Fig. 4.

Subgroup analysis of the associations between NHHR and all-cause and cardiovascular mortality. The reference NHHRs for all-cause mortality were NHHRs < 2.72, while for cardiovascular mortality, the reference was NHHRs < 2.83. The model was adjusted for sex, age, race, education, marital status, poverty income ratio, BMI, smoking status, drinking status, physical activity, hypertension, hyperlipidemia, antihyperglycemic treatment, lipid-lowering treatment, and antihypertensive treatment. BMI, body mass index; CI, confidence interval; CVD, cardiovascular disease; HR, hazard ratio