Abstract:
BACKGROUND:The SARS outbreak in 2003 has spawned a major controversy concerning protective performance facemasks for healthcare workers. This study reports a study on in-vivo protective performance of surgical masks and N95 respirators. METHODS:Typical surgical masks and N95 respirators used in Hong Kong hospitals were tested in comparison with those treated with nano-functional materials (called nano-masks) on various physical properties and in-vivo wear filtration efficiency, as well as usability test in hospitals for surgical masks. RESULTS:Tests on physical properties showed that N95 respirators had significantly lower air permeability and water vapor permeability than surgical masks. The in-vivo filtration tests illustrated that N95 respirators filtered out 97% of potassium chloride (KCl) solution, while surgical masks filtered out 95% of KCl solution. Nano-masks show stronger water repellency and antibacterial activities, but no difference in usability, comparing with normal N95 and surgical masks. CONCLUSIONS:Surgical masks can provide in-vivo filtration protection of 95% filtration efficiency. N95 respirators provide higher in-vivo filtration efficiency of 97% with significant reduction of air permeability and water vapor permeability. Compared to normal surgical masks/respirators, the nano-masks can provide additional protective functions in stopping capillary diffusion and antibacterial activities.
journal_name
Am J Ind Medjournal_title
American journal of industrial medicineauthors
Li Y,Wong T,Chung J,Guo YP,Hu JY,Guan YT,Yao L,Song QW,Newton Edoi
10.1002/ajim.20395subject
Has Abstractpub_date
2006-12-01 00:00:00pages
1056-65issue
12eissn
0271-3586issn
1097-0274journal_volume
49pub_type
杂志文章abstract:BACKGROUND:Work-related mortality is a relatively new concept which aims to widen occupational health and safety; to take into account not only recognized fatal occupational accidents and diseases but also other work-related deaths. Few countries in the world have a register for work-related diseases. METHODS:Estimate...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.20411
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:Use of worker's compensation (WC) as payer underestimates work-related (WR) injuries. We evaluated three methods to identify WR injuries: WC as payer, ICD-9-CM work-status codes E000.0/E000.1, and other ICD-9-CM external cause codes. METHODS:We identified injury-related emergency department visits from Nort...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22984
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Multiple comorbidities have been reported among rescue/recovery workers responding to the 9/11/2001 WTC disaster. In this study, we developed an index that quantifies the cumulative physiological burden of comorbidities and predicts life expectancy in this cohort. METHODS:A machine learning approach (gradie...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22786
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:The extent that cigarette smoking may confound the relationship between diesel exhaust exposure and lung cancer was assessed in a retrospective cohort study of 55,395 U.S. railroad workers followed from 1959 to 1976. METHODS:The relative risk (RR) of lung cancer due to diesel exhaust was indirectly adjusted...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/1097-0274(200010)38:4<399::aid-ajim5>3.0.c
更新日期:2000-10-01 00:00:00
abstract:BACKGROUND:Noise exposure in the sawmill industry is an area of concern. This study documents the level of noise exposure in nine sawmills in the province of Alberta, Canada. METHODS:Personal noise monitoring data were collected in nine Alberta sawmills, in winter and in summer (n = 213). Exposures were considered in ...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.10173
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:Work-related injuries in commercial fishing are of concern internationally. To better identify the causes of injury, this study coded occupational injuries by working processes in commercial fishing for fresh market fish. METHODS:A classification system of the work processes was developed by participation i...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.20163
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:Diesel exhaust is considered a probable human carcinogen by the International Agency for Research on Cancer (IARC). The epidemiologic evidence rests on studies of lung cancer among truck drivers, bus drivers, shipyard workers, and railroad workers. The general public is exposed to diesel exhaust in ambient a...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199809)34:3<220::aid-ajim3
更新日期:1998-09-01 00:00:00
abstract::Artificial intelligence (AI) is a broad transdisciplinary field with roots in logic, statistics, cognitive psychology, decision theory, neuroscience, linguistics, cybernetics, and computer engineering. The modern field of AI began at a small summer workshop at Dartmouth College in 1956. Since then, AI applications mad...
