Regression Analysis of the Relationship Among the Level of Pain and Dysfunction and Psychosocial Factors in Patients With Chronic Back Pain

회귀분석을 이용한 만성요통환자의 통증 및 기능장애수준과 심리사회학적 요인의 상관성 연구

  • Choi, Im-soon (Dept. of Physical Therapy, The Graduate School, Daejeon University) ;
  • Jang, Hyun-jeong (Dept. of Physical Therapy, College of Health Medical & Science, Daejeon University) ;
  • Kim, Suhn-yeop (Dept. of Physical Therapy, College of Health Medical & Science, Daejeon University)
  • 최임순 (대전대학교 일반대학원 물리치료학과) ;
  • 장현정 (대전대학교 보건의료과학대학 물리치료학과) ;
  • 김선엽 (대전대학교 보건의료과학대학 물리치료학과)
  • Received : 2015.07.15
  • Accepted : 2015.10.30
  • Published : 2016.02.19


Background: Chronic back pain shows a high correlation with lumbar disability, physical disability for daily activities, and psychosocial factors, such as depression. Object: The purpose of this study was to examine the correlation of the level of pain and disability with psychosocial factors, which are potential disturbance variables, in patients with chronic lumbar pain. Method: The sample included 258 patients, who had complained of chronic lumbar pain for more than three months. The Quadruple Visual Analogue Scale was used to measure the level of pain, and a Korean version of Oswestry Disability Index was used to measure the level of disability. Psychosocial factors were measured using the Tampa scale for Kinesiophobia-11, Fear Avoidance Beliefs Questionnaire, and Pain Self-Efficacy Questionnaire. The collected data was analyzed using PASW 18.0, and an independent samples t-test was used to examine frequency, percentage, mean, and standard deviation of sociodemographic characteristics and major variables. Pearson's correlation coefficient was used to investigate the correlation between the level of pain and disability and psychosocial factors. Stepwise multiple regression analysis was done to determine the level of pain and psychosocial factors of functional disorder. The significance level was set at ${\alpha}=.05$. Result: There is a strong correlation between the level of pain and functional disorder and psychosocial factors in patients with chronic lumbar pain. The study also revealed that as the levels of pain and fear avoidance increase, pain self-efficacy decreases. Conclusion: The results suggest that negative perceptions towards pain, limitations of physical movement, and severe fear avoidance directly affect the decrease in pain self-efficacy. Therefore, it is recommended to test pain self-efficacy when measuring the level of pain and disability in patients with chronic low back pain.



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