Table 1.

NIV data set: descriptive statistics

Total cases	n=128
Site of onset	Bulbar 32 (25%)	Limb 96 (75%)
Gender	Female 37 (29%)	Male 91 (71%)
Age at symptom onset (years)	Median 57.0	IQR 50–64 Range 22–76
Diagnostic delay (months)	Median 10.3	IQR 6.0–15.0 Range 1.0–55.1
Riluzole use	Yes 32 (25%)	No 96 (75%)
Survival from NIV initiation (months)	Median 5.7	IQR 2.1–11.3 Range 0.1–38.9

NIV, non-invasive ventilation.