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Time to death based on baseline thyroid functional status. Survival curves are adjusted for age, sex, race, diabetes, and hospitalization for noncardiovascular indication in the preceding year. (A) shows results of the primary analysis in which the start of at-risk time began 30 days after thyrotropin (TSH) measurement. (B) shows estimates from an analogous model that did not consider the 30-day lag period. 95% CI, 95% confidence interval; HR, hazard ratio.
