Table 2—

Days spent in hospital and admission rates before and after starting long-term oxygen therapy (LTOT) in two groups of hypoxaemic chronic obstructive pulmonary disease patients depending on compliance with hours spent with oxygen

VariableSubjects nBefore LTOTAfter LTOTRelative change# %p‐value
 Ever admitted %92.763.831.2<0.001
 Ever admitted %946333.0<0.001
 Ever admitted %896527.00.001
  • Data are presented as mean±sd unless otherwise stated

  • COT: continuous oxygen therapy (15–24 h·day−1)

  • NCOT: noncontinuous oxygen therapy (<15 h·day−1)

  • #: (preoxygen period-oxygen period)/preoxygen period