Fig. 1.

Adjusted odds ratios for low cardiorespiratory fitness stratified by CRP (upper panel) or RDW categories (lower panel). The adjusted estimates were derived from multivariate logistic regression analysis after adjusting for age, gender, race, hypertension, diabetes, body mass index, hyperlipidemia, glomerular filtration rate, serum hemoglobin and serum ferritin concentration. The lowest category namely CRP < 0.5 mg/dL and RDW < 13% served as reference categories for respective comparisons.