Fig. 1.

(a) Plots of 7-day versus 24-hour recall symptom and symptom factor scores. Comparisons in these figures include overall symptom burden and the factor groupings of neurologic and cognitive symptoms as representative examples of the equivalency between the 7-day and 24-hour recall periods. (b) Plots of 7-day versus 24-hour recall interference and interference subscale scores. Comparisons in these figures include overall interference and the subscales of interference items related to activity and mood.