New electric-shock job exposure matrix.
Vergara-XP; Kheifets-L; Silva-M; Bracken-TD; Yost-M
Am J Ind Med 2012 Mar; 55(3):232-240
Background: To evaluate a consistent association between jobs in ''electric'' occupations and amyotrophic lateral sclerosis (ALS), a comprehensive job exposure matrix (JEM) that includes electric shocks and magnetic fields (MF) is needed. Methods: We used incident electric shocks and electrocutions from two available data sources along with expert judgment to create a JEM that was integrated into an existing MF JEM. The final JEM contained ordinal electric-shock exposure assignments for 501 job titles. Results: Main occupational groups experiencing the electric shocks were precision production, craft, and repair occupations. Specific jobs with the highest proportion of shocks per 100,000 workers were: electrical apprentices (99.7), mechanic and repairer helpers (74.0), hoist and winch operators (63.3), and electrical power installers (52.4). Examples of job titles with low electric-shock exposures were administrative support occupations, data-key entry operators, and waiters and waitresses. Conclusions: Combining publicly available data with an expert panel is a viable method to construct an electric-shock MF JEM. This JEM will allow an evaluation of association between electric shocks and neurodegenerative diseases.
Job-analysis; Work-analysis; Worker-health; Electric-properties; Electrical-hazards; Electrical-properties; Electrical-workers; Electricity; Exposure-assessment; Employee-exposure; Employee-health; Electrical-hazards; Electrical-shock; Electrocutions; Electromagnetic-fields; Magnetic-fields; Muscular-atrophy; Muscle-tissue; Muscular-disorders; Neuromuscular-function; Neuromuscular-system-disorders; Occupations;
Author Keywords: electric shocks; electrocutions; expert panel assessment; job exposure matrix
Ximena P.Vergara, MPH, 3420 Hillview Ave, Palo Alto, CA 94304
American Journal of Industrial Medicine
University of California Los Angeles