Abstract

The prevalence of musculoskeletal disorder (MSD) symptoms and doctor-diagnosed musculoskeletal disorders (DDMDs) were estimated among union construction ironworkers by a telephone-administered questionnaire. Of 1996 ironworkers eligible, 1566 were contacted and 981 were interviewed. The prevalence of self-reported MSD symptoms was high for the lower back (56%), wrist/hands/fingers (40%), knees (39%), and shoulders (36%). The most common DDMDs were tendonitis (19%), ruptured disk in the back (18%), bursitis in the shoulder (15%), and carpal tunnel syndrome (12%). Generally, the prevalence of DDMDs and MSD symptoms increased with duration of employment. In age-adjusted logistic regression analyses, those who worked 25 to 35 years were more likely to have tendonitis (odds ratio [OR] 7.1, 95% confidence interval [CI] 3.1–16.6), shoulder bursitis (OR 13.7, 95% CI 3.1–60.4), knee bursitis (OR 5.1, 95% CI 1.0–25.1), and ruptured intervertebral back disk (OR 6.7, 95% CI 2.6–17.5). The effect of prior injury was also consistently high (upper extremities, OR 4.6; lower extremities OR 5.1; lower back, OR 6.0). Among workers without prior injuries, MSD symptoms were more frequent for the lower back in structural ironwork (OR 1.7, 95% CI 1.1–2.6), and for the upper extremity in concrete reinforcement ironwork (OR 1.9, 95% CI 1.2–2.9). These findings suggest that some musculoskeletal morbidity in construction ironworkers may be work related and thus preventable.

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