Figure 4.

Intraclass correlation and accuracy coefficients for variables in anthropometry, diet by 24-h recall and heart magnetic resonance imaging. Results are the intraclass and accuracy coefficients with 95% CI for each variable in the three categories. Where the coefficients are very precisely estimated the 95% CIs are not clearly visible. Coefficient values and their 95% CIs for all 2858 variables (i.e. those in this figure and all of those in other categories not shown in this figure) are provided in Supplementary Tables S4–S6 (available as Supplementary data at IJE online). There are multiple variables for height and weight: 50 Standing height—measured as part of the baseline assessment; 12 144 Height—measured in the subgroup of participants attending the detailed imaging assessments as it is required to calibrate the DXA scans; 21 001 Weight—a derived variable amalgamating multiple methods of measurement at the assessment centre visit; 23 098 Weight—taken during impedance measurement; 12 143 Weight (pre-imaging)—measured in the subgroup of participants attending the detailed imaging assessments as it is required to calibrate the DXA scans. DXA, dual-energy X-ray absorptiometry