Table 3

 Clinical features at the acute stage in the study population

Characteristics at onsetPatients (n = 28)
*Cumulative rates from onset to maximum intensity.
†Loss of pain and temperature sensation.
‡Impairment in the sense of position.
§Inability to walk alone or with 1 aid, and bladder dysfunction needing catheterisation.
Onset of symptoms*
    ⩽30 minutes11
    ⩽12 hours18
    ⩽72 hours28
Back pain at onset23
Motor deficit28
    Unilateral deficit of limb2
    Possible with 2 aids2
    Possible with 1 aid7
    Possible without aid1
Indwelling catheter21
Sensory impairment25
Severe impairment§19