| All patients (n = 198) | Not frail (CFS 1–4) (n = 158) | Frail (CFS 5–9) (n = 40) | Unadjusted RR per unit increase in CFS | p-value | Adjusted RR per unit increase in CFSa | p-value |
---|---|---|---|---|---|---|---|
Index hospital admission outcome | |||||||
 Cardiac catheterization | 141 (71) | 128 (81) | 13 (33) | 0.46 (0.35–0.58) | < 0.001 | 0.53 (0.40–0.70) | < 0.001 |
 Dead | 10 (5) | 4 (3) | 6 (15) | 1.98 (1.60–2.44) | < 0.001 | 1.90 (1.47–2.44) | < 0.001 |
At 12 months | |||||||
 Attended cardiac rehabilitationb | 62 (33) | 62 (40) | 0 (0) | 0.49 (0.36–0.64) | < 0.001 | 0.59 (0.42–0.80) | 0.001 |
 Readmittedb | 46 (24) | 34 (22) | 12 (35) | 1.39 (1.17–1.67) | < 0.001 | 1.10 (0.86–1.40) | 0.44 |
 Dead | 33 (17) | 14 (9) | 19 (48) | 1.98 (1.60–2.44) | < 0.001 | 1.90 (1.47–2.44) | < 0.001 |