Publications by authors named "Kirsten Almberg"

Introduction: Previous studies suggest respirable crystalline silica (RCS) is an important driver of resurgent pneumoconiosis among US coal miners. Although greater attention has been focused on dust exposures in underground coal miners, surface miners are also at risk of severe disease. This study explores RCS exposure in this population.

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Background: Coal mining involves heavy physical demand, which is associated with increased risk of injury and long-term musculoskeletal health disorders and chronic pain. Management of chronic or recurrent pain is in turn associated with prescription opioid use and risk of opioid use disorder (OUD).

Methods: We analyzed clinical data from 5463 coal miners evaluated between 2004 and 2015.

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Objectives: Research characterizing work-related injuries and illnesses (WRII) has predominantly focused on inpatients and deaths, despite evidence that 4% of WRII are admitted as inpatients and deaths are less than 0.2% of acute WRII. Our aim is to determine the usefulness of incorporating emergency department (ED) hospital data into current occupational health surveillance systems.

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Article Synopsis
  • Previous studies indicate that overexposure to respirable crystalline silica (RCS) is linked to the rising cases of pneumoconiosis among US coal miners, particularly severe cases in Central Appalachia.
  • Our analysis of RCS levels from coal mine dust data (1982-2021) shows that mines in Central Appalachia had consistently higher respirable quartz levels compared to other regions.
  • Despite a significant decrease in respirable quartz concentrations over time, factors like mine size, location, and safety practices still contribute to heightened RCS exposure, supporting the connection to coal workers' pneumoconiosis resurgence.
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Context.—: Overexposure to respirable coal mine dust can cause severe lung disease including progressive massive fibrosis (PMF). Field emission scanning electron microscopy with energy dispersive x-ray spectroscopy (FESEM-EDS) has been used for in situ lung dust particle analysis for evaluation of disease etiology.

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  • Spirometry is the main test for assessing lung function in coal miners, but it may not fully capture lung impairment; researchers aimed to examine a different measure, called single-breath diffusing capacity for carbon monoxide (D), in former coal miners.
  • Analysis of data from over 3,100 former miners revealed that 20.2% showed diffusion impairment, with a notable portion (10%) of those with normal spirometry also affected.
  • The study concluded that diffusion impairment is common among former miners, suggesting that incorporating D tests into evaluations can better detect early lung disease alongside traditional spirometry.
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Introduction: Motor vehicle crashes (MVCs) are the leading cause of work-related deaths in the United States. The increasing popularity of the competitive rideshare market and the lack of oversight over workforce health and safety limits understanding of the current occupational hazards and associated risk factors faced by this precarious workforce. The objective of this analysis was to determine what the personal, social and occupational risk factors for work-related crashes in rideshare drivers are in the United States and suggest further research required to understand occupational health risks and opportunities for interventions.

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  • The US Department of Labor does not fund certain pulmonary function tests for coal miners, making it difficult to evaluate disabilities properly.
  • A study analyzed data from coal miners to understand the relationships between various pulmonary metrics and the severity of lung disease seen in radiographs.
  • Results indicated that diffusing capacity (D) is a strong predictor of exercise-induced abnormalities and that the severity of pneumoconiosis significantly correlates with impairments, suggesting that funding for D testing should be considered.
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Context.—: The pathology of coal workers' pneumoconiosis (CWP) and its most severe form-progressive massive fibrosis (PMF)-in US coal miners has changed in recent years. Severe disease is occurring in younger miners and has been linked to an increase in silica dust exposure.

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Background: Pneumoconiosis among coal miners in the USA has been resurgent over the past two decades, despite modern dust controls and regulatory standards. Previously published studies have suggested that respirable crystalline silica (RCS) is a contributor to this disease resurgence. However, evidence has been primarily indirect, in the form of radiographic features.

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Article Synopsis
  • The study aims to evaluate a new method, quantitative microscopy-particulate matter (QM-PM), for analyzing lung dust in coal miners with progressive massive fibrosis, addressing limitations of existing methods.
  • QM-PM was found to produce results comparable to pathologists' assessments and scanning electron microscopy analyses, revealing higher mineral density in contemporary miners compared to historical miners and controls.
  • This automated technique offers a reliable, efficient way to characterize lung dust and could enhance understanding of occupational lung diseases.
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Background: While safety in US coal mining has improved over the past two decades, general occupational health research shows that risk of injury varies across individual worksites and is influenced by worksite safety cultures and practices.

