Table 2

Characteristics of patients matched by propensity score and standardised differences in propensity score variables before and after matched

Matchedn=169n=169P value
Age85.0 (79.0; 88.0)84.0 (79.0; 88.0)0.507
Killip III-IV admission42 (24.9%)39 (23.1%)0.799
GFR <60 mL/min86 (50.9%)77 (45.6%)0.384
Previous angina142 (84.0%)148 (87.6%)0.436
Previous CHF153 (90.5%)155 (91.7%)0.848
Previous stroke148 (87.6%)147 (87.0%)1.000
Standardised differences*Before matchingAfter matching
Age36.855.89
Killip III-IV admission38.294.15
GFR <60 mL/min24.5510.64
Previous angina17.7110.15
Previous CHF28.844.15
Previous stroke16.381.77
  • *Differences between groups based on the % of the SD of each individual variable.

  • CHF, chronic heart failure; GFR, glomerular filtration rate.