Table 4

Cycling asynchrony during overnight NIV setup

% of breathsCOPDNMD-CWDORRFp Value
% Premature expiratory cycling1 (0–4)1 (0–4)1 (0–2)0.9
% Delayed expiratory cycling2 (0–7)2 (0–5)0 (0–3)0.5
% Auto-cycling1 (0–4)0 (0–0)0 (0–0)0.2
% Total cycling asynchrony7 (4–10)4 (3–6)3 (1–7)0.2
  • A Kruskal-Wallis test was used to compare patient-ventilator asynchrony between disease groups, p value <0.05 was taken to represent statistical significance.

  • NMD-CWD, neuromuscular disease with or without chest wall disease; ORRF, obesity related respiratory failure.