Methods: In this longitudinal study, we evaluated whether mine-level characteristics reflecting poor adherence to health and safety regulations in underground coal mines are associated with higher acute injury rates. We aggregated Mine Safety and Health Administration (MSHA) data by year for each underground coal mine for the period 2000-2019.

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Objective: To characterize differences in mining jobs and tenure between contemporary (born 1930+, working primarily with modern mining technologies) and historic coal miners with progressive massive fibrosis (PMF).

Methods: We classified jobs as designated occupations (DOs) and non-DOs based on regulatory sampling requirements. Demographic, occupational characteristics, and histopathological PMF type were compared between groups.

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Objectives: Coal miners suffer increased mortality from non-malignant respiratory diseases (NMRD), including pneumoconioses and chronic obstructive pulmonary disease, compared with the US population. We characterised mortality trends from NMRD, lung cancer and ischaemic heart disease (IHD) using data from the Federal Black Lung Program, National Coal Workers' Health Surveillance Program and the National Death Index.

Methods: We compared mortality ORs (MORs) for NMRD, lung cancer and IHD in former US coal miners to US white males.

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Objectives: To investigate differences in workplace exposure, demographic and clinical findings in engineered stone (ES) workers from a multinational consortium using the Engineered Stone Silicosis Investigators (ESSI) Global Silicosis Registry.

Methods: With ethics board approval in Israel, Spain, Australia and the USA, ES workers ages 18+ with a physician diagnosis of work-related silicosis were enrolled. Demographic, occupational, radiologic, pulmonary function and silica-related comorbidity data were compared cross-sectionally among countries using analysis of variance, Fisher's exact tests and logistic regression.

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The reasons for resurgent coal workers' pneumoconiosis and its most severe forms, rapidly progressive pneumoconiosis and progressive massive fibrosis (PMF), in the United States are not yet fully understood. To compare the pathologic and mineralogic features of contemporary coal miners with severe pneumoconiosis with those of their historical counterparts. Lung pathology specimens from 85 coal miners with PMF were included for evaluation and analysis.

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Article Synopsis
  • The study aimed to assess lung function issues in former coal miners, arguing that previous research mainly focused on active miners, which may overlook the extent of chronic respiratory diseases.
  • An analysis of data from 2,568 former miners revealed that 56.6% had abnormal lung function, with a notable prevalence of airflow obstruction, especially in older miners and even in those who never smoked.
  • The results highlight that significant lung impairment exists not just in smokers but also in never-smokers among the coal miners, emphasizing the need to recognize both physiological and imaging changes linked to coal mine dust exposure.
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The U.S. Department of Labor administers the Federal Black Lung Program (FBLP), an administrative system charged with managing claims by coal miners for workers' compensation for totally disabling coal mine dust lung disease.

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Background: The first hour of a shift in a mine is characterized by a large movement of miners from incoming and outgoing shifts, in addition to safety and maintenance checks of mining equipment. These activities rely on communication to ensure a safe transition between shifts. This study aims to identify risk factors for injury among miners during the first hour of a work shift and to characterize injury outcomes.

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Objectives: The natural history of coal workers' pneumoconiosis (CWP) after cessation of exposure remains poorly understood.

Methods: We characterised the development of and progression to radiographic progressive massive fibrosis (PMF) among former US coal miners who applied for US federal benefits at least two times between 1 January 2000 and 31 December 2013. International Labour Office classifications of chest radiographs (CXRs) were used to determine initial and subsequent disease severity.

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Synopsis of recent research by authors named "Kirsten Almberg"

  • - Kirsten Almberg's recent research predominantly focuses on occupational health issues related to coal mining, specifically investigating the impacts of respirable crystalline silica exposure and its association with lung diseases such as coal workers' pneumoconiosis and progressive massive fibrosis.
  • - Almberg emphasizes the importance of emergency department data in understanding work-related injuries and illnesses, advocating for improved surveillance systems that extend beyond inpatient data to better capture the realities faced by coal miners and other at-risk workers.
  • - The author also explores innovative methodologies for assessing lung function in former coal miners, highlighting the limitations of traditional spirometry and emphasizing the need for comprehensive assessments that include diffusing capacity measurements to enhance medical surveillance and disability evaluations.