Pain
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Recent research has found individual differences in back pain patients due to behavioral avoidance vs persistence. However, there is a lack of prospective studies of nonspecific low back pain patients. The avoidance-endurance model (AEM) suggests at least 3 pathways leading to chronic pain: fear-avoidance response, distress-endurance response, and eustress-endurance response. ⋯ All 3 maladaptive groups revealed a higher pain intensity than the adaptive patients at follow-up after 6 months; however, disability at follow-up was elevated only in the fear-avoidance and distress-endurance patients. The study provides preliminary evidence for the construct and prospective validity of AEM-based subgroups of subacute, nonspecific back pain patients. The results suggest the need for individually targeted cognitive behavioral treatments in the maladaptive groups.
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The aim of this study was to test the capacity of the Fear Avoidance Model to explain the relationship between pain and disability in patients with whiplash-associated disorders. Using the method of Baron and Kenny, we assessed the mediating effect of fear of movement on the cross-sectional and longitudinal relationships between pain and disability. Two hundred and five subjects with neck pain due to a motor vehicle accident provided pain intensity (0 to 10 numerical rating scale), fear of movement (Tampa Scale of Kinesiophobia and Pictorial Fear of Activity Scale) and disability (Neck Disability Index) scores within 4 weeks of their accident, after 3 months, and after 6 months. ⋯ Contrary to our initial hypothesis, the proportion of the total effect of pain on disability that was mediated by fear of movement did not substantially change as increasing time elapsed after the accident. The proportion mediated was slightly higher when fear of movement was measured by Tampa Scale of Kinesiophobia as compared with Pictorial Fear of Activity Scale. The findings of this study suggest that the Fear Avoidance Model plays a role in explaining a moderate proportion of the relationship between pain and disability after whiplash injury.
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This study undertook an economic analysis of the costs of early retirement due to back problems, with the aim of quantifying how much lower the value of accumulated wealth of individuals who exit the workforce early due to back problems is by the time they reach the traditional retirement age of 65 years--compared to those who remained in the workforce. This was done using the output dataset of the microsimulation model Health&WealthMOD. It was found that over 99% of individuals who are employed full time will have accumulated some wealth at age 65 years, whereas as little as 74% of those who are out of the labour force due to back problems will have done so. ⋯ This is far lower than the median value of accumulated wealth for those women aged 55-64 years who remained in the labour force full time, who will have $214,432 of accumulated wealth at age 65 years. Not only will early retirement due to back problems limit the immediate income available to individuals, but it will also reduce their long-term financial capacity by reducing their wealth accumulation. Maintaining the labour force participation of those with back problems, or preventing the onset of the disease, should be a priority in order to maintain living standards comparable with others who do not suffer from this condition.