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A study on the correlation between psychosocial factors and low back pain

LIN Jianqiang,YANG Hong,LOU Zhenshan,et al. Center of Physiotherapy and Exercise Therapy,Hangzhou Sanatorium of Nanjing Military Region,Hangzhou,Zhejiang,310007  
Objective:To analyze the relationship of psychosocial factors and low back pain(LBP).Method:①Six hundred and forty LBP patients were investigated with organic physical signs,Waddell′s nonorganic physical signs(WS) and Minnesota Multiphasic Personality Inventory(MMPI).②They were divided into 4 groups according to organic and nonorganic physical signs(Group A: with organic physical signs;Group B: with nonorganic physical signs.Group C: with organic and nonorganic physical signs.Group D: neither with organic physical signs nor nonorganic physical signs).③The results of MMPI scores were compared with Chinese norms.④The relativity of data of WS with "hypochondriasis(Hs),depression(D),hysteria(Hy)" of MMPI were studied.⑤Comparisons with age,sex,course of disease and labor insurance between group A and group B were carried out.⑥To observe the effect of prolapsed lumber intervertebral disc(PLID) in group A and group C after treatment.Result:①There were no statistical significance between the results of MMPI scores and Chinese norms for group A.②The elevated scores at scales of Hs,D,Hy and psychasthenia(Pt) of MMPI for group B,C and D had significant differences from Chinese norms.③Data of "Hs-D-Hy" of MMPI and WS had statistical correlation.④There was statistical significance on age,sex,course of disease and labor insurance between group A and group B.⑤It was better for group A than group C after operation or non-operation treatment.Conclusion:①Psychosocial factors highly related with some LBP patients,they showed neurotic triad of "Hs-D-Hy".②MMPI can be replaced by WS focusing LBP to evaluate the influence of psychosocial factors on LBP.③WS can be use to follow up the prognosis of LBP.
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