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. 2012 Oct;19(5):e319–e328. doi: 10.3747/co.19.1038

TABLE V.

Post hoc power analysis

Powera (%) Detectable hr for dfsb
60 0.7
70 0.67
80 0.64
90 0.6
95 0.56
a

Calculated using the size of the 1995–1997 population (n = 156) plus the 2000–2002 population (n = 161) at the 5% significance level.

b

Comparing the 2000–2002 with the 1995–1997 population.

hr = hazard ratio; dfs = disease-free survival.