Additional file 2 of Developing survey weights to ensure representativeness in a national, matched cohort study: results from the children and young people with Long Covid (CLoCk) study

Additional file 2: Interactive online tool for re-calibration of survey weights to the general population. This can be used to re-calibrate final target population survey weights to the general population using data on sex, age, and region from the 2021 UK Census. The tool allows ratios of the Census data to CLoCk data reweighted to the target population to be produced and provides examples of what to do with these ratios.