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PubMed1998

Preserving workers' compensation benefits in a managed health care environment.

Managed care techniques are increasingly being applied in the workers' compensation setting. Many workers, labor representatives and public health advocates fear that the introduction of managed care into workers' compensation may reflect a broader employer-driven campaign to erode benefits, tighten eligibility criteria, and weaken employees' control over health care and compensation issues. The potential threats to workers can be mitigated by involving them in the design of the workers' compensation health plan and selection of provider organization, assuring access to appropriate specialists and diagnostic testing, minimizing delays, increasing accountability through contract provisions and government oversight, and enhancing communications through the use of ombudsmen and alternative dispute resolution approaches. Additional outcomes studies assessing the long-term impact of managed care in workers' compensation are needed.

Health Services Accessibility↗
PubMed1998

Health status among farm workers in the Western Cape--collateral evidence from a study of occupational hazards.

MOTIVATION: Farm workers are a marginalised occupational group whose poor living and working conditions may place them at increased risk for occupational and non-occupational morbidity and mortality. Research into the health status of farm workers has been neglected in the past. AIMS AND OBJECTIVES: As part of an investigation into the neurological and neurobehavioural effects of exposure to organophosphate insecticides, this study describes the demographics, life histories, risk factors for chronic illness and selected indicators of general health status among a group of farm workers in the Western Cape. STUDY DESIGN: Cross-sectional study conducted in the deciduous fruit farming industry in 1993. SUBJECTS: 164 pesticide applicators and 83 non-spraying controls (all men) from 73 farms, frequency matched for age and education. MEASUREMENTS: A structured questionnaire, venous blood sample for serum and erythrocyte cholinesterase, albumin, gamma glutamyl transferase and haemoglobin assessment, height and weight measurement. RESULTS: Most farm workers were children of farm workers and had lived and worked on farms for most of their lives. The study found substantial levels of illiteracy (21-44%, depending on the definition) and innumeracy (4%) and evidence of a significant morbidity burden: high levels of alcohol intake and ongoing reported application of the 'dop' system, high levels of head injury (70% of subjects) and evidence of substantial adult undernutrition. Protective equipment was relatively well distributed and used, although certain work activities (such as acting as a human marker) continue to pose substantial exposure hazards. There were no differences in respect of cholinesterase levels between spray applicators and controls, although past poisoning was reported by 9% of subjects. CONCLUSION: Farm workers appear to be a closed community with a high disease burden. Their health needs pose substantial challenges to the public health authorities.

Adult↗
PubMed2004

Prostate specific antigen level in a fertilizer factory workers.

OBJECTIVE: To find the effect of the fertilizer factory environment on serum prostatic specific antigen (PSA) levels. DESIGN: A cohort comparative study. PLACE AND DURATION OF STUDY: The study was conducted at Immunoassay Laboratory of MINAR, Multan from June 2002 to January 2004. SUBJECTS AND METHODS: A total of 205 workers, all male, of Pak Arab Fertilizer Factory, Multan had their prostatic specific antigen (PSA) estimated. The age of the workers varied between 22 to 65 years (mean age = 48.3 +/- 8.5 years). The people belonged to various working groups and most of them were on normal Pakistani diet. They had been residing/working in the factory area for a period varying from 5 to 30 years. PSA levels were also estimated in 118 normal persons to serve as a control group. The age of these persons varied from 19 to 64 years. These were mostly hospital staff and general public not residing in the factory area and had no history of prostatic disease. Sensitive and specific immunoradiometric assay techniques were applied to measure the PSA concentrations in serum. RESULTS: Observed PSA levels in this population were between 0.2 and 11.5 ng/ml. Overall mean PSA level was 1.9 +/- 0.84 ng PSA/ml. Mean PSA level observed in control group was 0.73 +/- 0.64 ng/ml (upper 95% limit was 3.2 ng/ml). Comparison of PSA levels of factory workers with values in normal subjects showed that 9 out of 205 male workers (4.3% of total) had significantly elevated levels of PSA. In 2 workers (1% of total) observed PSA levels were above 10 ng/ml. The levels above this limit are most commonly observed in the cancer patients. CONCLUSION: A significant proportion of the workers of the fertilizer factory are at risk of malignant and non-malignant disease of the prostate.

