Table 4:

Death within 1 year after cardiac surgery, stratified by CFS score

Presurgery CFS scoreNo. (%) of patients in cohortAdjusted HR (95% CI), model 1*Adjusted HR (95% CI), model 2†
1–4478 (90.4)1.00 (Ref.)1.00 (Ref.)
5–951 (9.6)4.59 (1.58–13.28)4.34 (1.54–12.19)
1–3304 (57.5)1.00 (Ref.)1.00 (Ref.)
4174 (32.9)2.25 (0.70–7.21)1.86 (0.56–6.21)
5–951 (9.6)7.11 (1.97–25.71)6.06 (1.71–21.51)
1–3304 (57.5)1.00 (Ref.)1.00 (Ref.)
4174 (32.9)2.24 (0.70–7.18)1.81 (0.54–6.09)
538 (7.1)5.94 (1.46–24.13)4.80 (1.20–19.16)
6–913 (2.5)11.85 (2.11–66.69)12.86 (2.30–72.05)

  • Note: CFS = Clinical Frailty Scale, CI = confidence interval, HR = hazard ratio, Ref. = reference category.

  • ↵* Cox proportional hazards model adjusted for age and sex.

  • ↵† Cox proportional hazards model adjusted for age, sex and EuroSCORE II log.