Table 3:

Multivariable predictors of disability at 1-year after major cardiac surgery

VariableSubdistribution HR (95% CI)
Age1.03 (1.02–1.03)
Female1.38 (1.28–1.48)
Surgery type (Ref.: Isolated CABG)
 Single valve1.34 (1.21–1.48)
 Multiple valves1.43 (1.18–1.75)
 CABG + single valve1.38 (1.26–1.51)
 CABG + multiple valves1.78 (1.43–2.23)
 Emergent procedure1.40 (1.26–1.57)
Rural residence1.03 (0.94–1.12)
Income quintile (Ref.: 5 [highest])
 1 (lowest)1.33 (1.20–1.47)
 21.16 (1.05–1.29)
 31.11 (1.00–1.23)
 40.99 (0.89–1.10)
Hypertension1.16 (1.03–1.31)
Atrial fibrillation1.25 (1.14–1.37)
Heart failure1.66 (1.53–1.79)
MI within 30 days1.26 (1.17–1.36)
Remote MI1.13 (1.04–1.23)
Previous PCI0.94 (0.85–1.03)
LVEF, % (Ref.: ≥ 50)
 < 201.10 (0.89–1.36)
 20–341.07 (0.99–1.16)
 35–491.00 (0.89–1.11)
Cerebrovascular disease1.40 (1.29–1.53)
Peripheral arterial disease1.23 (1.14–1.34)
Smoker (Ref.: Never)
 Current1.19 (1.09–1.30)
 Former1.07 (0.99–1.15)
COPD or asthma1.32 (1.24–1.41)
Pulmonary circulatory disorder1.07 (0.91–1.24)
Severe obesity0.97 (0.91–1.03)
Diabetes1.38 (1.29–1.47)
Hypothyroidism1.10 (0.93–1.31)
Anemia1.39 (1.28–1.51)
Baseline creatinine (μmol/L; Ref.: < 120)
 120–1791.32 (1.21–1.45)
 ≥ 1801.81 (1.57–2.08)
Dialysis1.40 (1.19–1.64)
Liver disease1.33 (1.06–1.68)
Alcohol use disorder1.68 (1.39–2.03)
Dementia1.59 (1.13–2.24)
Depression1.66 (1.41–1.97)
Psychosis1.05 (0.62–1.76)
Primary cancer1.19 (1.06–1.34)
Metastatic cancer1.47 (1.08–1.99)
  • Note: CABG = coronary artery bypass grafting, CI = confidence interval, COPD = chronic obstructive pulmonary disease, HR = hazard ratio, LVEF = left ventricular ejection fraction, MI = myocardial infarction, PCI = percutaneous coronary intervention, Ref. = Reference.