Examining occupational health and safety disparities using national data: a cause for continuing concern.

BACKGROUND: Occupational status, a core component of socioeconomic status, plays a critical role in the well-being of U.S. workers. Identifying work-related disparities can help target prevention efforts. METHODS: Bureau of Labor Statistics workplace data were used to characterize high-risk occupations and examine relationships between demographic and work-related variables and fatality. RESULTS: Employment in high-injury/illness occupations was independently associated with being male, Black, ≤high school degree, foreign-birth, and low-wages. Adjusted fatal occupational injury rate ratios for 2005-2009 were elevated for males, older workers, and several industries and occupations. Agriculture/forestry/fishing and mining industries and transportation and materials moving occupations had the highest rate ratios. Homicide rate ratios were elevated for Black, American Indian/Alaska Native/Asian/Pacific Islanders, and foreign-born workers. CONCLUSIONS: These findings highlight the importance of understanding patterns of disparities of workplace injuries, illnesses and fatalities. Results can improve intervention efforts by developing programs that better meet the needs of the increasingly diverse U.S. workforce.

Nonfatal work-related injuries and illnesses - United States, 2010.

In 2012, the U.S. civilian labor force comprised an estimated 155 million workers. Although employment can contribute positively to a worker's physical and psychological health, each year, many U.S. workers experience a work-related injury or illness. In 2011, approximately 3 million workers in private industry and 821,000 workers in state and local government experienced a nonfatal occupational injury or illness. Nonfatal workplace injuries and illnesses are estimated to cost the U.S. economy approximately $200 billion annually. Identifying disparities in work-related injury and illness rates can help public health authorities focus prevention efforts. Because work-related health disparities also are associated with social disadvantage, a comprehensive program to improve health equity can include improving workplace safety and health.

Fatal work-related injuries - United States, 2005-2009.

In 2012, the U.S. civilian labor force comprised an estimated 155 million workers. Although employment can contribute positively to a worker's physical and psychological health, each year, many U.S. workers are fatally injured at work. In 2011, a total of 4,700 U.S. workers died from occupational injuries. Workplace deaths are estimated to cost the U.S. economy approximately $6 billion annually. Identifying disparities in work-related fatality rates can help public health authorities focus prevention efforts. Because work-related health disparities also are associated with social disadvantage, a comprehensive program to improve health equity should include improving workplace safety and health.

Injuries to hired crop workers in the United States: a descriptive analysis of a national probability survey.

BACKGROUND: Little empirical data are available examining the injury experience of hired crop workers in the United States (US). This study analyzed work-related injury data collected on these workers from a national survey. METHODS: Data were collected through the National Agricultural Workers Survey (NAWS) for the federal fiscal years 1999, 2002, 2003, and 2004. These data provided descriptive injury characteristics and rate estimates from a sample of 13,604 crop farm workers. RESULTS: The injury rate was 4.3 injuries per 100 week-based full-time equivalents (FTE(WB) ). The majority of the injuries occurred to male (84%) and Mexican born (72%) workers. Shuttle migrants had the highest injury rate at 7.2 injuries/100 FTE(WB) . Workers reporting one or more health conditions and workers reporting one or more musculoskeletal complaints had higher injury. The most common injury events were overexertion from lifting (20%), being struck by hand held objects (13%), and falls to a lower level (10%). Injuries due to falls to a lower level accounted for the highest average number of restricted workdays (45 days). CONCLUSIONS: The use of hand tools, falls, and lifting overexertion injuries were identified as significant causes of injury among hired crop workers. Increased injury risk was also seen for crop workers with existing health or musculoskeletal complaints. These results are useful for targeting injury prevention efforts and future research needs for this unique worker population. Am. J. Ind. Med. 54:734-747, 2011. © 2011 Wiley-Liss, Inc.

Prevalence of roll-over protective structure (ROPS)-equipped tractors on Hispanic-operated farms in the United States.

Roll-over protective structures (ROPS) are known to prevent tractor overturn deaths, but not enough tractors are equipped with them in the United States to reduce the rate of these deaths to levels seen in several European countries. Recent literature has defined the use of ROPS on US farms in general, but little is known about ROPS use on Hispanic farm operations. Data from a national survey for the calendar year 2003 were used to assess the prevalence of ROPS use on Hispanic-operated farms. Farm characteristics previously identified to be associated with low ROPS prevalence rates on other farming operations were examined for these Hispanic farming operations. The overall ROPS prevalence rate on Hispanic farms was 52.2%. Adjusted odds ratios of potential risk factors found that the region where the farm was located and the acreage of the farm appeared to be the most significant indicators of the prevalence of ROPS on Hispanic farms. In addition, the age of the farm operator, the farm status as a full- or part-time operation, and the type of farm operation were also important factors. These findings were similar to those seen for racial minority farms and the general farming population. These results can be used to target ROPS promotion programs for Hispanic farmers across the United States.

