• I Foppa and R H Noack.
• Division of Health Research, University of Berne, Switzerland.
• Soc Sci Med. 1996 Oct 1;43(7):1119-26.

AbstractBack pain causes a considerable loss of working days as well as health care costs and therefore represents a major public health problem in industrialized countries. Psychosocial factors have received increasing attention from researchers studying the causal factors of non-specific back pain. However, most studies focus on few dimensions, like individual or work-related factors. We studied the simultaneous association of various factors representing psychosocial, behavioral, and health-related dimensions to self-reported back pain. Data from the Berne Workplace Health Project on 850 employed men and women was analyzed. Back pain was operationalized by a dichotomized variable (having suffered moderately to severely from back pain in the preceding four weeks). The theoretical model guiding the underlying project was a general demand-resource model. Variables that--according to that model--were hypothesized to be related to back pain as well as more specific factors--like physical work load--were analyzed by stepwise logistic regression analysis. In men, there was a statistical trend (P < 0.1) for several work-related factors (low job discretion, high job demands, low job satisfaction). In women, dissatisfaction with salary was the only work-related factor associated with back pain. There was no significant association between private context factors, like poor social network or high demands/low control, and back pain. Only in men, the likelihood of back pain increased with age, while only in women, back pain was associated with emotional problems (individual factors). Among the behavioral factors, smoking was associated to back pain in men, while in women none of the behavioral factors was significant. In both men and women reporting more than two functional symptoms and a history of intestinal problems were associated to back pain. All of our findings were in the expected direction, i.e., it was invariably unfavorable categories of explanatory variables that were associated with higher prevalence of back pain. However, most associations seem to be quite unspecific. There is a need for theoretically guided research aiming at the development of a more complex process model of back pain.

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