Abstract P2 Table 1

Factors affecting success of NIV

Number of patients813
Age starting NIV (years)65.5±6.365.7±8.3
BMI (kg/m2)26.1±7.422.6±5.3
Bulbar MND110*
Urgent NIV26
VC (l)2.1±0.71.3±0.7*
PEG in situ27
VC <1.5 l or <50% predicted210*
Pco2 (kPa)7.7±2.87.3±2.3
Base excess (mmol/l)3.4±4.16.3±4.3
Bicarbonate (mmol/l)27.0±2.830.3±1.3*
Most common reasons for stopping NIVDeath 5Not tolerated 6, death 4
  • BMI, body mass index; MND, motor neurone disease; NIV, non-invasive ventilation; Pco2, carbon dioxide tension; VC, vital capacity.

  • *p<0.05.