Case-Control Studies↗
PubMedDate not supplied

Tolerability, safety, and acceptability of zidovudine prophylaxis in health care workers.

OBJECTIVE: To evaluate the safety, tolerability, and acceptability of zidovudine used for prevention of human immunodeficiency virus (HIV) transmission to health care workers. METHODS: Prospective study between January 1989 and December 1992 at a suburban New York City medical center of health care workers who had percutaneous or permucosal exposures to blood or body fluids of HIV-infected patients. The zidovudine regimen offered was 200 mg orally every 4 hours for 42 days. RESULTS: Only 60 (53%) of 113 health care workers chose to take zidovudine, and only 21 (35%) of these health care workers completed the recommended 42-day course of therapy. Men were more likely than women to choose zidovudine therapy (P = .06), and a greater proportion of men completed the full 42 days of zidovudine therapy (P = .09). The most frequent reason for stopping treatment prematurely was clinical adverse reactions (n = 18 [30%]). Overall, clinical adverse events occurred in 44 (73%) of those taking zidovudine, with the most frequent events being nausea (n = 28 [47%]), headache (n = 21 [35%]), and fatigue (n = 18 [30%]). Selected laboratory parameters (hemoglobin level, hematocrit, alanine aminotransferase level, and white blood cell, granulocyte, and platelet counts) were compared at baseline and at week 4. Of interest, platelet counts were significantly more likely to increase by week 4 than to remain the same or decrease (P = .035). This observation may shed light on the mechanism of platelet elevation seen in zidovudine-treated patients infected with HIV. None of the laboratory changes was considered clinically significant. Of the 42 health care workers followed up for 3 months or longer (range, 3 to 32 months), none had undergone HIV antibody seroconversion. CONCLUSIONS: Zidovudine therapy is poorly accepted and tolerated by health care workers, at least in the dosage regimen used in this study. Alternative prophylactic regimens are needed.

Adult↗
PubMed2004

Evaluation of paranasal sinus mucosa in coal worker's pneumoconiosis: a computed tomographic study.

OBJECTIVE: To evaluate by computed tomographic scanning the paranasal mucosal changes of coal workers with and without pneumoconiosis. METHODS: Examination of images and scores from paranasal computed tomographic scans. The study participants were 26 coal workers with pneumoconiosis, 29 coal workers without pneumoconiosis, and 20 controls. All were men. The extent and patterns of inflammatory paranasal sinus disease were evaluated on computed tomographic scans by 2 radiologists using the terminology and definitions of Newman and associates. RESULTS: Interobserver agreement for the presence of abnormalities was from good to excellent (kappa, 0.63-0.89). The mucosal scores of individuals and groups were higher for coal workers than for control subjects. Both scores were significantly higher in the pneumoconiosis group than in the 2 other groups. CONCLUSIONS: This study shows that paranasal sinuses were affected more severely in coal workers than in control subjects. In coal workers with pneumoconiosis, the affection was most severe. The relationship between coal dust exposure and paranasal mucosal changes needs further study.

Adult↗
PubMed2005

Mycobacterium tuberculosis infection in health care workers in rural India: comparison of a whole-blood interferon gamma assay with tuberculin skin testing.

