Table. 1—

Patient characteristics prior to cardiac resynchronisation therapy

TotalNon-SASACSR
Subjects n28121612
Age yrs62.8±10.760.1±8.164.8±12.165.1±13.7
BMI kg·m−228.6±3.228.4±2.628.9±3.728.6±3.8
Males/females*22/67/515/112/0
ICM/non-ICM11/174/87/95/7
LVEF %19.8±3.220.4±3.019.3±3.419.8±4.1
QRS ms177±22170±23181±20187±22.7
NYHA II/III/IV#3/19/61/11/02/8/61/6/5
LVEDD cm6.91±0.776.90±0.896.92±0.717.23±0.75
6-min walk m354±64357±54351±80342±84
  • Data are presented as n and mean±sd. SA: sleep apnoea (includes patients with obstructive sleep apnoea and Cheyne-Stokes respiration (CSR)); BMI: body mass index; ICM: ischaemic cardiomyopathy; LVEF: left ventricular ejection fraction; NYHA: New York Heart Association; LVEDD: left ventricular end-diastolic dimension. *: p<0.05 between SA and non-SA, p<0.05 between CSR and non-SA; #: p<0.05 between CSR and non-SA.