ローランドモリス質問紙を構成する24の質問の類型化とその臨床的有用性

Categorization of the 24 Items of the Roland-Morris Disability Questionnaire and Its Clinical Usefulness

　目的：ローランドモリス質問紙(RDQ)を構成する24の質問の類型化が臨床的に有用かどうかを明らかにすること．

　対象：術前の腰椎変性疾患患者130人．

　方法：クラスター分析を経て決定された質問領域間の関連性を検証したうえで，腰部脊柱管狭窄症(LSS)群と腰椎椎間板ヘルニア(LDH)群の間で質問領域を比較した．

　結果：「精神的・身体的活動領域」，「移動動作領域」，「起居動作領域」の間の関連性は中等度で，相対的に独立していた．また，LDH群はLSS群に比し「精神的・身体的活動領域」で有意に劣っていた．

　結語：RDQの質問を類型化することによってLSSとLDHとの能力低下の違いを捉えることができた．

　Aim：To determine whether categorization of the 24 items of the Roland-Morris disability questionnaire (RDQ) is clinically useful.

　Subjects：130 pre-surgical patients with lumbar degenerative diseases.

　Methods：The 24 questions of the RDQ were categorized by cluster analysis, and then associations among question categories were investigated, and comparisons were made a lumbar spinal stenosis (LSS) group and a lumbar disc herniation (LDH) group.

　Results：Cluster analysis identified 3 question categories：a category related to mental and physical activities, a category related to ambulatory functions, and a category related to functional movements on/around a bed (e.g., postural changes).　Since the associations between the 3 question categories were moderate;these categories were considered relatively independent.　A score of the mental and physical activities category in the LDH group was significantly higher to that of the mental and physical activities category in the LSS group.

　Conclusion：Categorization of the 24 items of the RDQ can be used to clarify differences in disability between LSS patients and LDH patients.