Additional file 1 of Risk of hypothyroidism in meat-eaters, fish-eaters, and vegetarians: a population-based prospective study

Supplementary Material 1: Figures S1. Flowchart. Figures S2. Dietary Categorisation. Figures S3. Illustration of collider and confounding bias. Figures S4. Hazard ratios (HR) and 95% Confidence intervals (95% CI) between diet groups and the risk of hypothyroidism with all hypothyroidism cases and cases only due to potential low iodine intakes. Table S1. List of Covariates. Table S2. Demographic characteristics of dietary groups. Table S3. Intake of different food types according to 24-h recall among diet groups within a subsample of 207,011 participants. Table S4. Average micronutrient intake across dietary groups with data from first FFQ (n = 207,011). Table S5. Iodine intake on whether individuals met or did not meet the recommended intake threshold of over 150 μg/day among a subsample of 207,011. Table S6. Demographic characteristics of prevalent hypothyroidism cases.