KL and hypertensive disorder: To evaluate the robustness of the connection between serum Klotho and hyperlipidemia, subgroup analyses were conducted to stratify the relationship based on age (< 60/≥ 60 years), gender (man/woman), BMI (< 30/≥ 30 kg/m2), race (White/non-White), current drinker (yes/no), current smoker (yes/no), hypertension (yes/no), diabetes (yes/no), and CVD (yes/no).