Estimated number of chronic diseases over the 16-year follow-up: (A) by HFAS and (B) according to the interaction of HFAS and healthy lifestyle in the whole population. ^a Model adjusted for age, sex, race, education, TDI, BMI, smoking status, drinking status, physical activity, and social contact. ^b Model adjusted for age, sex, race, education, TDI, and social connection.