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Sökning: WFRF:(Bryngelsson Ing Liss) > Medicin och hälsovetenskap

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1.
  • Andersson, Eva, 1955, et al. (författare)
  • Cohort mortality study of Swedish pulp and paper mill workers-nonmalignant diseases
  • 2007
  • Ingår i: Scandinavian Journal of Work, Environment and Health. - : Scandinavian Journal of Work, Environment and Health. - 0355-3140 .- 1795-990X. ; 33:6, s. 470-478
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives The aim of this study was to determine mortality among pulp and paper mill workers according to the main mill pulping process, department, and gender, particular reference being given to diseases of the circulatory and respiratory systems.Methods The cohort of 18 163 men and 2 291 women employed between 1939 and 1999 and with >1 year of employment was followed for mortality from 1952 to 2001 (acute myocardial infarction from 1969). Standardized mortality ratios (SMR) with 95% confidence intervals (95% CI) were estimated by comparing the observed number of deaths with the expected number for the entire Swedish population. Exposure was assessed from personnel files in the mills. Data from an exposure measurement database are also presented.Results There were 5898 deaths in the cohort. Total mortality had an SMR of 1.02 (95% CI 0.98–1.06) for the men in the sulfate mills and an SMR of 0.93 (95% CI 0.90–0.97) for the men in the sulfite mills. Mortality from acute myocardial infarction was increased among the men in both the sulfate and sulfite mills [SMR 1.22 (95% CI 1.12–1.32) and SMR 1.11 (95% CI 1.02–1.21), respectively] and by department in sulfate pulping (SMR 1.29, 95% CI 1.07–1.54), paper production (SMR 1.26, 95% CI 1.06–1.49), and maintenance (SMR 1.16, 95% CI 1.02–1.30). Mortality from cerebrovascular disease, diabetes mellitus, and nonmalignant respiratory diseases was not increased.Conclusions Death from acute myocardial infarction, but not cerebrovascular diseases, was increased in this cohort and was probably related to a combination of different occupational exposures (eg, dust, sulfur compounds, shift work, and noise).
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2.
  • 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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3.
  • Olsson, Daniel S, 1983, et al. (författare)
  • Incidence of malignant tumours in patients with a non-functioning pituitary adenoma.
  • 2017
  • Ingår i: Endocrine-Related Cancer. - : BioScientifica Ltd.. - 1351-0088 .- 1479-6821. ; 24:5, s. 227-235
  • Tidskriftsartikel (refereegranskat)abstract
    • Whether patients with non-functioning pituitary adenoma (NFPA) are at increased risk of developing malignant tumours has been sparsely studied and is a matter of debate. In this study, we have investigated the incidence of malignant tumours in a large and unselected group of patients with NFPA. The study was nationwide and included all patients diagnosed with NFPA between 1987 and 2011 (n = 2795) in Sweden, identified in the National Patient Register. Malignant tumours, occurring after the NFPA diagnosis, were identified in the Swedish Cancer Register between 1987 and 2014. Standardised incidence ratios (SIRs) for malignant tumours with 95% confidence intervals (CI) were calculated using the Swedish population as reference. In total, 448 malignant tumours were detected in 386 patients with NFPA, as compared to 368 expected malignancies in the general population (SIR 1.22 (95% CI 1.11-1.33)). The incidence of neoplasms of the brain was increased (SIR 5.83 (95% CI 4.03-8.14)). When analysing the total incidence of malignancies excluding neoplasms of the brain, the overall SIR was still increased (SIR 1.14 (95% CI 1.03-1.26)). The incidence of malignant neoplasm of skin other than malignant melanoma (SIR 1.99 (95% CI 1.55-2.52)) and malignant melanoma (SIR 1.62 (95% CI 1.04-2.38)) were increased, whereas the incidence of breast cancer (SIR 0.65 (95% CI 0.42-0.97)) was decreased. The incidence of other types of malignancies did not differ significantly from the expected incidence in the general population. In conclusion, patients with NFPA have an increased overall risk of developing malignancies. To what extent these findings are due to more frequent medical surveillance, genetic predisposition or endocrine changes, remains unknown.
