NPPB and atrial fibrillation: At the same time, after adjusting for age, gender, BMI, hypertension, coronary heart disease, cerebral infarction, diabetes, and left atrial diameter, the NT Pro‐BNP is still statistically associated with AF with a relative risk of 11.30 (95% CI: 11.30 7.65–16.69, p < .001).