LGALS3 and chronic obstructive pulmonary disease: A logistic regression analysis revealed that increased galectin-3 levels and disease duration were independent predictors of COPD exacerbation (OR = 5.322, 95% CI: 1.178–24.052, p = 0.03; and OR = 1.297, 95% CI: 1.028–1.635, p = 0.028; respectively).