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4.
  • Andersson, Eva, 1955, et al. (författare)
  • Cancer incidence among Swedish pulp and paper mill workers: a cohort study of sulphate and sulphite mills.
  • 2013
  • Ingår i: International archives of occupational and environmental health. - : Springer Science and Business Media LLC. - 1432-1246 .- 0340-0131. ; 86:5, s. 529-40
  • Tidskriftsartikel (refereegranskat)abstract
    • Associations between various malignancies and work in the pulp and paper industry have been reported but mostly in analyses of mortality rather than incidence. We aimed to study cancer incidence by main mill pulping process, department and gender in a Swedish cohort of pulp and paper mill workers.The cohort (18,113 males and 2,292 females, enrolled from 1939 to 1999 with >1year of employment) was followed up for cancer incidence from 1958 to 2001. Information on the workers' department and employment was obtained from the mills' personnel files, and standardized incidence ratios (SIRs) were calculated using the Swedish population as reference.Overall cancer incidence, in total 2,488 cases, was not increased by work in any department. However, risks of pleural mesothelioma were increased among males employed in sulphate pulping (SIR, 8.38; 95% CI, 3.37-17) and maintenance (SIR, 6.35; 95% CI, 3.47-11), with no corresponding increase of lung cancer. Testicular cancer risks were increased among males employed in sulphate pulping (SIR, 4.14; 95% CI, 1.99-7.61) and sulphite pulping (SIR, 2.59; 95% CI, 0.95-5.64). Female paper production workers showed increased risk of skin tumours other than malignant melanoma (SIR, 2.92; 95% CI, 1.18-6.02).Incidence of pleural mesothelioma was increased in the cohort, showing that asbestos exposure still has severe health consequences, and highlighting the exigency of strict asbestos regulations and elimination. Testicular cancer was increased among pulping department workers. Shift work and endocrine disruptors could be of interest in this context.
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5.
  • Andersson, Eva, 1955, et al. (författare)
  • Cancer mortality in a Swedish cohort of pulp and paper mill workers.
  • 2010
  • Ingår i: International archives of occupational and environmental health. - : Springer Science and Business Media LLC. - 1432-1246 .- 0340-0131. ; 83:2, s. 123-32
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To study cancer mortality among Swedish pulp and paper mill workers by main mill pulping process and department, and to present the Swedish part of an international exposure measurements database. METHODS: A cohort of 18,163 male and 2,290 female workers at four sulfate and four sulfite mills, enrolled from 1939 to 1999, was followed up for mortality during 1952-2001. Standardized mortality ratios (SMRs) relative to the general Swedish population were calculated. RESULTS: There were 1,340 malignant cases out of 5,898 deaths. Total cancer mortality was not increased in either sulfate or sulfite mill workers, or by gender. Lung cancer mortality was increased among female workers (SMR 1.70, 95% CI 1.04-2.63), especially in paper production, but not among male workers (SMR 0.91, 95% CI 0.79-1.04). Exposure to wood dust and sulfur dioxide frequently exceeded occupational exposure limits. CONCLUSIONS: Female paper production workers had an increased mortality from lung cancer.
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6.
