Abstract:
BACKGROUND:Combustion-generated fine particulate matter (PM2.5) is associated with cardiovascular morbidity. Both traffic-related air pollution and residential wood combustion may be important, but few studies have compared their impacts. OBJECTIVES:To assess and compare effects of traffic-related and woodsmoke PM2.5 on endothelial function and systemic inflammation (C reactive protein, interleukin-6 and band cells) among healthy adults in Vancouver, British Columbia, Canada, using high efficiency particulate air (HEPA) filtration to introduce indoor PM2.5 exposure gradients. METHODS:We recruited 83 healthy adults from 44 homes in traffic-impacted or woodsmoke-impacted areas to participate in this randomised, single-blind cross-over intervention study. PM2.5 concentrations were measured during two consecutive 7-day periods, one with filtration and the other with 'placebo filtration'. Endothelial function and biomarkers of systematic inflammation were measured at the end of each 7-day period. RESULTS:HEPA filtration was associated with a 40% decrease in indoor PM2.5 concentrations. There was no relationship between PM2.5 exposure and endothelial function. There was evidence of an association between indoor PM2.5 and C reactive protein among those in traffic-impacted locations (42.1% increase in C reactive protein per IQR increase in indoor PM2.5, 95% CI 1.2% to 99.5%), but not among those in woodsmoke-impacted locations. There were no associations with interleukin-6 or band cells. CONCLUSIONS:Evidence of an association between C reactive protein and indoor PM2.5 among healthy adults in traffic-impacted areas is consistent with the hypothesis that traffic-related particles, even at relatively low concentrations, play an important role in the cardiovascular effects of the urban PM mixture. TRIAL REGISTRATION NUMBER:http://www.clinicaltrials.gov (NCT01570062).
journal_name
Occup Environ Medjournal_title
Occupational and environmental medicineauthors
Kajbafzadeh M,Brauer M,Karlen B,Carlsten C,van Eeden S,Allen RWdoi
10.1136/oemed-2014-102696subject
Has Abstractpub_date
2015-06-01 00:00:00pages
394-400issue
6eissn
1351-0711issn
1470-7926pii
oemed-2014-102696journal_volume
72pub_type
杂志文章,随机对照试验abstract:OBJECTIVES:To obtain knowledge on male reproductive toxicity of inorganic lead at current European exposure levels and to establish lowest adverse effect levels, if any. METHODS:A cross sectional survey of the semen of 503 men employed by 10 companies was conducted in the United Kingdom, Italy, and Belgium. The mean b...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/oem.59.4.234
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:Exposure to animals, their feeds, and by-products contribute to respiratory symptoms among farmers. AIMS:To investigate the role of animal exposures and wheeze, and to assess whether their impact differs among susceptible subgroups, including atopics, asthmatics, and smokers. METHODS:Using the Agricultural...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.60.8.e3
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVES:There is an ongoing debate regarding environmental health risks of exposures to dust and microbial agents from livestock farming in the Netherlands. The aims of the study were (1) to investigate associations between indicators of air pollution from livestock farms and asthma, allergic rhinitis and chronic ob...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oemed-2013-101485
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:Between 2001 and 2010, six research groups conducted coordinated multiyear, prospective studies of carpal tunnel syndrome (CTS) incidence in US workers from various industries and collected detailed subject-level exposure information with follow-up symptom, physical examination, electrophysiological measures...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oemed-2013-101365
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND:Workers on dredgers and lighters on rivers are potentially exposed to a variety of substances. AIMS:To determine the internal load of heavy metals and arsenic as well as levels of cytogenetic markers in workers exposed to river silt aerosols. METHODS:One hundred exposed workers were examined up to eight ti...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2003.007146
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVES:Standardised mortality ratios (SMRs) play an important role in the epidemiological literature, particularly in evaluations of occupational hazards. While some authors have argued that comparisons of SMRs should be avoided, many investigators find such analyses appealing particularly when data are sparse. For...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oemed-2012-100792
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVES:To investigate the relation between pulmonary function and occupational exposure in aluminium pot operators. METHODS:2795 observations were obtained in 630 workers over six years of follow up. An autoregressive method of analysis was used. RESULTS:After adjustment for FEV1 in the three previous years, the ...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.54.1.27
