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Table 2 Logistic regression of heart valve operation and death in patients with mitral valve disease

From: Heart valve operations associated with reduced risk of death from mitral valve disease but other operations associated with increased risk of death: a national population-based case–control study

  Non-matched Matched
aOR 95% CI aOR 95% CI
Heart valve operation (reference: non-heart valve operation)
 Yes 0.625 (0.435–0.897)* 0.568 (0.341–0.946)*
Other operation (reference: without)
 Other CVD system operation 1.759 (1.492–2.075)*** 2.419 (1.484–3.941)***
 Nervous system operation 1.248 (0.937–1.662) 0.941 (0.395–2.244)
 Digestives system operation 1.715 (1.484–1.982)*** 1.222 (0.808–1.849)
 Breath system operation 3.547 (2.959–4.251)*** 2.753 (1.694–4.473)***
 Urinary system operation 1.155 (0.911–1.466) 1.915 (1.028–3.568)*
Hemodialysis 5.210 (3.983–6.815)*** 7.205 (3.728–13.92)***
 Comorbidity (reference: without)
 Hypertension 1.141 (0.920–1.415) 0.628 (0.366–1.078)
 Hyperlipidemia 0.634 (0.549–0.733)*** 0.754 (0.502–1.132)
 Diabetes 1.234 (1.069–1.424)** 1.547 (1.031–2.321)*
 COPD 0.989 (0.855–1.143) 1.085 (0.720–1.634)
 Emphysema 1.575 (1.105–2.245)* 3.046 (1.250–7.420)*
 Heart failure 1.629 (1.402–1.894)*** 1.377 (0.878–2.159)
 Cardiac dysrhythmias 1.000 (0.870–1.150) 1.106 (0.737–1.660)
 Anxiety 0.833 (0.720–0.964)* 0.796 (0.523–1.210)
 CKD 1.560 (1.311–1.856)*** 2.211 (1.387–3.525)***
 Sleep disturbances 0.872 (0.753–1.010) 0.919 (0.601–1.404)
 Anemia 1.592 (1.369–1.851)*** 1.303 (0.825–2.058)
  1. Abbreviation: aOR Adjusted odds ratio, CI Confidence interval, CVD Cardiovascular disease, COPD Chronic obstructive pulmonary disease, CKD Chronic kidney disease
  2. Adiusted with gender, age, low income, other operation, comorbidity.*P < 0.05, **P < 0.01, ***P < 0.001