An Impact Evaluation of a Federal Mine Safety Training Regulation on Injury Rates Among US Stone, Sand, and Gravel Mine Workers

An Interrupted Time-Series Analysis

Bibliographic Data

ID11031959
AuthorsCeleste Monforton (0000-0003-2888-0460, Celeste Monforton is with the Department of Environmental and Occupational Health, School of Public Health and Health Services, George Washington University, Washington, DC. Richard Windsor is with the Department of Prevention and Community Health, School of Public Health and Health Services, George Washington University, Washington, DC.), Richard A Windsor (George Washington University), Richard Windsor (Celeste Monforton is with the Department of Environmental and Occupational Health, School of Public Health and Health Services, George Washington University, Washington, DC. Richard Windsor is with the Department of Prevention and Community Health, School of Public Health and Health Services, George Washington University, Washington, DC.)
Year2010
Volume100
Issue7
Pages1334-1340
Publication date2010-07-01
Peer ReviewedYes
Open AccessNo
TypeARTICLE
VenueAmerican Journal of Public Health (JOURNAL)
Journal identifiersISSN: 0090-0036 • E-ISSN: 1541-0048
PublisherAmerican Public Health Association (PUBLISHER • US)
DOI10.2105/ajph.2009.178301
PMID20466960
PMCIDPMC2882415
OpenAlexW2131121398
LanguageEN
Citations received1
References cited34

Objectives. We evaluated the impact of a safety training regulation, implemented by the US Department of Labor's Mine Safety and Health Administration (MSHA) in 1999, on injury rates at stone, sand, and gravel mining operations. Methods. We applied a time-series design and analyses with quarterly counts of nonfatal injuries and employment hours from 7998 surface aggregate mines from 1995 through 2006. Covariates included standard industrial classification codes, ownership, and injury severity. Results. Overall crude rates of injuries declined over the 12-year period. Reductions in incident rates for medical treatment only, restricted duty, and lost-time injuries were consistent with temporal trends and provided no evidence of an intervention effect attributable to the MSHA regulation. Rates of permanently disabling injuries (PDIs) declined markedly. Regression analyses documented a statistically significant reduction in the risk rate in the postintervention time period (risk rate = 0.591; 95% confidence interval = 0.529, 0.661). Conclusions. Although a causal relationship between the regulatory intervention and the decline in the rate of PDIs is plausible, inconsistency in the results with the other injury-severity categories preclude attributing the observed outcome to the MSHA regulation. Further analyses of these data are needed

Confidence interval · Environmental health · Injury prevention · Interrupted time series · Interrupted Time Series Analysis · Intervention (counseling) · Occupational safety and health · Poison control · Psychological intervention · Statistics · Suicide prevention · Agriculture and Farm Safety · Demography · Medicine · Musculoskeletal pain and rehabilitation · Nursing · Occupational Health and Safety Research

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