CONTEXT: Mycobacterium tuberculosis infection in health care workers has not been adequately studied in developing countries using newer diagnostic tests. OBJECTIVES: To estimate latent tuberculosis infection prevalence in health care workers using the tuberculin skin test (TST) and a whole-blood interferon gamma (IFN-gamma) assay; to determine agreement between the tests; and to compare their correlation with risk factors. DESIGN, SETTING, AND PARTICIPANTS: A cross-sectional comparison study of 726 health care workers aged 18 to 61 years (median age, 22 years) with no history of active tuberculosis conducted from January to May 2004, at a rural medical school in India. A total of 493 (68%) of the health care workers had direct contact with patients with tuberculosis and 514 (71%) had BCG vaccine scars. INTERVENTIONS: Tuberculin skin testing was performed using 1-TU dose of purified protein derivative RT23, and the IFN-gamma assay was performed by measuring IFN-gamma response to early secreted antigenic target 6, culture filtrate protein 10, and a portion of tuberculosis antigen TB7.7. MAIN OUTCOME MEASURES: Agreement between TST and the IFN-gamma assay, and comparison of the tests with respect to their association with risk factors. RESULTS: A large proportion of the health care workers were latently infected; 360 (50%) were positive by either TST or IFN-gamma assay, and 226 (31%) were positive by both tests. The prevalence estimates of TST and IFN-gamma assay positivity were comparable (41%; 95% confidence interval [CI], 38%-45% and 40%; 95% CI, 37%-43%, respectively). Agreement between the tests was high (81.4%; kappa = 0.61; 95% CI, 0.56-0.67). Increasing age and years in the health profession were significant risk factors for both IFN-gamma assay and TST positivity. BCG vaccination had little impact on TST and IFN-gamma assay results. CONCLUSIONS: Our study showed high latent tuberculosis infection prevalence in Indian health care workers, high agreement between TST and IFN-gamma assay, and similar association between positive test results and risk factors. Although TST and IFN-gamma assay appear comparable in this population, they have different performance and operational characteristics; therefore, the decision to select one test over the other will depend on the population, purpose of testing, and resource availability.

Adult↗
PubMed2006

Respiratory symptoms, pulmonary function, and markers of inflammation among bar workers before and after a legislative ban on smoking in public places.

CONTEXT: Scotland prohibited smoking in confined public places on March 26, 2006. OBJECTIVE: To investigate the association of smoke-free legislation with symptoms, pulmonary function, and markers of inflammation of bar workers. DESIGN, SETTING, AND PARTICIPANTS: This prospective observational study was conducted in Tayside, Scotland from February-June 2006. One hundred five nonasthmatic and asthmatic nonsmoking bar workers were initially enrolled, of whom 77 completed the study per protocol. MAIN OUTCOME MEASURES: Respiratory and sensory symptoms, spirometry measurements, serum cotinine levels, peripheral inflammatory cell count, asthma quality-of-life scores, and exhaled nitric oxide levels were evaluated before and after introduction of the smoking ban. RESULTS: For the per-protocol analysis, the percentage of bar workers with respiratory and sensory symptoms decreased from 79.2% (n = 61) before the smoke-free policy to 53.2% (n = 41) (total change, -26%; 95% confidence interval [CI], -13.8% to -38.1%; P<.001) and 46.8% (n = 38) (-32.5%; 95% CI, -19.8% to -45.2%; P<.001) 1 and 2 months afterward. Forced expiratory volume in the first second increased from 96.6% predicted to 104.8% (change, 8.2%; 95% CI, 3.9% to 12.4%; P<.001) and then 101.7% (change, 5.1%; 95% CI, 2.1% to 8.0%; P = .002), and serum cotinine levels decreased from 5.15 ng/mL to 3.22 ng/mL (change, -1.93 ng/mL; 95% CI, -2.83 to -1.03 ng/mL; P<.001) and then 2.93 ng/mL (-2.22 ng/mL; 95% CI, -3.10 to -1.34 ng/mL; P<.001). The total white blood cell and neutrophil count was reduced from 7610 to 6980 cells/microL at 2 months (-630 cells/muL; 95% CI, -1010 to -260 cells/microL; P = .002) and from 4440 to 4030 cells/microL (-410 cells/microL; 95% CI, -740 to -90 cells/microL; P = .03), respectively. Asthmatic bar workers also had less airway inflammation, with a reduction in exhaled nitric oxide from 34.3 parts per billion (ppb) to 27.4 ppb 1 month after the ban (0.8-fold change; 95% CI, 0.67 to 0.96 ppb; P = .04), and Juniper quality-of-life scores increased from 80.2 to 87.5 points (7.3 points; 95% CI, 0.1 to 14.6 points; P = .049). CONCLUSIONS: Smoke-free legislation was associated with significant early improvements in symptoms, spirometry measurements, and systemic inflammation of bar workers. Asthmatic bar workers also had reduced airway inflammation and improved quality of life.

