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Sökning: WFRF:(Bryngelsson Ing Liss)

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71.
  • Westberg, Håkan, et al. (författare)
  • Inflammatory markers and exposure to airborne particles among workers in a Swedish pulp and paper mill
  • 2016
  • Ingår i: International Archives of Occupational and Environmental Health. - : Springer Science and Business Media LLC. - 0340-0131 .- 1432-1246. ; 89:5, s. 813-822
  • Tidskriftsartikel (refereegranskat)abstract
    • To study the relationship between exposure to airborne particles in a pulp and paper mill and markers of inflammation and coagulation in blood. Personal sampling of inhalable dust was performed for 72 subjects working in a Swedish pulp and paper mill. Stationary measurements were used to study concentrations of total dust, respirable dust, PM10 and PM2.5, the particle surface area and the particle number concentrations. Markers of inflammation, interleukins (IL-1b, IL-6, IL-8, and IL-10), C-reactive protein (CRP), serum amyloid A (SAA), and fibrinogen and markers of coagulation factor VIII, von Willebrand, plasminogen activator inhibitor, and D-dimer were measured in plasma or serum. Sampling was performed on the last day of the work free period of 5 days, before and after the shift the first day of work and after the shifts the second and third day. In a mixed model analysis, the relationship between particulate exposures and inflammatory markers was determined. Sex, age, smoking, and BMI were included as covariates. The average 8-h time-weighted average (TWA) air concentration levels of inhalable dust were 0.30 mg/m(3), range 0.005-3.3 mg/m(3). The proxies for average 8-h TWAs of respirable dust were 0.045 mg/m(3). Significant and consistent positive relations were found between several exposure metrics (PM 10, total and inhalable dust) and CRP, SAA and fibrinogen taken post-shift, suggesting a dose-effect relationship. This study supports a relationship between occupational particle exposure and established inflammatory markers, which may indicate an increased risk of cardiovascular disease.
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72.
  • Westberg, Håkan, 1949-, et al. (författare)
  • Mortality Among Hardmetal Production Workers : The Swedish Cohort
  • 2017
  • Ingår i: Journal of Occupational and Environmental Medicine. - Philadelphia, PA, USA : Lippincott Williams & Wilkins. - 1076-2752 .- 1536-5948. ; 59:12, s. e263-e274
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The mortality pattern was determined in a cohort of 16,999 white and blue-collar workers in the Swedish hardmetal industry, particularly for cobalt exposure and lung cancer.METHODS: The mortality follow-up analysis in the Swedish Mortality register covered the period from 1952 to 2012. The exposure measures were ever/never exposed, duration of exposure, cumulative, and mean cobalt concentrations.RESULTS: The mortality of all causes was significantly increased, highly associated with the short-term employed workers. A negative exposure-response was found for lung cancer and duration of exposure. An exposure-response was determined for cumulative and mean cobalt exposures analyzed by quartiles, but not for exposure classes. Internal comparison analysis using proportional hazard showed no exposure-response.CONCLUSIONS: The cohort lung cancer mortality showed no correlation to cobalt, nickel, or tungsten exposure.
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73.
  • Westberg, Håkan, 1949-, et al. (författare)
  • Mortality Among Hardmetal Production Workers : Swedish Measurement Data and Exposure Assessment
  • 2017
  • Ingår i: Journal of Occupational and Environmental Medicine. - Philadelphia, PA, USA : Lippincott Williams & Wilkins. - 1076-2752 .- 1536-5948. ; 59:12, s. e327-e341
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Mortality pattern was determined in a cohort of 16,999 white and blue-collar workers in the Swedish hardmetal industry. Exposure assessment for cobalt is presented.METHODS: A historical database (1970 to 2012) of personal and area measurements of cobalt, tungsten, and nickel in the Swedish hardmetal industry was created. Log linear and exponential modeling of cobalt concentrations based on time period, job, and site was performed, and cumulative and mean exposures were calculated.RESULTS: Some 37% of the personal cobalt measurements exceeded 0.02 mg/m, mostly for powder production, pressing, and shaping. The log linear regression showed statistical differences (P < 0.05) between sites, time periods, and jobs. Some 1.6% of the cobalt cumulative exposures for blue-collar workers exceeded 0.4 mg/m years.CONCLUSION: Low levels of cumulative and mean exposures were determined.
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74.
