2.2. Data Collection
IMVASK participants had duplicate (or triplicate in discrepant cases) anthropometry measurements, while BREATHE participants had single measurements. Height was measured to the nearest 0.1 cm and weight to the nearest 0.1 kg, with the mean value used for analysis [GeneXpertDiet and body composition data were collected in the IMVASK cohort study. Food frequency, focused on protein and calcium-rich foods, was captured using a validated tool adapted for Zimbabwe [Participant data were captured on Google NexusTM tablets, (Google, Mountain View, CA, USA) using OpenDataKit Aggregate v1.4 software and uploaded to Microsoft Access databases (Microsoft, Redmond, WA, USA). Data were merged and analysed using Stata v15 or v16.1 software (StataCorp, Texas, USA).