Table 2.

ALS criteria at inclusion according to site of onset.

	Bulbar	Upper limb	Lower limb
n	32	36	37
ALS-SSi	1.6 ± 1.4	0.7 ± 0.4	1.0 ± 0.9	ns
SVC loss (%)	1.4 ± 2.8	1.4 ± 2.5	2.4 ± 4.3	ns
Weight loss (kg)	0.5 ± 0.7	0.3 ± 1.1	−1.7 ± 11.2	ns
25OH vitamin D (ng/ml)	28.9 ± 11.3	25.8 ± 10.5	26.8 ± 19.9	ns

Value are means ± SD.

ALS, amyotrophic lateral sclerosis; ALS-SSi, Revised Amyotrophic Lateral Sclerosis Functional Rating Scale severity score at inclusion; SVC, slow vital capacity; ns, not statistically significant.