Using the patient’s date of birth, calculate his/her age at time of admission to the hospital.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

You can answer Q1-2 on the original data sheet, and then Q3-9 all on another sheet. 

 

1. Using the patient’s date of birth, calculate his/her age at time of admission to the hospital.

2. Use nested IF statements (or VLOOKUP if you want to try it out) to group the ages into several categories (see Winston chapter 3 on Lookup Functions for VLOOKUP):

a. Infant (less than 1 year old)

b. Child 1-4

c. Child 5-19

d. Adult 20-44

e. Adult 45-64

f. Adult 65 and over

3. Use COUNTIF, SUMIF, and AVERAGEIF to determine the following by age category:

a. Number of patients in each age category and for the population as a whole

b. Sum of total days across all patients in each age category and for the population as a whole

c. Average length of stay (ALOS) for each age category and for the population as a whole

4. Use COUNTIF, SUMIF, and AVERAGEIF to determine the following by hospital:

a. Number of patients in each hospital and for the population as a whole

b. Sum of total days across all patients in each hospital and for the population as a whole

c. Average length of stay (ALOS) for each hospital and for the population as a whole

5. Use COUNTIF, SUMIF, and AVERAGEIF to determine the following by service type:

a. Number of patients by each service type and for the population as a whole

b. Sum of total days across all patients by each service type and for the population as a whole

c. Average length of stay (ALOS) for each service type and for the population as a whole

 

 

 

 

Please note: we are looking for you to use Excel functions for questions 6-8. Do not use the filter. Hint: in order to solve part b for Q6-8, you need to do some additional data preparatory work using the MAXIF function. This function is an array function, which means that when you enter the formula, you must press CTRL+SHIFT+ENTER, not just ENTER.

6. Which age group has the patient with the longest ALOS? The patient with the longest single length of stay?

7. Which hospital has the patient with the longest ALOS? The patient with the longest single length of stay?

8. Which service type has the patient with the longest ALOS? The patient with the longest single length of stay?

 

**To answer Q9, you should not have to delete any rows/data points from the original spreadsheet.

9. What would overall ALOS by hospital be without any extreme outliers? (For the purposes of this problem set, we will define “extreme outliers” as any lengths of stay greater than 60 days.  There are alternate ways to determine “extreme,” which we can discuss in class.)

 

 

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