Table 1. Relative risks of hospital acquired infection associated with heart tra
ID: 3231598 • Letter: T
Question
Table 1. Relative risks of hospital acquired infection associated with heart transplant and oral surgery at Sacred Heart Medical Center (Hospital A) and Immaculate Conception Medical Center (Hospital B)
Procedure
Relative Risk of Hospital Acquired Infection (Hospital A/Hospital B)
Confidence Interval
Heart transplant
0.62
(0.40, 1.06)
Oral surgery
3.95
(2.76, 5.09)
Which of the following statements is true?
The risk of hospital acquired infection associated with heart transplant is approximately six times as great in Hospital A as in Hospital B, but this difference is not statistically significant.
The risk of hospital acquired infection from oral surgery is approximately four times as great in Hospital A as in Hospital B, and the difference is statistically significant.
The risk of hospital acquired infection from oral surgery differs between hospitals, but is NOT statistically significant.
The confidence intervals suggest that the risk of hospital acquired infection from oral surgery is approximately 5.0 times as important as that arising from heart transplant.
Both hospitals have similar risks
Procedure
Relative Risk of Hospital Acquired Infection (Hospital A/Hospital B)
Confidence Interval
Heart transplant
0.62
(0.40, 1.06)
Oral surgery
3.95
(2.76, 5.09)
Explanation / Answer
Answer:
Table 1. Relative risks of hospital acquired infection associated with heart transplant and oral surgery at Sacred Heart Medical Center (Hospital A) and Immaculate Conception Medical Center (Hospital B)
Procedure
Relative Risk of Hospital Acquired Infection (Hospital A/Hospital B)
Confidence Interval
Heart transplant
0.62
(0.40, 1.06)
Oral surgery
3.95
(2.76, 5.09)
Which of the following statements is true?
A.
The risk of hospital acquired infection associated with heart transplant is approximately six times as great in Hospital A as in Hospital B, but this difference is not statistically significant.
Answer:
B.
The risk of hospital acquired infection from oral surgery is approximately four times as great in Hospital A as in Hospital B, and the difference is statistically significant.
C.
The risk of hospital acquired infection from oral surgery differs between hospitals, but is NOT statistically significant.
D.
The confidence intervals suggest that the risk of hospital acquired infection from oral surgery is approximately 5.0 times as important as that arising from heart transplant.
E.
Both hospitals have similar risks
Procedure
Relative Risk of Hospital Acquired Infection (Hospital A/Hospital B)
Confidence Interval
Heart transplant
0.62
(0.40, 1.06)
Oral surgery
3.95
(2.76, 5.09)
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