Skip to main content

Table 5 Sample size calculation and assumptions for each procedure

From: Application of the comprehensive complication index and Clavien–Dindo complication classification in cardiac surgery: a retrospective study

Procedure

Assumption

Sample size

Mortality rate during hospitalization

3/738 = 0.41%

30% reduction

72,684

Incidence of complication

568/738 = 76.96%

30% reduction

126

Incidence of most severe complication

77/738 = 10.43%

30% reduction

2584

Incidence of MACCEs

80/738 = 10.84%

30% reduction

2476

Mean CCI ± SD

22.5 ± 19.3

Δ 10; SD 19.3

120