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Table 3 Ad-hoc estimators of probability of clinical stability for artificial data

From: How to handle mortality when investigating length of hospital stay and time to clinical stability

     Restricted Analysis Assign Worst Outcome
t i y i s i d i S ^ c s R ( t i ) 1 - S ^ c s R ( t i ) SE S ^ c s W ( t i ) 1 - S ^ c s W ( t i ) SE
2 10 2 0 1-2/8 = 0.75 0.25 0.153 1-2/10 = 0.8 0.2 0.126
3 8 0 1 0.75 0.25 0.153 0.8 0.2 0.126
4 7 1 0 0.75*(1-1/6) = 0.63 0.37 0.171 0.8*(1-1/8) = 0.7 0.3 0.145
5 6 1 1 0.63*(1-1/5) = 0.50 0.5 0.177 0.7*(1-1/7) = 0.6 0.4 0.155
7 4 1 0 0.5*(1-1/4) = 0.38 0.62 0.171 0.6*(1-1/6) = 0.5 0.5 0.158
> 7 3    0.38 0.62   0.5 0.5  
  1. t i = ith time point; y i = number at risk at time t i ; s i = number clinically stable at time t i ; d i = number who died at time t i ; SE = standard error