  • Westerdahl, Elisabeth, 1964-, et al. (författare)
  • Deep breathing exercises performed 2 months following cardiac surgery : a randomized controlled trial
  • 2014
  • Ingår i: Journal of cardiopulmonary rehabilitation and prevention. - : Lippincott Williams & Wilkins. - 1932-7501 .- 1932-751X. ; 34:1, s. 34-42
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: Postoperative breathing exercises are recommended to cardiac surgery patients. Instructions concerning how long patients should continue exercises after discharge vary, and the significance of treatment needs to be determined. Our aim was to assess the effects of home-based deep breathing exercises performed with a positive expiratory pressure device for 2 months following cardiac surgery.METHODS: The study design was a prospective, single-blinded, parallel-group, randomized trial. Patients performing breathing exercises 2 months after cardiac surgery (n = 159) were compared with a control group (n = 154) performing no breathing exercises after discharge. The intervention consisted of 30 slow deep breaths performed with a positive expiratory pressure device (10-15 cm H2O), 5 times a day, during the first 2 months after surgery. The outcomes were lung function measurements, oxygen saturation, thoracic excursion mobility, subjective perception of breathing and pain, patient-perceived quality of recovery (40-Item Quality of Recovery score), health-related quality of life (36-Item Short Form Health Survey), and self-reported respiratory tract infection/pneumonia and antibiotic treatment.RESULTS: Two months postoperatively, the patients had significantly reduced lung function, with a mean decrease in forced expiratory volume in 1 second to 93 ± 12% (P< .001) of preoperative values. Oxygenation had returned to preoperative values, and 5 of 8 aspects in the 36-Item Short Form Health Survey were improved compared with preoperative values (P< .01). There were no significant differences between the groups in any of the measured outcomes.CONCLUSION: No significant differences in lung function, subjective perceptions, or quality of life were found between patients performing home-based deep breathing exercises and control patients 2 months after cardiac surgery.
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75.
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77.
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78.
  • Westerlund, Jessica, 1983-, et al. (författare)
  • Occupational Exposure to Trichloramine and Endotoxins : Adverse Health Effects Among Personnel in Adventure and Rehabilitation Swimming Pool Facilities
  • 2022
  • Ingår i: Journal of Occupational and Environmental Medicine. - : Lippincott Williams & Wilkins. - 1076-2752 .- 1536-5948. ; 64:5, s. 361-369
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To study occupational exposure to trichloramine and endotoxins in air at adventure and rehabilitation swimming pool facilities from an adverse health effects perspective.METHODS: Air concentrations of trichloramine and endotoxins were measured in five adventure and 10 rehabilitation facilities. Respiratory and ocular symptoms were self-reported, and spirometry and fraction of exhaled nitric oxide (FENO) were measured.RESULTS: Compared to rehabilitation facilities, the mean trichloramine concentrations in the adventure facilities were higher, both personal (80 μg/m3 (n = 41) vs 19 μg/m3 (n = 21)) and stationary (183 μg/m3 (n = 51) vs 23 μg/m3 (n = 32)), with higher frequency of ocular and respiratory symptoms. Low stationary endotoxin levels (<0.64 to 25 EU/m3) were found, compared to the reference value (90 EU/m3).CONCLUSIONS: Higher trichloramine concentrations in air and more ocular and respiratory symptoms in adventure facilities call for adequate occupational exposure limits.
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79.
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80.
  • Westerlund, Jessica, 1983-, et al. (författare)
  • Occupational exposure to trichloramine and trihalomethanes : adverse health effects among personnel in habilitation and rehabilitation swimming pools
  • 2019
  • Ingår i: Journal of Occupational and Environmental Hygiene. - : Taylor & Francis. - 1545-9624 .- 1545-9632. ; 16:1, s. 78-88
  • Tidskriftsartikel (refereegranskat)abstract
    • Personnel in swimming pool facilities typically experience ocular, nasal, and respiratory symptoms due to water chlorination and consequent exposure to disinfection by-products in the air. The aim of the study was to investigate exposure to trichloramine and trihalomethanes (chloroform, bromodichloromethane, dibromochloromethane, and bromoform) from the perspective of adverse health effects on the personnel at Swedish habilitation and rehabilitation swimming pools. The study included ten habilitation and rehabilitation swimming pool facilities in nine Swedish cities. The study population comprised 24 exposed swimming pool workers and 50 unexposed office workers. Personal and stationary measurements of trichloramine and trihalomethanes in air were performed at all the facilities. Questionnaires were distributed to exposed workers and referents. Spirometry, fraction of exhaled nitric oxide (FENO) and peak expiratory flow (PEF) were measured. Personal and stationary measurements yielded trichloramine levels of 1-76 µg/m3 (average: 19 µg/m3) and 1-140 µg/m3 (average: 23 µg/m3), respectively. A slightly higher, but not significant, prevalence of reported eye- and throat-related symptoms occurred among the exposed workers than among the referents. A significantly increased risk of at least one ocular symptom was attributed to trichloramine exposure above the median (20 µg/m3). Lung function (FVC and FEV1) was in the normal range according to the Swedish reference materials, and no significant change in lung function before and after shift could be established between the groups. Average FENO values were in the normal range in both groups, but the difference in the values between the exposed workers and referents showed a significant increase after shift. Hourly registered PEF values during the day of the investigation did not show any unusual individual variability. In conclusion, the increased risk of developing at least one ocular symptom at personal trichloramine concentrations over 20 µg/m3 combined with an increase in the difference in FENO during the work shift of the exposed workers should not be neglected as an increased risk of respiratory inflammation in the habilitation and rehabilitation swimming pool environment.
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