Adult↗
PubMed1996

Longitudinal evaluation of dose-response relationships for environmental exposures and pulmonary function in swine production workers.

Studies describing respiratory health hazards for workers in swine production facilities have been published in the United States, Sweden, Canada, the Netherlands, and Denmark. Up to 50% of these workers experience bronchitis, organic dust toxic syndrome, hyper-reactive airways disease, chronic mucous membrane irritation, and other respiratory effects. These studies clearly point to the fact that this occupational environment poses a significant health risk hazard, and that control methods are needed to protect the worker. Before precise control strategies can be developed, implemented, and evaluated, dose-response studies are required to determine acceptable target levels for exposure. A previous manuscript described the development of multiple regression equations characterizing the relationships between environmental exposures and pulmonary response in a cohort of 207 swine producers. Baseline pulmonary function was included as a significant predictor of cross-shift decrements in pulmonary function in addition to personal measurements of dust, endotoxin, and ammonia concentrations. These equations were then used to predict specific exposure levels of dust and ammonia that could be expected to elicit significant decrements in cross-shift pulmonary function. This paper presents the results from analysis of follow-up data obtained on this same cohort 2 years after the initial measurements. At the second measurement period of the study (time-2), swine workers were found to have a mean cross-shift decrease in FEV1 of 2%. Cross-shift change in FEV1 was significantly correlated with personal exposures to total dust, total endotoxin, respirable endotoxin, and ammonia. The magnitude of the decrease in FEV1 was associated with increasing airborne concentrations of these environmental parameters thus confirming the dose-response relationship observed in the initial study (time-1). The correlation of dust with FEV1 changes in workers with more than 6 years of exposure (time-1 data) and more than 10 years of exposure (time-2 data) suggests that dust exposure is an important factor in chronic respiratory disease. Additionally, the correlation of endotoxins with FEV1 changes in the group with less than 6 years exposure (time-2 data) suggests endotoxins may have more significance for subacute respiratory effects. The agreement between observed cross-shift FEV1 changes measured in time-2 with changes predicted using regression equations derived from time-1 data demonstrates a consistent dose-response relationship over time for this cohort of swine production workers. This finding provides further support for conclusions of the previous study that levels of 2.5 mg/m3 (total dust) and 7.5 ppm (ammonia) are reasonable guidelines for occupational exposure limits in this environment.

Adult↗
PubMed1996

Mortality of workers at a nuclear materials production plant at Oak Ridge, Tennessee, 1947-1990.

The Y-12 plant at Oak Ridge, Tennessee, produced nuclear materials for the U.S. government's nuclear weapons program beginning in 1943. Workers at Y-12 were exposed to low dose, internal, alpha radiation and external, penetrating radiation, as well as to beryllium, mercury, solvents, and other industrial agents. This paper presents updated results from a long-term mortality study of workers at Y-12 between 1947 and 1974, with follow-up of white men through 1990 and data reported for the first time for women and men of other races. Vital status was determined through searches of the National Death Index and other records, and the workers' mortality was compared to the national population's using standardized mortality ratios (SMRs). Total mortality was low for all Y-12 workers and total cancer mortality was as expected. Among the 6,591 white men, there were 20% more lung cancer deaths than expected (95% confidence interval [CI] 1.04-1.38). Death rates from brain cancer and several lymphopoietic system cancers were also elevated among white men, with SMRs of 1.28 and 1.46. Mortality from cancer of the pancreas, prostate, and kidney was similarly elevated. There was evidence of excess breast cancer among the 1,073 female workers (SMR 1.21, 95% CI 0.60-2.17). Lung cancer mortality among these workers warrants continued surveillance because of the link between internal alpha radiation exposure and this disease, but other agents, notably beryllium, also merit considerations as potential causes of lung cancer. Other cancers and agents should also be investigated as part of a comprehensive study of the health consequences of the production of nuclear weapons.

