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An intervention effectiveness study of hazard awareness training in the construction building trades.

Sokas-RK; Emile-J; Nickels-L; Gao-W; Gittleman-JL
Public Health Rep 2009 Jul-Aug; 124(Suppl 1):161-168
OBJECTIVE: We evaluated knowledge, attitudes, and self-reported work practices among apprentice and journeyman trainees in two construction trades at baseline and three months after participation in two training sessions as part of a 10-hour Occupational Safety and Health Administration hazard awareness training program. We developed preliminary assessment of prior and current training impact, accounting for demographics, trade, and construction site safety climate. METHODS: Participants were recruited prior to union-delivered safety training, self-completed a baseline survey prior to class, and completed a follow-up interviewer-administered telephone survey three months later. Discrimination (D) testing evaluated knowledge questions, paired t-tests examined differences in pre- and post-intervention knowledge, and attitude responses were tested with the Wilcoxon signed rank test. Linear regression analysis and logistic regression were used to assess the contribution of different categorical responses to specific sub-questions. RESULTS: Of 175 workers completing the baseline survey, 127 were born in the U.S. and 41 were born in Mexico; 40% of those who reported ethnicity were Hispanic. Follow-up surveys were completed by 92 (53%) respondents and documented significant increases in both fall safety and electrical safety knowledge. The most recent safety climate was associated with improvement in fall safety attitudes (slope = 0.49, p < 0.005) when adjusted by country of birth (slope = 0.51, p < 0.001). Workers born in Mexico had less formal education than U.S.-born workers and lower baseline knowledge scores, but more positive attitude scores at baseline and greater improvements in attitude at follow-up. CONCLUSION: Knowledge and attitude improvement following a one-hour safety class was measurable at three months in both U.S.-born and Mexican-born construction workers.
Construction; Construction-industry; Construction-workers; Demographic-characteristics; Epidemiology; Exposure-assessment; Exposure-levels; Exposure-methods; Occupational-exposure; Occupational-hazards; Questionnaires; Racial-factors; Safety-education; Safety-measures; Safety-practices; Safety-programs; Statistical-analysis; Training; Work-areas; Work-environment; Worker-health; Work-operations; Workplace-monitoring; Workplace-studies; Work-practices
Rosemary K. Sokas, MD, MOH, University of Illinois at Chicago, School of Public Health, Division of Environmental and Occupational Health Sciences, M/C-922, 2121 W. Taylor St., Chicago, IL 60612
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Journal Article
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Cooperative Agreement; Construction
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Public Health Reports
Performing Organization
Center to Protect Workers' Rights