Agricultural tractor overturn deaths: Assessment of trends and risk factors.

BACKGROUND: Tractor overturn deaths have been recognized as a public health concern for decades. Studies have reported on the hazards associated with tractor overturns, but none have reported on trends in tractor overturn fatality rates in the United States (US). METHODS: Tractor overturn fatality data from the Bureau of Labor Statistics Census of Fatal Occupational Injuries were used in Poisson regression models to: identify risk factors associated with overturn fatalities; examine trends in tractor overturn fatality rates between 1992 and 2007; and assess trends in overturn fatality rates for specific risk factors. RESULTS: Characteristics found to be associated with tractor overturn fatality rates were age, type of farm, region, and the victim's relationship to the farm (P < 0.0001). Older age groups, crop farms, farms in the Midwest and Northeast, and family workers all had higher fatal tractor overturn risks. Overall, tractor overturn fatality rates declined 28.5% between 1992 and 2007. Significant decreases in tractor overturn fatality rates were found for the Northeast and South regions, hired workers, crop farms, and in every age group except those less than 25 years of age. CONCLUSIONS: Tractor overturn fatality rates decreased between 1992 and 2007. These decreases were not consistent between different categories of the agricultural workforce or regions of the US. Changes in tractor overturn fatality rates may be partially explained by increases in the prevalence of ROPS on farm tractors in the US. ROPS promotion programs are needed to reduce tractor overturn fatalities, especially among those subpopulations at highest risk.

Prevalence of ROPS-equipped tractors on minority operated farms in the US.

BACKGROUND: Tractor overturns kill an average of 100 farmers and farm workers per year. Roll-over protective structures (ROPS) are a proven intervention, but are not on a sufficient number of tractors in the US to reduce these deaths. Little has been reported on ROPS use by racial minority farm operators. METHODS: Data from the NIOSH OISPA survey were used to assess ROPS prevalence rates from a random sample of racial minority farm operators for the year 2003, and ROPS prevalence rates from a random sample of all US farms for the year 2004. RESULTS: ROPS prevalence rates on minority farming operations follow similar patterns to ROPS prevalence rates on all US farms. A low prevalence of ROPS on farms was associated with operators over the age of 65 years, farms with small acreages, and farms operated on a part-time basis. The race of the operator had little impact on ROPS prevalence rates. CONCLUSIONS: Factors such as acreage, farm operator age, region of the US, and full- or part-time farming status influence ROPS prevalence rates on farms more than the race of the operator. Understanding how ROPS prevalence differs across these farm and farm operator characteristics has the potential to efficiently target areas for ROPS promotion programs across the US.

Injuries and fatalities to U.S. farmers and farm workers 55 years and older.

BACKGROUND: Previous studies have shown that older farmers and farm workers have been identified at high risk for farm fatalities, most notably involving tractor overturns. Older farmers also incur more severe non-fatal injuries. METHODS: Data from two national surveillance systems are presented to describe fatal and non-fatal injuries occurring to older farmers 55+ years of age. Tractor-related fatality investigations for older farmers are examined for characteristics of the tractors not available in the injury surveillance systems. RESULTS: Older farmers and farm workers averaged 26,573 lost-time injuries annually in 2001 and 2004, with an injury rate of 4.5 injuries/100 workers/year compared to an overall farming injury rate of 4.8 injuries/100 workers/year. Fatality data show that older farmers accounted for over half of all farming deaths between 1992 and 2004 (3,671 of 7,064 deaths), and had a fatality rate of 45.8 deaths/100,000 workers/year compared to the overall farming fatality rate of 25.4 deaths/100,000 workers/year. Most common mechanisms of fatal injury to older farmers were "tractors" (46%), "trucks" (7%), and "animals" (5%). CONCLUSIONS: Although older farmers and farm workers are at lower risk of overall injury compared to their younger counterparts, injuries to farmers 55 years and older tend to be much more severe. To effectively minimize the risk faced by older farmers, prevention programs must encourage safe work behaviors and practices and the implementation/installation of appropriate safety devices and equipment.

Tracking the prevalence of rollover protective structures on U.S. farm tractors: 1993, 2001, and 2004.

