The formula to calculate the Inpatient Days Per 1000 (IDP1000) is:
IDP1000=(TIDTP)×1000
Where:
Let's say the total inpatient days (TID) is 5000 and the total population (TP) is 100000. Using the formula:
IDP1000=(5000100000)×1000=50
So, the Inpatient Days Per 1000 (IDP1000) is 50.