  • Andersson, Lena, 1965-, et al. (författare)
  • Respiratory health and inflammatory markers : Exposure to respirable dust and quartz and chemical binders in Swedish iron foundries
  • 2019
  • Ingår i: PLOS ONE. - : PLOS. - 1932-6203. ; 14:11
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: To study the relationship between respirable dust, quartz and chemical binders in Swedish iron foundries and respiratory symptoms, lung function (as forced expiratory volume FEV1 and vital capacity FVC), fraction of exhaled nitric oxide (FENO) and levels of club cell secretory protein 16 (CC16) and CRP.METHODS: Personal sampling of respirable dust and quartz was performed for 85 subjects in three Swedish iron foundries. Full shift sampling and examination were performed on the second or third day of a working week after a work free weekend, with additional sampling on the fourth or fifth day. Logistic, linear and mixed model analyses were performed including, gender, age, smoking, infections, sampling day, body mass index (BMI) and chemical binders as covariates.RESULTS: The adjusted average respirable quartz and dust concentrations were 0.038 and 0.66 mg/m3, respectively. Statistically significant increases in levels of CC16 were associated with exposure to chemical binders (p = 0.05; p = 0.01) in the regression analysis of quartz and respirable dust, respectively. Non-significant exposure-responses were identified for cumulative quartz and the symptoms asthma and breathlessness. For cumulative chemical years, non-significant exposure-response were observed for all but two symptoms. FENO also exhibited a non significant exposure-response for both quartz and respirable dust. No exposure-response was determined for FEV1 or FVC, CRP and respirable dust and quartz.CONCLUSIONS: Our findings suggest that early markers of pulmonary effect, such as increased levels of CC16 and FENO, are more strongly associated with chemical binder exposure than respirable quartz and dust in foundry environments.
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7.
  • Hagström, Katja, 1975-, et al. (författare)
  • Exposure to wood dust, resin acids and volatile organic compounds during production of wood pellets
  • 2008
  • Ingår i: Journal of Occupational and Environmental Hygiene. - Philadelphia, PA : Taylor and Francis. - 1545-9624 .- 1545-9632. ; 5:5, s. 296-304
  • Tidskriftsartikel (refereegranskat)abstract
    • The main aim of this study was to investigate exposure to airborne substances that are potentially harmful to health during the production of wood pellets, including wood dust, monoterpenes, and resin acids, and as an indicator of diesel exhaust nitrogen dioxide. In addition, area measurements were taken to assess background exposure levels of these substances, volatile organic compounds (VOCs), and carbon monoxide. Measurements were taken at four wood pellet production plants from May 2004 to April 2005. Forty-four workers participated in the study, and a total of 68 personal measurements were taken to determine personal exposure to wood dust (inhalable and total dust), resin acids, monoterpenes, and nitrogen dioxide. In addition, 42 measurements of nitrogen dioxide and 71 measurements of total dust, resin acids, monoterpenes, VOCs, and carbon monoxide were taken to quantify their indoor area concentrations. Personal exposure levels to wood dust were high, and a third of the measured levels of inhalable dust exceeded the Swedish occupational exposure limit (OEL) of 2 mg/m3. Parallel measurements of inhalable and total dust indicated that the former were, on average, 3.2 times higher than the latter. The data indicate that workers at the plants are exposed to significant amounts of the resin acid 7-oxodehydroabietic acid in the air, an observation that has not been recorded previously at wood processing and handling plants. The study also found evidence of exposure to dehydroabietic acid, and exposure levels for resin acids approached 74% of the British OEL for colophony, set at 50 microg/m3. Personal exposure levels to monoterpenes and nitrogen dioxide were low. Area sampling measurements indicated that aldehydes and terpenes were the most abundant VOCs, suggesting that measuring personal exposure to aldehydes might be of interest. Carbon monoxide levels were under the detection limit in all area measurements. High wood dust exposure levels are likely to have implications for worker health; therefore, it is important to reduce exposure to wood dust in this industry.
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8.
  • Klasson, Maria, 1977-, et al. (författare)
  • Biological monitoring of dermal and air exposure to cobalt at a Swedish hard metal production plant : does dermal exposure contribute to uptake?
