Table 3

Hazard ratio for subsamples (Weibull hazard model)
Subsample 1 Subsample 2
Hazard 95% CI Hazard 95% CI
ICD 0.807 0.710 0.916 0.848 0.747 0.985
Age 1.053 1.049 1.057 1.057 1.049 1.051
Sex 0.705 0.651 0.764 0.681 0.651 0.601
Charlson comorbidity index 1.416 1.369 1.465 1.341 1.279 1.406
Weibull p 0.81 0.791 0.830 0.807 0.780 0.835
Likelihood Ratio (LR) (p-value) 3436.31 (< 0.0000) 1604.94 (< 0.0000)

All models included 48 dummies for primary diagnosis (coefficients not shown here); ICD: whether patient received an ICD (1) or not (0).

Ghislandi et al.

Ghislandi et al. BMC Health Services Research 2013 13:100   doi:10.1186/1472-6963-13-100

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