Table 4

 Logistic regression analysis for the determinants of weakness

DeterminantUnivariatep ValueMultivariatep Value
Data are expressed as odds ratio (95% confidence interval).
NS, not significant.
Axon loss5.7 (2.9 to 11.1)<0.0014.4 (2.0 to 9.7)<0.001
Conduction block7.1 (2.6 to 19.4)<0.0012.1 (0.7 to 6.6)NS
Demyelinative slowing6.6 (3.1 to 14.0)<0.0012.0 (0.8 to 4.8)NS
Years untreated1.1 (1.1 to 1.2)<0.0011.1 (1.0 to 1.2)<0.01
Years treated1.0 (0.9 to 1.2)NS1.1 (0.9 to 1.3)NS
Nerve length2.1 (1.4 to 3.1)<0.0011.9 (1.1 to 3.2)<0.05