Adult↗
PubMed1996

Cancer risks among iron and steel workers in Anshan, China, Part I: Proportional mortality ratio analysis.

A standardized proportional mortality ratio (SPMR) study of 8,887 deaths during 1980-1989 among male workers in a large integrated iron-steel complex in Anshan, China, was conducted to provide clues to occupational risk factors. Accidents and cancer accounted for a higher proportion of deaths among the iron-steel workers than among the general male population (SPMR = 1.21; 95% CI = 1.12-1.31 and 1.14; 95% CI = 1.10-1.18, respectively). Among all workers, SPMRs were significantly elevated for stomach, lung, and colorectal cancers (SPMR = 1.37, 1.37, 1.38, respectively), but not other cancers. Risks of stomach cancer appeared to be highest among workers employed in jobs with exposure to iron and coal dust, whereas significant increases in colorectal cancer were seen for loading and other dusty jobs and for administrative and sedentary jobs without dust exposure. Risks of lung cancer appeared increased for a variety of jobs throughout the complex, especially those with probable high levels of exposure to polycyclic hydrocarbons and asbestos. Risk of esophageal cancer was significantly elevated for fire-resistant brick makers, and risk of nonmalignant respiratory disease was significantly elevated for those employed as furnace workers, foundry workers, and fire-resistant brick makers.

Accidents, Occupational↗
PubMed1996

Cancer incidence among alachlor manufacturing workers.

A historical cohort study was conducted to evaluate cancer incidence among chemical workers with occupational and environmental exposure to alachlor, the active ingredient in a family of pre-emergent acetanilide herbicides. The study followed 943 workers with at least 1 year of cumulative employment at the Monsanto plant in Muscatine, Iowa, from startup of the alachlor manufacturing process in March 1968 through December 1990. Approximately 96% of all workers were successfully traced to determine their last known residence and cancer status. Eighteen workers were diagnosed with cancer during the follow-up period, based on pathology information from the statewide cancer registry maintained by the State Health Registry of Iowa. The standardized incidence ratio for all cancers was 1.5 (95% CI 0.9-2.4) for all workers exposed to alachlor, which was due primarily to elevated rates for colorectal cancer and chronic myeloid leukemia. Workers with 5 or more years in estimated high alachlor exposure jobs had elevated rates of colorectal cancer (3 cases, SIR = 5.2, 95% CI 1.1-15.1). Interpretation of the study results is limited by the small size of the study population, minimal length of follow-up, and current information concerning alachlor metabolism in primates and humans. Nonetheless, the findings suggest the need for continued evaluation of this and other alachlor-exposed cohorts.

Acetamides↗
PubMed1997

Liver function alterations in synthetic leather workers exposed to dimethylformamide.

A cross-sectional study of the prevalence of chronic liver function alterations was performed in 75 workers employed in a synthetic leather factory, exposed to dimethylformamide (DMF) air concentrations below threshold limit values (30 mg/m3). Biological monitoring among workers revealed acceptable urine levels of monomethylformamide (NMF) on average, but the very wide range indicated that occasional overexposure was possible. The worker survey showed a high percentage of disulfiram-like symptoms (50%) and liver function abnormalities (22.7%), compared with a demographically similar group of unexposed workers. Covariance analysis (ANCOVA) revealed that enzyme levels were significantly higher in exposed workers than in controls after data were corrected for age, alcohol consumption, body mass index, and cholesterol levels. The authors conclude that DMF can cause liver diseases even if air TLVs are respected, because accidental contact with liquid DMF can significantly increase DMF uptake. In this situation, air monitoring is no longer sufficient to evaluate worker exposure.

