Compared with those in the lowest tertile, the difference in life expectancy for men and women in the highest FT4 tertile was −3.2 (95% CI −5.0 to −1.4) and −3.5 (−5.6 to −1.5) years, respectively, of which, −3.1 (−4.9 to −1.4) and −2.5 (−4.4 to −0.7) years without CVD.