Table 1.

Risk of poor outcome, defined as inability to walk unaided at 4 weeks, 3 months, and 6 months after entry to the hospital, according to potential predictors in the derivation set of 394 patients with GBS based on univariable regression analysis

Abbreviations: CI = confidence interval; GBS = Guillain-Barré syndrome; MRC = Medical Research Council; NS = nonsignificant; OR = odds ratio; URTI = upper respiratory tract infection.

^aTime between onset of weakness and admission in days, odds ratio per extra day.

^bSymptoms of an infection in the 4 weeks preceding the onset of weakness.

^cUsing pretreatment serum samples obtained at entry.