Table 10

Using the complication rates for each diagnostic group we predicted the complication rate expected in each location and for each physician group

A Observed and expected complication rates for each location
ICUEDWards
Expected number of complications40921
Expected rate of complication %50.611.740.4
Observed rate of complication %54.416.050.0
χ2 gives a p = 01.3
B Observed and expected complication rates for each physician group
Group AGroup NAGroup M
χ2 gives a p = 0.23.
Expected number of complications182728
Expected rate of complication %35.332.937.3
Observed rate of complication %33.334.149