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Table 1 Summary description of food record participants (n = 1858 participants)

From: Characterisation, procedures and heritability of acute dietary intake in the Twins UK cohort: an observational study

Characteristic n = 1858 mean ±SD median range min max
Age (yrs)a 58.65 14.07 61.46 71.36 18.59 89.96
Sex (M/F) 88% F, 12% M
BMI (kg/m2)a 25.94 4.98 25.04 39.26 15.93 55.18
Weight (kg)a 69.43 14.14 67.25 101.85 39.95 141.8
Ethnicity 97.1% Caucasian, 2.4% BME, 0.5% Missing   
Zygosity (MZ/DZ) 242 DZ pairs, 361 MZ pairs
Protein (g)a 79.93 30.82 75.3 193.41 9.79 203.2
Fat (g)a 70.61 28.04 67.38 151.95 2.77 154.72
Carbohydrate (g)a 220.38 77.39 212.12 444.62 37.3 481.92
Fibre AOAC (g)a 19.24 9.08 18.09 77.2 0.99 78.19
Energy (kcal)a 1847.42 550.18 1806.15 3827.7 522.9 4350.6
  1. aSummary description of participants, including at multiple timepoints for those with duplicate records (n = 1974 EFR). BMI, weight and age at time of food record completion