PROBLEM: Between 1992 and 2005, 1412 workers on farms died from tractor overturns. A Rollover Protective Structure (ROPS) is a proven intervention to reduce overturn deaths. However, farm characteristics that are associated with the adoption of ROPS are not well understood. METHODS: ROPS prevalence statistics were derived from National Institute for Occupational Safety and Health (NIOSH) surveys that tracked ROPS use on farms. Data were from the years 1993, 2001, and 2004. RESULTS: In 1993, 38% of tractors were equipped with ROPS. This increased to 51% by 2004. ROPS prevalence rates were higher on farms in the Southern region of the United States, on farms where the operator was 25-34 years old, and on farms with $100,000 or more of farm sales. Low ROPS prevalence rates were associated with farm operators 65 years old or older and with farms with less than $10,000 of farm product sales. SUMMARY: The increase in ROPS prevalence between 1993 and 2004 has not been sufficient to decrease the rate of tractor overturn deaths on farms. Incentive programs targeting older farm operators and low-income farm operations are suggested to increase ROPS use on tractors. IMPACT ON INDUSTRY: The study provides farm characteristics associated with low ROPS prevalence rates. The results can be used to target farms for future ROPS promotion activities.

Fatal work-related injuries in the agriculture production sector among youth in the United States, 1992-2002.

Youth working on farms face unique risks that are not present for many other young workers, including machinery, large animals, electrical hazards, chemical hazards and excessive noise. This research identified the number and rate of occupational fatalities for youth working in the agriculture production industry, which is most closely affiliated with farming, for the years 1992-2002. The Census of Fatal Occupational Injuries (CFOI), developed by the Bureau of Labor Statistics (BLS), was the database used for the analysis. There were 310 work-related deaths to youth less than 20 years of age from 1992 through 2002 in the agriculture production sector. This compares to 1,958 total fatalities for all workers less than 20 years of age for the same time period. The number of agricultural production fatalities to youth has shown a general downward trend over this time period. The rates were higher for young workers in agriculture production than for young workers in all industries by a factor of 3.6. Fifteen year olds had the highest fatality rates with the crop production sector having a rate six times that of all 15 year old workers. The objective of this descriptive research was to identify, prioritize and publicize the risks to children and youth who work on farms in order to provide public health and safety professionals relevant information upon which to base decisions for interventions or other prevention activities for this priority population. This research also has direct applications for farm parents and safety and health professionals who work with the priority population of young agricultural workers.

Nonfatal injuries to household youth on Native American operated farms in the U.S., 2000.

In 2000, there were an estimated 7,381 youth living on 9,556 U.S. farms operated by Native Americans. Most of these youth (5,454, 74%) lived on livestock operations (6,833 farms, 72%). In that year, youth living on Native American operated farms sustained an estimated 177 nonfatal injuries. The majority of all injuries to household youth (147, 83%) occurred on livestock operations. Males accounted for 112 (63%) of the injuries to household youth. Overall, household youth on Native American operated farms had an injury rate of 24.0 injuries per 1,000 household youth compared to a rate of 8.1 injuries per 1,000 household youth on all other minority-operated farms. The rate ratio for work-related injuries to household youth on Native American farms compared to other minority-operated farms was 2.1. Although female youth on these farms experienced a similar non-work injury rate of 13.8 injuries per 1,000 female household youth compared to a rate of 15.1 injuries per 1,000 male household youth, the work-related injury rate for male youth (30.2 per 1,000 male household youth) was substantially higher than the work-related injury rate for female household youth (18.3 per 1,000 female household youth). These data indicate an elevated risk of injury for youth living on farms operated by Native Americans. This result is attributed to the large percentage of livestock operations for this population and the hazards associated with this type of farming. However, further research is needed to more fully understand these results and to guide culturally appropriate interventions within this population.

Household youth on minority operated farms in the United States, 2000: exposures to and injuries from work, horses, ATVs and tractors.

INTRODUCTION: It is likely that youth living on minority operated farms (<3% of U.S. farms) face hazards similar to the general farm population; however, since minority youth are not well represented by general farm surveys, this information hasn't been confirmed. METHOD: Nonfatal injury and exposure data were obtained from the 2000 Minority Farm Operator Childhood Agricultural Injury Survey (M-CAIS). RESULTS: On racial minority farms, there were an estimated 28,600 household youth. Of these, about 41% worked, 26% rode a horse, 23% drove an ATV, and 23% operated a tractor. On Hispanic farms, there were an estimated 17,998 household youth. Of these, 44% worked, 30% rode a horse, 27% drove an ATV, and 25% operated a tractor. CONCLUSIONS: These results show the value of conducting a survey of minorities to identify high risk groups and target issues that may be unique to the minority farm population.

