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- Mai, Xiaomei, 1969-, et al.
(författare)
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High body mass index, asthma and allergy in Swedish schoolchildren participating in the International Study of Asthma and Allergies in Childhood : phase II
- 2003
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Ingår i: Acta Paediatrica. - 0803-5253 .- 1651-2227. ; 92:10, s. 1144-1148
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To assess the relationship between high body mass index (BMI) and asthma and atopic manifestations in 12-y-old children.Methods: The relationship between high BMI and asthma symptoms was studied in 457 sixth-grade children, with (n= 161) and without (n= 296) current wheeze. High BMI was defined as ±75th percentile of gender-specific BMI reference values for Swedish children at 12 y of age; overweight as a subgroup of high BMI was defined as ±95th percentile. Children with a BMI >75th percentile served as controls. Questionnaires were used to assess asthmatic and allergic symptoms, and bronchial hyperresponsiveness was assessed by hypertonic saline provocation tests.Results: Current wheeze was associated with high BMI after adjustment for confounding factors (adjusted OR 1.7, 95% CI 1.0–2.5) and overweight had an even more pronounced effect (adjusted OR 1.9, 95% CI 1.0–3.6). In addition, asthma severity was associated with high BMI, as evaluated by the number of wheezing episodes during the previous 12 mo among the wheezing children (adjusted OR 2.0, 95% CI 1.0–4.0). There was also an association between high BMI and the presence of eczema in wheezing children (adjusted OR 2.2, 95% CI 1.0–4.6). However, high BMI was not significantly associated with hay fever, positive skin prick tests or bronchial hyperresponsiveness.Conclusion: The study confirms and extends a previously observed relationship between BMI and the presence of wheezing and asthma.
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- Hardell, Lennart, et al.
(författare)
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Agent orange in war medicine : An aftermath myth
- 1998
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Ingår i: International Journal of Health Services. - 0020-7314. ; 28:4, s. 715-724
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Forskningsöversikt (refereegranskat)abstract
- Since the late 1970s several epidemiological studies have appeared linking exposure to phenoxy herbicides or chlorophenols to some malignant tumors. Most of these compounds are contaminated with dioxins and dibenzofurans; for example, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a contaminant of 2,4,5-trichlorophenoxyacetic acid (2,4,5-T), a component of Agent Orange which was sprayed in Vietnam during the war. The results of some of the epidemiological studies on cancer risks associated with exposure to these compounds have been manipulated and misinterpreted, particularly by the Australian Royal Commission on the Use and Effects of Chemical Agents on Australian Personnel in Vietnam. Furthermore, a book on Australian war history entitled Medicine at War, commissioned by the Federal Government, reiterates several of these misinterpretations, despite available contrary evaluations from Australian and U.S. authorities. These remarkable and confusing circumstances in the scientific process are considered also in the light of the recent classification of TCDD as carcinogenic to humans, Group 1, by a Working Group at the International Agency for Research on Cancer in Lyon, France.
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| 8. |
- Hardell, Lennart, et al.
(författare)
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Epidemiological studies on cancer and exposure to dioxins and related compounds.
- 2003. - 2
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Ingår i: Dioxins and health. - Linköping : Linköpings universitet. - 0471433551 - 9780471433552 ; , s. 729-764
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Now in its third edition, Dioxins and Healthis the most respected reference of its kind, presenting the latest scientific findings on dioxins, dibenzofurans, polychlorinated biphenyls and related compounds, and their impact on human health. The book fully examines the many toxicological effects—including immunological, neurological, developmental, dermatological, and cardiological—these chemicals have on health.This Third Editionhas been greatly expanded with the latest research findings on dioxins and related compounds. Moreover, it now includes coverage of other persistent organic pollutants (POPs) and endocrine disruptors, including:Brominated flame retardants, such as polybrominated diphenyl ethers and hexabromocyclododecanePerfluorinated chemicals such as perfluorooctanoic acid and perfluorooctanesulfonic acidOther endocrine disrupting chemicals similar to POPs such as bisphenol AReaders will also learn about the latest findings on the long-term impacts caused by the use of Agent Orange in Vietnam. Other chapters review the Seveso disaster in Italy and the Yusho and Yucheng rice oil poisoning incidents in Japan and Taiwan. In addition, there is a full chapter dedicated to the dioxin poisoning of former Ukraine President Victor Yushchenko.All the chapters in the book have been written by leading international experts. References at the end of each chapter guide readers to the primary literature in the field.Expertly organized in one volume, Dioxins and Health offers readers quick access to essential information about dioxins and related compounds written in clear, simple language that is accessible to not only scientists, clinicians and public health professionals, but also general readers.
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- Hellström, Lennart, 1945-, et al.
(författare)
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Using environmental concentrations of cadmium and lead to assess human exposure and close
- 2004
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Ingår i: Journal of Exposure Analysis And Environmental Epidemiology. - : Springer Science and Business Media LLC. - 1053-4245 .- 1476-5519. ; 14:5, s. 416-423
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: Using environmental concentrations and Geographic Information Systems (GIS) to model human exposure is an emerging tool in environmental epidemiology. To evaluate the usefulness of this, we investigated to what extent cadmium and lead concentrations in soil and moss could be used as potential determinants for cadmium and lead exposure for a population living near a battery plant. Methods: Cadmium in urine and blood and lead in blood, as well as food, smoking habits, places of residence, occupations and health, were determined for 512 individuals living near a closed down battery factory in Sweden. Cadmium and lead contents in moss were available through previous assessments by the Geological Survey of Sweden. Soil samples had been collected at various distances from the factory, and analyzed for cadmium and lead contents in 1990. Kriging technique in GIS was used to create areas with different metal concentrations based on these measurements. By linking individual address coordinates to mapped concentration levels, each study subject home address received a value of cadmium and lead in moss and soil. Results: We found a statistically significant association between lead in soil and lead in blood, for female subjects eating homegrown vegetables regularly. No significant association was found between cadmium in soil and cadmium in urine for either gender in the study population. No clear associations were found for either gender regarding lead and cadmium in moss and lead in blood or cadmium in urine or in blood. Conclusion: In general, environmental concentrations may not be useful surrogates for assessing human exposure to lead and cadmium, but concentrations of metals in soil around emitting point sources can be a complement for estimating the exposure in certain subgroups.
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