Table 2. Demographic and clinical characteristics of captured and non-captured ALS cases.

	Captured cases (n = 106)	Non-captured cases(n = 10)	p Value
Age at evaluation (years)	51.3±10.4	56.0±11.7	0.173
Educational level (years)	10.5±3.7	11.1±4.1	0.696
Gender (male, %)	63.2	50.0	0.462
Onset type (bulbar, %)	20.8	50.0	0.036
Disease duration (months)	14.2±11.6	14.9±12.2	0.726
Swallowing subscale of ALSSS	9.2±1.2	7.4±2.0	0.002
ALSFRS-R	40.8±4.6	31.4±8.1	<0.001
Progression rate	0.7±0.6	1.5±1.0	0.011

ALS, amyotrophic lateral sclerosis; ALSFRS-R, revised ALS functional rating scale; ALSSS, ALS severity scale; the disease progression rate was calculated according to the formula of (48-ALSFRS-R score)/disease duration(month).

Data were means±SD.