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:There is limited research concerning how small companies in particular, respond to health and safety messages. AIMS:To understand individuals' knowledge and beliefs about chemical risks and to compare these with those of experts. METHODS:The use of chromic acid in particular, and also other chemicals assoc...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.59.10.689
更新日期:2002-10-01 00:00:00
abstract:AIMS:To determine the risk of all cause mortality, cause specific mortality, and incident cancer in meatworkers. METHODS:In a retrospective cohort study, a list of members of a meatworkers union in Australia was matched with the national death and cancer registries. Standardised mortality ratios (SMR) and standardised...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.60.9.e4
更新日期:2003-09-01 00:00:00
abstract:OBJECTIVES:There is growing evidence of an association between low-dose external γ-radiation and circulatory system diseases (CSDs), yet sparse data exist about an association with chronic internal uranium exposure and the role of non-radiation risk factors. We conducted a nested case-control study of French AREVA NC P...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oemed-2017-104575
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVE:A prospective cohort study was designed to clarify the relations between occupational exposure to carbon disulphide (CS2) and its effects on arteriosclerosis in workers in 11 Japanese rayon manufacturing factories. This report is a cross sectional baseline observation in the first study year. METHODS:Study s...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.55.7.468
更新日期:1998-07-01 00:00:00
abstract:OBJECTIVES:To measure the levels of exposure to nitrogen trichloride (NCl3) in the atmosphere of indoor swimming pools and to examine how they relate to irritant and chronic respiratory symptoms, indices of pulmonary function, and bronchial hyperresponsiveness to methacholine in lifeguards working in the pools. METHOD...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.55.4.258
更新日期:1998-04-01 00:00:00
abstract:OBJECTIVES:To estimate the prevalence and incidence of upper extremity musculoskeletal pain (UEMP) and related disability among office workers in Costa Rica, Nicaragua and Spain. METHODS:Data from the multinational Cultural and Psychosocial Influences on Disability (CUPID) study on 947 (93%) participants at baseline w...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oemed-2015-103327
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVES:Self-reported exposure to vapours, gas, dust or fumes (VGDF) has been widely used as an occupational exposure metric in epidemiological studies of chronic lung diseases. Our objective was to characterise the performance of VGDF for repeatability, systematic misclassification, and sensitivity and specificity ...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2008.040022
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVE:To investigate the carcinogenicity of styrene by reanalysing data from a previous international cohort study of workers in the reinforced plastics industry. METHODS:Mortality from cancers of prior interest was analysed with more detailed consideration of exposure-response relations and an updated classificat...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/oemed-2018-105131
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:To investigate associations between cancer incidence and exposure to coal tar pitch volatiles, asbestos, pot emissions (fluorides, sulphur dioxide), heat stress, and magnetic fields in workers from a Norwegian aluminium smelter that operated from 1914 to 1975. METHODS:Cancer incidence between 1953 and 1991 w...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.52.4.250
更新日期:1995-04-01 00:00:00
abstract:AIMS:To correlate the prevalence of respiratory tract symptoms and diseases with dust and fibre exposure in the soft tissue industry in Germany. METHODS:Ambient monitoring was performed for inhalable, respirable dust and fibres in seven soft tissue producing factories. In 441 workers (72 controls, 90 moderate, 279 hig...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.59.12.830
更新日期:2002-12-01 00:00:00
abstract:OBJECTIVES:Because of the rarity of small bowel adenocarcinoma (SBA), little is known about the aetiology of this disease. This study aimed to identify occupational clustering of cases SBA as a systematic approach to new hypotheses on the aetiology of this disease. METHODS:A European multicentre case-control study was...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章,多中心研究
doi:10.1136/oem.57.11.760
更新日期:2000-11-01 00:00:00
