Abstract P227 Table 1

Hospital activity and blood gases during 12 months before and after home NIV

n = 2812 months before NIV12 months after NIVp valuep value
Mean (SD)Mean (SD)paired t testMann Whitney
No. of admissions3.5 (2.5)1.5 (2.9)0.002<0.001
Mean LOS10.7 (8.4)3.5 (3.9)0.002<0.001
Total LOS30.4 (21.1)9.5 (18)<0.001<0.001
Acute NIV Days13.3 (15.4)1.4 (3.3)0.001<0.001
Admission pH7.31 (0.08)7.36 (0.04)0.160.02
Admission PCO2 9.42 (2.33)8.05 (1.99)0.440.48