Table 1

Long survivors compared with the remaining database population and short survivor group

VariableCategoryLS (n=30)SS (n=30)RP (n=709)p LS v RPp LS v SS
*p<0.05 after the Bonferroni correction applied to values shown. LS, long survivors; SS, short survivors; RP, remaining patients; BO, bulbar onset; UL, upper limb; LL, lower limb.
Survival at censusAlive210177
Dead930532
SexMale1816442
Female12142670.7960.602
El Escorial categoryDefinite715185
Probable78270
Possible124174
Suspected4377
Not known0030.2790.067
Mixed v pure signsMixed2127614
LMN only4378
UMN only50170.001*0.056
Site of onsetBO710187
UL1010265
LL1310255
Trunk001
Not known0010.7820.631
Age of onset (mean in years)436257<0.001*<0.001*