  • 2017
  • Ingår i: Contact Dermatitis. - : John Wiley & Sons. - 0105-1873 .- 1600-0536. ; 77:4, s. 201-207
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Occupational exposure to cobalt is well established in hard metal manufacture. Cobalt is known to cause contact allergy, asthma, hard metal lung disease, and lung cancer. The relationship between skin exposure and uptake determined in blood has not been extensively investigated.Objective: To examine whether skin and inhalable air exposure to cobalt contributes to uptake, determined as cobalt in blood, in a hard metal manufacturing factory.Methods: The amount of cobalt on the skin found with an acid wash technique, the air concentrations of inhalable cobalt and cobalt blood concentrations were determined and correlated in exposed workers.Results: We found a significant rank correlation for cobalt concentrations on the skin, in inhalable air, and in blood (0.376-0.498). Multiple linear regression showed significant regression coefficients for cobalt skin exposure and blood (B = 0.01, p < 0.05) and for inhalable cobalt in air and blood (B = 49.1, p < 0.001). According to our model based on data from the regression analyses, a twofold increase in skin exposure levels at different air concentrations caused a 3 - 14% increase in blood levels.Conclusions: Our data suggest that skin exposure to cobalt in the hard metal industry could affect the total uptake at the same order of magnitude as air exposure.
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9.
  • Löfstedt, Håkan, 1963-, et al. (författare)
  • Respiratory and Ocular Symptoms Among Employees at Swedish Indoor Swimming Pools
  • 2016
  • Ingår i: Journal of Occupational and Environmental Medicine. - : Lippincott Williams & Wilkins. - 1076-2752 .- 1536-5948. ; 58:12, s. 1190-1195
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: This study investigated trichloramine exposure and prevalence of respiratory and ocular symptoms among Swedish indoor swimming pool workers.Methods: Questionnaires were distributed to pool workers and referents. Lung function and fraction of exhaled nitric oxide (FeNO) were measured before and after work. Exposure to trichloramine and trihalomethanes was measured over work shifts.Results: The mean personal trichloramine exposure was 36g/m(3). Significantly more exposed workers reported ocular and nasal symptoms. There were significant differences between groups in FeNO change following work, with exposed showing increased FeNO, which grew when analyses included only nonsmokers.Conclusions: The findings indicate that indoor swimming pool environments may have irritating effects on mucous membranes. FeNO data also indicate an inflammatory effect on central airways, but the clinical relevance is unclear. Low trichloramine levels found in this study were not associated with health effects.
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10.
  • Olsson, Daniel S, 1983, et al. (författare)
  • Time trends of mortality in patients with non-functioning pituitary adenoma : a Swedish nationwide study
  • 2017
  • Ingår i: Pituitary. - : Springer-Verlag New York. - 1386-341X .- 1573-7403. ; 20:2, s. 218-224
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: Patients with non-functioning pituitary adenomas (NFPA), especially women, have increased mortality. The aim of this study was to investigate whether mortality in NFPA patients has changed during the last two decades.METHODS: This was a nationwide population-based study including 2795 patients (1502 men, 1293 women) diagnosed with NFPA between 1997 and 2011. Patients were identified and followed in Swedish National Health Registries. Standardized mortality ratios (SMRs) with 95 % confidence intervals were calculated for three time periods at first NFPA diagnosis using the general population as reference.RESULTS: Mean (±SD) age at NFPA diagnosis was 58.9 ± 16.8 years. Mean (range) follow-up time was 8.3 (0-18) years, resulting in 20,517 patient-years at risk. Surgical treatment and radiotherapy were used in 53 and 5 %, respectively. The prevalence of hypopituitarism was 64 % during the first time period of diagnosis and then declined gradually during the study period (P value for trend <0.0001). The use of pituitary surgery and radiotherapy remained stable. In women, mortality was increased for patients diagnosed between 1997 and 2006 but not for those diagnosed between 2007 and 2011. The SMR in men remained stable throughout the study and did not differ from the general population. During the last time period, 2007-2011, the SMR between men and women did not differ.CONCLUSIONS: While mortality in men with NFPA remains normal and stable during the last two decades, mortality in women has declined. Decreasing prevalence of pituitary insufficiency may be a plausible explanation for this positive development.
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