However, in this analysis, age was significantly correlated with functional limitation, while co-morbid medical conditions did not achieve significance.
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Psychological correlates of self-reported functional limitation in patients with ankylosing spondylitis.
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The sentences
The other variables, including current tobacco use, biologic therapy, disease duration, number of medical co-morbidities, performance of back exercises and radiographic damage scores did not reach statistical significance in the hierarchal model.