22-23 / 1676
Confidence intervals
•
More patients increase reliability, decrease
uncertainty
Toxicity
No toxicity Proportion
New
technique
5
15
25% (9-49%)
Old
technique
10
15
40% (21-61%)
Toxicity
No toxicity Proportion
New
technique
20
60
25% (16-36%)
Old
technique
40
60
40% (30-50%)
p=0.05
p=0.45