abstract:OBJECTIVES:To determine whether employees in the automobile industry in Michigan are at elevated risk of urinary bladder cancer. METHODS:The authors conducted a population-based case-control study including 418 cases and 571 controls. History of employment within the automobile industry was coded according to the US C...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2008.041616
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVES:(1) To investigate the association between temperature and work-related injuries and (2) to identify groups of workers at high risk of work-related injuries in hot environments in Adelaide, South Australia. METHODS:Workers' compensation claims in Adelaide, South Australia for 2001-2010 were used. The relati...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oemed-2013-101584
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVES:Few studies have assessed the effects of policies aimed to reduce traffic-related air pollution. The aims of this study were to evaluate the impact, in terms of air quality and health effects, of two low-emission zones established in Rome in the period 2001-2005 and to assess the impact by socioeconomic posi...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2010.063750
更新日期:2012-02-01 00:00:00
abstract:OBJECTIVES:To estimate the annual rates of self reported occupational asthma in different occupational groups in Sweden. METHODS:All claims of occupational asthma 1990-2 in the Swedish register of reported occupational diseases were classified according to occupation. The number of people employed in each occupational...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.53.11.757
更新日期:1996-11-01 00:00:00
abstract:OBJECTIVES:For regulatory risk assessment under REACH a tiered approach is proposed in which the first tier models should provide a conservative exposure estimate that can discriminate between scenarios which are of concern and those which are not. The Stoffenmanager is mentioned as a first tier approach in the REACH g...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2008.045500
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVES:To determine the prevalence and risk factors for symptoms related to gloves, and the relation between symptoms and immunological evidence of type 1 hypersensitivity to latex in a United Kingdom health care setting. METHODS:A cross sectional survey was carried out among 773 employees at a British hospital. A...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.56.12.833
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:To investigate the differences between measurements of personal exposure to particulate air pollution and static area measurements in a group of people working close to traffic and to determine whether such differences might obscure any threshold for health effects in epidemiological studies. METHODS:Persona...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.52.12.790
更新日期:1995-12-01 00:00:00
abstract:AIMS:To test whether (1) physically demanding work is less frequent for older than younger employees, and whether (2) the association of physically demanding work with decline of physical functioning is stronger for older employees than their younger counterparts. The gender differences in these associations were exami...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2004.014035
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVES:To describe workers with low back symptoms, to identify risk factors and to assess the occupational consequences separately in men and women. METHODS:A descriptive study was conducted between 1 October 1996 and 31 December 1996 in a sample of workers selected at random from all types of small companies in t...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.56.10.696
更新日期:1999-10-01 00:00:00
abstract:OBJECTIVE:To carry out a comprehensive field investigation to evaluate various conventional and recently developed biomarkers for exposure to low concentrations of benzene. METHODS:Analyses were carried out on environmental air, unmetabolised benzene in blood and urine, urinary trans, transmuconic acid, and three majo...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.53.5.328
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVES:To describe the relation with age of risk of reported injury after a fall among women at work in two countries, the United Kingdom and Sweden, with particular emphasis on fractures, and to interpret these data. METHODS:Rates of accidents compiled under the national reporting regulations of each country duri...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.54.11.785
更新日期:1997-11-01 00:00:00
abstract:OBJECTIVES:To evaluate whether hourly changes in fine particle (PM(2.5), diameter<2.5 microm) exposure or outdoor particle concentrations are associated with rapid ischaemic responses. METHODS:41 non-smoking elderly people with coronary heart disease were followed up with biweekly clinic visits in Helsinki, Finland. T...
journal_title:Occupational and environmental medicine
pub_type: 杂志文章
doi:10.1136/oem.2007.037531
更新日期:2008-11-01 00:00:00