Fig. 2

Forest plot of the β coefficients for the associations between serum Klotho level and FeNO. Serum Klotho was included in models as a continuous variable and as quartiles. Adjusted models included age, gender, BMI, WBC, NLR, eos, lung function, albumin, ALT, AST, BUN, creatinine, LDH, phosphorus, calcium, cholesterol, cardiovascular disease (including hypertension, heart failure, coronary heart disease and myocardial infarction), serum vitamin D level, diabetes, smoking status, and alcohol use. 95%CI, Confidence Interval