Table 1

Comparison of characteristics of the NIPPV and control groups at assessment 1 (mean (SD))

NIPPV group (n=9) Control group (n=10) p Value
Age (y)61.11  (7.83)61.90  (6.97)0.720
ALSFRS symptom severity26.00 (2.00)27.67 (5.43)0.428
Interval between assessments (days)45.11 (9.93)39.80 (8.73)0.211
Arterialised ear lobe blood CO2 partial pressure (mm Hg)49.95 (4.88)35.03 (2.10)0.0001-165
Arterialised ear lobe blood bicarbonate (mmol/l)31.97 (1.45)23.83 (1.80)0.0001-165
ESS score9.14 (5.27)4.22 (2.11)0.0121-150
Forced vital capacity (l)2.01 (0.51)3.67 (0.86)0.0011-160
HAD Anxiety score2.80 (3.03)4.22 (3.49)0.681
HAD Depression score1.33 (2.31)1.89 (1.05)0.518
  • 1-150 p<0.05;

  • 1-160 p<0.01;

  • 1-165 p<0.001.