Injuries to youth living on U.S. farms in 2001 with comparison to 1998.

To obtain sustained injury surveillance data for youth on farms, the National Institute for Occupational Safety and Health developed the Childhood Agricultural Injury Survey (CAIS) in collaboration with the U.S. Department of Agriculture. The first CAIS collected data for youth less than 20 years in 1998 through a regionally stratified telephone survey of 50,000 U.S. farm households; a second CAIS for 2001 was conducted using the same methodology. In 2001, there were approximately 1.2 million youth living on U.S. farms. These youth suffered an estimated 19,397 injuries (15.7/1,000 household youth). Approximately 60% (11,571) of the household youth injuries were to males. For all household youth, 10-15 year olds experienced the most injuries (49%, 9,486). In addition to providing estimates of demographics, injuries, and injury rates for household youth from the 2001 CAIS, this article provides a comparison to results from the 1998 CAIS. The number of household youth injuries on farms from 1998 to 2001 decreased by almost 30% (27,321 vs. 19,397). The results of this study show an overall decrease in the injury rate for youth living on the farm from 1998 to 2001 (18.8/1,000 household youth vs. 15.7/1,000 household youth). However, there was a considerable increase in the number of injuries to household females less than 20 years of age during this same time period. There was also an increase in the number of all terrain vehicle (ATV) and horse-related injuries. Continued surveillance is needed to assess if these are significant trends or the result of changing farm demographics.

Farm fatalities to youth 1995-2000: A comparison by age groups.

PROBLEM: Although a myriad of research illustrates the safety issues related to farm fatalities in youth populations, very little empirical evidence exists that includes work and non-work related farm fatalities to all youths under 20 years of age at the national level. METHODS: This research will use death certificate data for the six years from 1995 to 2000 that were collected by NIOSH from all 50 state vital statistics registries. Demographic data from the 1998 CAIS were used in rate calculations. In addition to providing annual fatality rates and descriptions of the general causes of death, this research will examine the variation between age groups. RESULTS: Analysis of 695 total farm-related youth fatalities shows an average annual fatality rate of 9.3 fatalities per 100,000 youths. Males account for 80% of these fatalities. The most prevalent causes of death are: machinery (25%), motor vehicle (17%), drowning (16%), suicide (8%) and homicide (6%). Of all youth fatalities occurring while at work, 45% are to youths less than 16 years of age. This same age group accounts for 71% of all non-work related fatalities. SUMMARY: This research will provide farm families and researchers more detailed information on farm hazards that contribute to the deaths of youths. As these youths may encounter hazards while working or playing in their daily environment, identification and elimination of these hazards will increase overall safety on the farm. This research also indicates the need to include youths under 16 years of age in future comprehensive farm safety research.

Characterization of hard metal dusts from sintering and detonation coating processes and comparative hydroxyl radical production.

Dust samples from sintering and detonation coating hard-metal processes were characterized, compared, and contrasted for morphology, composition, and generation of hydroxyl radicals. Inhalation of respirable hard-metal (sintered carbide) dusts from hard-metal processes is known to cause fibrotic and asthmatic lung disease. Scanning electron microscopy/energy-dispersive X-ray analysis was used for morphology, composition, and elemental distribution. An electron spin resonance (ESR) spin trapping technique was used to detect hydroxyl radical generation. Samples were incubated with air-saturated buffer solutions containing a spin trap and analyzed by ESR for the presence of *OH in solution. Postdetonation coating samples often had surface contamination of Co on the WC particles, as shown by elemental mapping of individual particles; this was not evident in predetonation samples or unsintered materials in this study. ESR measurements show that both detonation-gun materials were capable of generating *OH , while the WC, cobalt, and presintered mixture did not produce detectable amounts of *OH radicals. The DMPO/*OH adduct formation was apparently facilitated by Fe-mediated reactions for predetonation dusts, and by Fe-mediated site-specific reactions for postdetonation dusts. The overspray materials from the detonation-gun process produced 9-fold more *OH radicals than the predetonation coating mixture. Overall, this study indicates there are substantial differences between postdetonation materials and both predetonation and unsintered hard-metal process materials with respect to morphology, elemental distribution, and *OH radical generation reactions and that these differences may be important in the toxic potential of those materials.