NPPB and atrial fibrillation: A significant correlation was found between serum amylaseand serum lipase levels (correlation coefficient, 0.646; p< 0.001).Multivariable stepwise linear regression analysis of patients with ADHF showedthat lower BUN, lower albumin level, and higher uric acid levels were significantindependent correlates of lower amylase levels, whereas the presence of AF,higher creatinine levels, and higher BNP levels were significant independentcorrelates of lower lipase levels (Table 3).