Table 3.

Comparing ALSFRS-R score and time from onset until Bi-PAP intiation.

Bi-PAP user sub-group	Median ALSFRS-R Score, (IQR)	Median time months, (IQR)
Bulbar onset	31 (13)	5.40 (9.79)
Limb onset	25 (12)	10.77 (15.73)
<4 h/day	26 (12)	5.47 (7.89)
4–8 h/day	27 (14)	7.57 (10.25)
>8 h/day	27 (14)	8.68 (12.93)
FVC %predict < 50	22 (13)	9.90 (17.27)
FVC %predict ≥ 50	29 (10)	7.23 (12.34)
FVC %predict ≥ 60	31 (11)	7 (12.29)
FVC %predict ≥ 70	32 (11)	5.57 (10.99)
FVC %predict ≥ 80	34 (13)	5.57 (10.33)