Table 1 Before and after matching sample characteristics
Sub-sample 1 | Sub-sample 2 | |||||
|---|---|---|---|---|---|---|
Before matching | After-matching | Before matching | After-matching | |||
Mean case (sd) | Mean control (sd) | Standardized difference | Mean case (sd) | Mean control (sd) | Standardized difference | |
Covariates | ||||||
Age | 65.90 (12.02) | 70.40 (10.09) | −0.01 | 66.30 (10.58) | 70.12 (9.83) | −0.01 |
Gender (Female) | 0.15 (0.35) | 0.16 (90.38) | 0 | 0.14 (0.35) | 0.15 (0.35) | 0 |
Charlston Index = 0 | 0.53 (0.49) | 0.54 (0.50) | 0 | |||
Charlston Index = 1 | 0.24 (0.43) | 0.30 (0.46) | 0 | |||
Charlston Index = 2 | 0.14 (0.35) | 0.21 (0.41) | 0 | |||
Outcomes | ||||||
LOS | 9.15 (11.9) | 9.05 (9.72) | 0.152 | 8.86 (11.24) | 9.07 (9.40) | 0.154 |
Re-hospitalization rate | 2.11 (3.51) | 1.54 (2.52) | 0.202 | 2.14(3.60) | 1.57(2.42) | 0.227 |
Mortality | 0.29 (0.45) | 0.47 (0.50) | −0.109 | 0.30 (0.46) | 0.46(0.50) | −0.067 |
Expenditure for index hospitalisation (€) | 15020.92 (5780.23) | 4259.72 (5780.95) | 1.44 | 14815.56 (7343.40) | 4307.13(6443.55) | 1.347 |
Total hospital expenditure during follow up (€) | 24944.31 (19558.93) | 10881.34 (13230.06) | 0.156 | 24829.44 (19863.8) | 11269.01 (14044.27) | 0.618 |
Patients | 1050 | 11976 | 905 | 5962 | ||