) – 0.433×(age 20 to 24) – 0.321×(age 25 to 29) - 0.530×(age 30 to 34) - 0.217×(age 35 to 39) + 0.055×(age 40 to 44) + 0.222×(age 45 to 49) + 0.303×(age 50 to 54) + 0.434×(age 55 to 59) + 0.557×(age 60 to 64) + 0.340×(age 65 to 69) + 0.285×(age 70 to 74) + 0.234×(age 75 to 79) - 0.025×(age 80 to 84) + 0.323×(age 85y+) - 0.198×(below degree) – 0.305×(O level/GCSE) - 0.365×(none) + 0.668×(missing education data) + 0.629×(ex-regular smoker) + 0.655×(never regular smoker) + 0.967×(missing smoking data)

Adjusted weight for women:  = 2.112 + 0.948×(weight_{self-reported}) + 0.001×(weight²_{self-reported}) -7.451e-06×(weight³_{self-reported})  - 0.821×(age 18 to 19) - 0.792×(age 20 to 24) - 1.082×(age 25 to 29) - 0.939×(age 30 to 34) - 0.867×(age 35 to 39) - 0.825×(age 40 to 44) – 0.564×(age 45 to 49) - 0.551×(age 50 to 54) – 0.685×(age 55 to 59) – 0.651×(age 60 to 64) – 0.592×(age 65 to 69) – 0.953×(age 70 to 74) - 0.562×(age 75 to 79) - 0.763×(age 80 to 84) – 1.378×(age 85y+) + 0.255×(ex-regular smoker) + 0.178×(never regular smoker) + 0.359×(missing smoking data) + 0.871×(Black) - 0.011×(Asian) - 0.244×(Mixed) - 0.371×(Other) + 0.716×(missing ethnic data)

Adjusted height for men: =   292.227 + (-3.3763324 × height) + (0.0217649 × height²) + (-0.0000364 × height³) + (0.0788123 × age) + (-0.0012560 × age²)

Adjusted height for women:  = 160.3468  + (-1.7360242 × height) + (0.0159004 × height²) + (-0.0000321 × height³) + (0.1119681 × age) + (-0.0016046 × age²)

Adjusted weight for men: =  9.9126  + (0.6653765 × weight) + (0.0036857 × weight²) + (-0.0000125 × weight³) + (0.0319996 × age) + (-0.0001959 × age²)

Adjusted weight for women: = 1.281195  + (0.9487828 × weight) + (0.001376 × weight²) + (-0.00000755 × weight³) + (0.0083899 × age) + (-0.0000739 × age²)