Vitamin D Deficiency Predicts Poor Clinical Outcomes in Heart Failure Patients Undergoing Cardiac Resynchronization Therapy

Figure 3

Severity of heart failure at baseline and after six months of CRT. We compared the baseline and six-month severity of heart failure using NYHA classification in patient groups of baseline plasma vitamin D levels below and above 24.13 ng/mL using the Mann-Whitney test. CRT: cardiac resynchronization therapy; NYHA class: classification of heart failure according to the New York Heart Association.