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Table 2 Cardiovascular characteristics in heart failure patients with and without sleep apnoea.

From: Prevalence and characteristics of sleep apnoea in patients with stable heart failure: Results from a heart failure clinic

  Total (N = 103) With SA (N = 75) Without SA (N = 28) p value
Hypertension (%) 55.3 56.0 53.6 1.00
Ischaemic aetiology (%) 54.4 54.7 53.6 1.00
Atrial fibrillation (%) 34.3 36.5 28.6 0.60
NYHA II-III vs I (%) 61.8 67.6 46.4 0.08
Echocardiography     
Severe LVSD (%) 56.3 63.9 33.3 0.018
LVH (%) 12.1 16.2 0.0 0.03
LVEDD (mm) 59.0 (54.0-64.3) 60.0 (54.0-65.0) 56.0 (52.0-59.0) 0.01
LA (mm) 47.0 (41.0-51.0) 49.0 (44.0-52.0) 42.0 (38.0-48.0) < 0.001
PSAP (mmHg) 48.0 (40.0-52.8) 50 (40-53) 45 (38-52) 0.46
NT-proBNP (pg/mL) 1260.6 (552.3-2493.2) 1317.6 (705.9-2218.9) 1137.7 (232.9-2718.2) 0.51
  1. AHI- apnoea-hypopnoea index; NYHA- New York Heart Association; LVSD- left ventricle systolic dysfunction; LVH- left ventricle hypertrophy; LVEDD- left ventricle end-diastolic diameter; LA- left atria; PSAP- pulmonary systolic arterial pressure; RV- right ventricle.
  2. Continuous data are expressed as median and interquartile range.