The
ORs of each question ranged from 0.75 to 4.80. Four questions which
had significant ORs were chosen for the items of WBI. These questions
were related to the signs and symptoms of “psychomotor agitation”
(OR¼4.05 [95% CI: 1.13–14.57]), “increase in goal-directed activity”
(OR¼3.70 [95% CI: 1.08–12.66]), “excessive involvement in pleasurable
activities that have a high potential for painful consequences”
(OR¼4.38 [95% CI: 1.21–15.78]), and “more talkative than usual or
pressure to keep talking” (OR¼4.80 [95% CI: 1.38–16.65]).