Question

Which diagnosis had the lowest net mortality rate? Total patient Total patient deaths (including newborns) Deaths <48 hr Diagnoses discharges (including by diagnosis after admission deaths) by diagnosis Aortic aneurysm 47 846 Pneumonia 1294 Atrial fibrillation 651 0 Aortic aneurysm O Atrial fibrillation O Pneumonia

Answer 1

Ans: Pneumonia.

The formula for the net mortality rate =

{[Total number of patient deaths (after diagnosis) - number of deaths that occurred less than 48 hours after admission] / [total number of inpatient discharges - number of deaths that occurred less than 48 hours after admission]} X 100

Therefore,

Net mortality rate (atrial fibrillation) = {[32 -12]/[651-12]} X 100

Net mortality rate (atrial fibrillation) = 1.8779

Net mortality rate (pneumonia) = {[59 -41]/[1294-41]} X 100

Net mortality rate (pneumonia) = 1.4365

Net mortality rate (aortic aneurism) = {[47 -19]/[846-19]} X 100

Net mortality rate (aortic aneurism) = 3.3857