All Questions
2 questions
2
votes
2
answers
2k
views
Calculating statistical power for a Cox proportional hazards regression with a continuous predictor variable
I have 322 samples with survival data (71 had events) and wish to calculate the power to detect an association with a linear predictor (no covariates) at $\alpha$=0.05 and hazard ratio=1.561. Been ...
1
vote
0
answers
47
views
How can I determine whether my Cox regression analysis have enough power to conclude an outcome
I have 159 tumor patients, of which I know several parameters: age, sex, stage, ... and x.
X is a continuous covariate corresponding to the percentage of tumor cells currently dividing (biological ...
- 259