NPPB and dementia: Patients who died also were older, had higher incidence of peripheral vascular disease, dementia, and chronic pulmonary disease, and had elevated levels of HR, RR, WBC, INR, PT, creatinine, BUN, ALT, AST, ALP, CKMB, BNP, K+, Na+, Ca2+, Cl−, anion gap, glucose, and lactate.