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Table 2 Cheyne-Stokes respiration related to physiologic variables

From: Cheyne-Stokes respiration in patients hospitalised for heart failure

  All CSR incl mixed apnoeas  
  CSR% CSR% CSR% Significance
  <10 10–50 >50  
  n = 58 n = 66 n = 60  
Age (years) 68.8 ± 11.7 72.1 ± 8.5 75,9 ± 8.6 p < 0.01
     R=0.24
Body Mass Index (kg/m2) 26.5 ± 5.5 26.1 ± 4.3 24.6 ± 4.1 NS
LVEF (%) 36.1 ± 12.1 38.8 ± 12.6 32.4 ± 11.5 P < 0.05
     R=-0.17
LVIDD (mm) 55.1 ± 10.0 57.1 ± 9.4 58.0 ± 8.2 P < 0.01
     R = 0.20
Ischaemic heart disease (percentage of patients) 51 59 72 p < 0.05
NYHA class 3–4 (percentage of patients) 60 39 55 NS
Atrial fibrillation (percentage of patients) 29 33 40 NS
Cerebrovascular disease (percentage of patients) 16 11 27 NS
Habitual snorers (percentage of patients) 12 12 12 NS
Males (percentage of patients) 57 77 70 NS
  1. Values are given as mean ± SD. Patients are divided according to the severity of Cheyne-Stokes respiration (quantified as percentage of total recording time); the limits are arbitrarily chosen. Significance testing is made with Spearman's rank correlation test for continuous variables and with Mann-Whitney U-test for categorical data.