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Biostatistics #4 - Interpreting a Risk ratio

3K views 11 replies 11 participants last post by  kay k 
#1 · (Edited)
The relative risks found in the following Table were formed as the ratio of unadjusted inpatient mortality rates associated with two medical procedures in hospital A relative to hospital B.

View attachment table.bmp

Which one of the following is the most valid interpretation of these data?

A) The risk of mortality associated with coronary bypass surgery is approximately twice as great in hospital A as in hospital B, and this difference is statistically significant
B) The risk of death from Cesarean section differs little between hospitals, but the small difference is statistically significant
C) The RR of death from Cesarean section is twice as great in hospital B as in hospital A, and this difference is statistically significant
D) The P value suggest that the risk of death from Cesarean section is nearlt twice as important as that arising from coronary artery disease
 
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