The CALLY index, a novel composite biomarker, is inversely associated with preserved ratio impaired spirometry (PRISm): A nationally representative cross-sectional study.
Preserved ratio impaired spirometry (PRISm) is an intermediate pulmonary phenotype with heightened cardiometabolic risk. Effective tools for its identification are lacking. However, its relationship with systemic inflammatory-nutritional balance is underexplored. The CALLY index integrates C-reactive protein, albumin, and lymphocyte count. This composite biomarker reflects inflammatory-nutritional homeostasis. This study aimed to investigate the association between the ln(CALLY) index and PRISm...