Neurological Severity Score: Categorical Analysis of Days at Score by Treatment.1, 2

1Testing Terms: Frequency is the number of occurrences of that score for the entire treatment group over the duration of the study. Share of Responses is the proportion of total responses by the treatment group that occurred at each Score level. Prob>ChiSq lists the probability of obtaining, by chance alone, a Chi-square value greater than the one computed if the score frequencies are the same for both Treatment groups at group size minus one degrees of freedom.2Neurological scores were assigned as described in detail in Materials and Methods. Neurological disease severity increases from 0�C4. Score0 is asymptomatic, Score4 is moribund.