実車評価の時期に関する調査─脳卒中発症からの期間と実車評価結果との関連から

On-road assessment timing: The relationship between the period since the onset of stroke and on-road assessment outcomes

要旨：本研究の目的は実車評価時期と実車評価結果の関連性を調査し，時期による違いを考察することである．実車評価を実施した脳卒中後の106名を発症から実車評価までの期間で2ヵ月未満（短期群），2〜4ヵ月（中期群），4ヵ月以上（長期群）の3群に分類し，神経心理学的検査，実車評価結果を比較した．実車評価結果は指導員の総合判定と作業療法士が採点した運転行動評価表（Road Test）の得点とした．すべての群間比較の中で有意差を認めたのは短期群と長期群におけるRoad Test得点のみであり，長期群が有意に低下していた（p＝0.0159）．このことより発症から実車評価までに期間を要したものは，実車評価時に問題となる運転行動を呈する可能性が考えられた．

　The purpose of this research is to investigate the relationship of the period since the onset of stroke and the on-road assessment outcomes. The 106 subjects that received on-road assessment were divided into three groups: those with less than two months after onset (the short-term group), those from two to four months (the middle-term group) and those with more than four months (long-term group). Neuropsychological tests and on-road assessment outcomes of the three groups were investigated. The Comprehensive Judgment by the driving instructor and the Driving Behavior Assessment (Road Test) scored by the occupational therapist were used to assess on-road outcomes. The Road Test scores of the long-term group compared to the short-term group were only significant when compared to all groups, and the score of long-term group was significantly lower than the score of short-term group (p=0.0159). Therefore, patients who took longer to recover after the onset of stroke may exhibit poorer driving behavior during the on-road assessment.