The role of physical status versus mental status in predicting the quality of life of patients with lumbar disk herniation

Purpose: To explore the role of physical status versus mental status in predicting the quality of life (QOL) of patients with lumbar disk herniation (LDH). Method: In this correlative study 51 patients with LDH were recruited in their conservative stage of treatment. After profiling their physical status, all participants reported about pain level (according to VAS), pain perception using the Pain Catastrophizing Scale (PCS), and disability level (according to Oswestry Low Back Pain Disability Questionnaire). Their mental status was evaluated using the Spielberger's State-Trait Anxiety Inventory (STAI) and the Beck Depression Inventory (BDI-II). Their QOL was evaluated by the World Health Organization Quality of Life Questionnaire, brief version (WHOQOL-BREF). Results: Physical status/disability level correlated with anxiety and depression. While Physical status predicted physical QOL, mental status, and mainly anxiety and depression were the significant predictors of psychological, social, and environmental QOL. Conclusions: Mental status may play a significant role in reducing most QOL domains among patients with LDH. The evaluation and intervention process should consider both physical and mental status and their relation to the person's QOL. Since QOL is a major parameter in determining intervention type and success this elaborated perspective may contribute to the intervention planning and outcomes.