Hospitals Most patients who undergo surgery make routine

Chapter 3, Problem 43E

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QUESTION:

Problem 43E

Hospitals Most patients who undergo surgery make routine recoveries and are discharged as planned. Others suffer excessive bleeding, infection, or other postsurgical complications and have their discharges from the hospital delayed. Suppose your city has a large hospital and a small hospital, each performing major and minor surgeries. You collect data to see how many surgical patients have their discharges delayed by postsurgical complications, and you find the results shown in the following table.

a) Overall, for what percent of patients was discharge delayed?

b) Were the percentages different for major and minor surgery?

c) Overall, what were the discharge delay rates at each hospital?

d) What were the delay rates at each hospital for each kind of surgery?

e) The small hospital advertises that it has a lower rate of postsurgical complications. Do you agree?

f) Explain, in your own words, why this confusion occurs.

Questions & Answers

QUESTION:

Problem 43E

a) Overall, for what percent of patients was discharge delayed?

b) Were the percentages different for major and minor surgery?

c) Overall, what were the discharge delay rates at each hospital?

d) What were the delay rates at each hospital for each kind of surgery?

e) The small hospital advertises that it has a lower rate of postsurgical complications. Do you agree?

f) Explain, in your own words, why this confusion occurs.

ANSWER:

Step 1 of 6

(a)

Below is the table for discharge delayed.

	Large Hospital	Small hospital	Total
Major surgery	120 of 800	10 of 50	130 of 850
Monor surgery	10 of 200	20 of 250	30 of 450
Total	130 of 1000	30 of 300	160 0f 1300

had delayed discharge.

Step 2 of 6

b) Yes. Major surgery patients were delayed 130 of 850 times, or about of the time. Minor Surgery patients were delayed 30 of 450 times, or about of the time.