Adult↗
PubMed1998

Biological monitoring of workers exposed to carbon disulfide.

Urinary 2-thiothiazolidine-4-carboxylic acid (TTCA) concentrations and corresponding personal breathing zone carbon disulfide (CS2) air concentrations were measured for worker populations at a Tennessee rubber product facility and a Virginia viscose rayon plant. At the rubber product facility, all of the 19 workers had urinary TTCA levels less than the limit of detection (LOD) of about 0.03 mg/L, equivalent to less than 0.5 ppm of CS2 in air. At the viscose rayon plant, five of six workers, although wearing half-mask cartridge respirators, showed increased urinary TTCA during the workshift. The cutters and spinners had the largest increases in urinary TTCA concentrations; they also had the highest breathing zone exposures to CS2. The TTCA concentrations for three cutters and spinners did not return to normal preshift levels of < 0.3 mg/g creatinine before the start of the next shift. The arithmetic mean respirator workplace protection factor (WPF) was 7.0 +/- 2.2. Increase in urinary TTCA concentration during the workshift and postshift urinary TTCA concentration reflected CS2 air concentration equally well. In conjunction with air monitoring results, urinary TTCA concentrations allow determination of the WPF afforded workers wearing respirators and identify workers not adhering to safety rules and good work practices. Workers at risk of adverse health effects from overexposure to CS2 for any reason may thus be identified.

Air Pollutants, Occupational↗
PubMed1998

Biomarkers of nasal inflammation in wood-surface coating industry workers.

Upper airway symptoms in workers employed in the manufacture of wood products using ultraviolet radiation curing or acid curing of surface coating have been reported. In this study, workers were divided into groups according to exposure: (1) UV-surface coating line, (2) acid curing surface coating line, (3) finishing processes of UV-cured acrylate coated products, (4) finishing processes of of both UV- and acid cured coated wood products, and (5) control group. The workers were examined with nasal lavage in order to investigate inflammatory signs (ECP, tryptase, albumin and microscopy with cell differential counting). UV-line workers and finishers had significantly increased levels of ECP in nasal lavage. There was a positive correlation between exposure time and ECP and albumin levels. Workers with general nasal complaints and atopics had increased levels of ECP. In this study there were findings indicating an inflammatory process in the nasal mucosa in workers exposed to UV radiation curing multifunctional acrylate coatings. The findings indicate an unspecific inflammation and, therefore, a correlation between occupational exposure to acrylate coatings and nasal inflammation seems probable.

Acrylates↗
PubMed1999

Blood lead levels among children of lead-exposed workers: A meta-analysis.

BACKGROUND: To further assess the utility of targeted blood lead screening for children from households with members having occupational lead exposures, we conducted a meta-analysis of all available reports of take-home lead exposures. Our objective was to estimate the blood lead levels among U.S. children (ages 1-5) from households with lead-exposed workers. METHODS: Reports considered for inclusion were cited in Medline, Toxline, Excerpta Medica, and Bio-Med plus all unpublished reports available at the National Institute for Occupational Safety and Health through 1994. The a priori criteria for inclusion of U.S. reports required their having data on: (1) venous blood lead levels for children, (2) children's ages, (3) data for at least five children, (4) workers' occupations, (5) workers' blood lead levels, and (6) data collection methods. RESULTS: Based on a meta-analysis of 10 reports from 1987 through 1994, the children (n=139) of lead-exposed workers (n=222) had a geometric mean blood lead level of 9.3 microg/dL compared to a U.S. population geometric mean of 3.6 microg/dL (P=0.0006). Also in this group, 52% of the children had blood lead levels (BLLs) >/= 10 microg/dL compared to 8.9% in the U.S. (P=.0010), and 21% of the children had BLLs >/= 20 microg/dL compared to 1.1% in the U.S. (P=. 0258). CONCLUSIONS: We estimate, based on 1981-83 survey data, that there are about 48,000 families with children under six living with household members occupationally exposed to lead. If the findings from this meta-analysis (admittedly limited by small numbers) are generalizable, about half of the young children in these families may have BLLs >/= 10 microg/dL. Data were too sparse to determine if children of workers with elevated blood leads were at greater risk than children whose parents were only known to be lead exposed. Our findings support the position that children of lead-exposed workers should be targeted for blood lead screening. Am. J. Ind. Med. 36:475-481, 1999. Published 1999 Wiley-Liss, Inc.

