Researchers analyzed initially symptom-free Japanese workers with no history of sciatica. There were 3,194 participates who completed the study.
Of the 765 participants who reported no low back pain and no history of sciatica at baseline, 18.4 percent reported sciatica during the two years of follow-up. Significant associations were found between new-onset sciatica and age and obesity. Also, in adjusted analysis, significant associations were found between new-onset sciatica and obesity and mental workload after controlling for age and sex.
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