Child, Preschool↗
PubMed2000

Impact of a worker notification program: assessment of attitudinal and behavioral outcomes.

BACKGROUND: Hundreds of worker notification programs are conducted each year to communicate occupational risks to workers. However, few attempts have been made to evaluate their effectiveness and few have described how communication theories are applied in developing notification messages. We developed and assessed the effectiveness of a worker notification program at a beryllium machining plant. METHODS: We compared self-protective attitudinal and behavioral responses among workers in two plants: (1) an intervention plant that received beryllium risk notification and (2) a matched control plant that did not receive notification. RESULTS: Workers receiving notification reported significantly stronger perceptions of threat and efficacy, more positive attitudes toward safety practices, and engaged in more protective behaviors than the workers at the control plant. CONCLUSIONS: This study demonstrates the utility of applying communication theories in the development of notification messages and the results suggest that mass presentations may be just as effective, if not more so, than one-on-one notifications. Am. J. Ind. Med. 37:205-213, 2000. Published 2000 Wiley-Liss, Inc.

Adult↗
PubMed2000

The impact of agricultural injury on farm owners and workers in Alabama and Mississippi.

BACKGROUND: Few studies have assessed the consequences of agricultural injury and none have done so comparing Caucasian and African-American farm owners and workers. METHODS: 1244 farmers were enrolled and prospectively observed between 1994-1996 for farming-related injuries. Injured farmers provided information on the consequences of injuries. RESULTS: One-hundred and thirty-one subjects reported a total of 140 injuries. The majority of injuries were classified as minor or moderate and required medical attention. African-American farm workers tended to have more severe injuries. Nearly all injured subjects experienced acute residual effects (e.g., pain when moving), while persistent effects occurred in about half of the injured subjects, the latter being more common among African-American workers. Lost work was a frequent nonmedical effect of the injury. African-American workers tended to be more likely to lose work and/or be hurt financially. CONCLUSIONS: The impact of agricultural injury is nontrivial, particularly for African-American farm workers. The provision of better medical care facilities for African-American farm workers may be a positive approach for reducing the impact of agricultural injuries in this population.

Absenteeism↗
PubMed2000

Mortality among rubber chemical manufacturing workers.

BACKGROUND: A retrospective cohort mortality study evaluated ischemic heart disease (IHD) among workers in the "rubber chemicals" manufacturing department of a Western New York plant. A previous study at the plant found elevated chest pain and angina among workers in this department. METHODS: Mortality experience of workers employed from 1946-1988 was followed through December 31, 1994. Mortality was compared to U.S. population rates and to local Niagara county rates by using the NIOSH life table analysis system. Poisson regression was used to examine patterns of IHD within the cohort. RESULTS: The standardized mortality ratio (SMR) for IHD among workers in the rubber chemicals department was 1.51 (U.S. rates) and 1.19 (Niagara county rates). Increased mortality from IHD in the rubber chemicals department was most pronounced at younger ages (< 50, SMR = 2.4); workers in a second chemical production department also had an elevated (but not statistically significant) SMR of 1.5 for IHD. CONCLUSIONS: IHD mortality among workers in the rubber chemicals department was elevated, particularly among those under 50 years of age. Potential occupational risk factors for IHD include the rotating shift pattern for employees assigned to two chemical production departments and chemical exposures present in the rubber chemicals department.

Adolescent↗