journal_title:American journal of industrial medicine
pub_type: 历史文章,杂志文章,评审
doi:10.1002/ajim.23037
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Thoroughbred horse farm workers self-report a high frequency of work-related injuries and pain. However, an analysis of Thoroughbred horse farm workers' compensation injury claims is absent from the literature, yet may benefit worker safety. METHODS:We analyzed workers' compensation insurance firm data cont...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.23159
更新日期:2020-10-01 00:00:00
abstract:BACKGROUND:Farmworkers who delay treatment after workplace injuries may increase injury severity and experience longer recovery times. To understand why farmworkers delay treatment we employed a mixed-methods analysis of 393 farmworker injury narratives from the National Agricultural Workers Survey (NAWS). METHODS:Fir...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22380
更新日期:2015-02-01 00:00:00
abstract::Respiratory health variables were studied cross-sectionally in 227 employees of a plastics molding facility where numerous complaints had been apparently associated with the use of azodicarbonamide foaming agent in injection molding. Pre- and postshift respiratory status measures and azodicarbonamide concentrations we...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700110109
更新日期:1987-01-01 00:00:00
abstract::Chest radiographs, taken at a 9-year interval for 1,261 U.S. coal miners, were read for pneumoconiosis side-by-side by six readers in a controlled trial. Incidence and progression of small, rounded opacities were consistent with levels predicted from dose-response curves developed by the British Pneumoconiosis Field R...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700060604
更新日期:1984-01-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to investigate the association between dynamic thiol/disulphide homeostasis and occupational exposure to volatile anesthetic gases in operating theater personnel. Decreased blood thiol levels and raised blood disulphide levels serve as biomarkers of oxidative stress. METHODS:We...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22764
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:The roles of age, length of service and job in various work-related injury types are unknown and deserve investigations among female workers. This study assessed their roles in the occurrence of injury. METHODS:Three-year prospective study of all 22,952 permanently employed women at the French national rail...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22259
更新日期:2014-02-01 00:00:00
abstract::A microcomputer system for on-lone analysis of saccadic and smooth-pursuit tracking eye movements is described. Results from a longitudinal study of lead workers and matched controls reveal a consistent decrease in saccade accuracy in the lead workers compared to the controls. Saccade peak velocity and latency and smo...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700010112
更新日期:1980-01-01 00:00:00
abstract::Occupational health studies of agricultural workers have generally excluded migrant and seasonal farmworkers, and this population experiences a high degree of health risk from agricultural exposures. A survey of dermatologic disorders among migrant and seasonal farmworkers will be used to illustrate this point. Data f...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700180317
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:A medical surveillance program of benzene-exposed workers has to be established in such a way as to observe early signs of benzene-induced cytopenia, pancytopenia, or leukemia. This study evaluates the utility of routine medical survey applied to benzene-exposed workers by analyzing the hematological, immuno...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.10296
更新日期:2003-11-01 00:00:00
abstract:BACKGROUND:Studies suggest metal and solvent exposure may damage hearing. This study evaluated the association between exposures classified as high for metals, solvents, and noise on permanent threshold shift (PTS) development. METHODS:A total of 1,546 personnel at an industrial shipyard were divided into five exposur...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22690
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:Many authorities are concerned about the rising use and the potential overuse of opioid pain medications. A study of opioid prevalence and dosage in Ohio's workers' compensation (WC) system was conducted, with comparisons made to opioid use in other WC and non-WC settings. METHODS:Systematic literature revi...
journal_title:American journal of industrial medicine
pub_type: 杂志文章,评审
doi:10.1002/ajim.21021
更新日期:2012-04-01 00:00:00
abstract:BACKGROUND:Several case-control studies have found an association between chronic beryllium disease (CBD) and HLA-DPB1 gene variants. However, the relationship between HLA-DPB1 and beryllium sensitization, and whether the presence of one or two HLA-DPB1(Glu69) alleles is differentially associated with CBD and beryllium...
journal_title:American journal of industrial medicine
pub_type: 杂志文章,多中心研究
doi:10.1002/ajim.20045
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:The aim of this study was to compile nationally representative statistics describing inpatient hospital care for patients with work-related injuries and illnesses covered under workers' compensation (WC) insurance in the United States. METHODS:Three years of data (1997-1999) from the Nationwide Inpatient Sa...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.10273
更新日期:2003-10-01 00:00:00
abstract:BACKGROUND:Hotel room cleaners have physically demanding jobs that place them at high risk for shoulder pain. Psychosocial work factors may also play a role in shoulder pain, but their independent role has not been studied in this group. METHODS:Seventy-four percent (941 of 1,276) of hotel room cleaners from five Las ...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.20832
更新日期:2010-07-01 00:00:00
abstract::A case of baker's asthma with a fatal outcome is described. Clinical features and the circumstances of death are recounted. While the case documents the potential severity of occupational asthma, it also illustrates the difficulties of managing occupational asthma in the absence of good social security. ...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700260608
更新日期:1994-12-01 00:00:00
abstract::Using occupational data for more than 500 patients with cancers of the biliary tract (CBT) diagnosed between 1980 and 1984 in Shanghai, and employment information from the 1982 census for the Shanghai population, the associations between CBT and occupational categories were examined by standardized incidence ratios (S...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0274(199607)30:1<36::AID-AJIM6>
更新日期:1996-07-01 00:00:00
abstract::Injury is the leading cause of death in adolescence, with the highest rates for 15- to 19-year-olds, an age span also marked, for many, by entry into the workforce. Occupational injuries affecting youth occur in the context of the larger problem of injury affecting children and adolescents. An understanding of the bro...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700240307
更新日期:1993-09-01 00:00:00
abstract::An analysis of reported birth record variables by parental occupation suggests that certain birth outcomes may identify toxic or carcinogenic occupational exposures of the parents. Fathers coded to an asbestos and insulation worker rubric sired fewer plural births, and more stillbirths than expected. A number of other...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700160214
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:The healthy survivor effect is a selection process whereby healthy workers are selectively retained in the work force while unhealthy workers are removed. Understanding this phenomenon is integral to the accurate assessment of exposure effects in occupational cohorts. To date, scarce information has been pub...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199904)35:4<343::aid-ajim4
更新日期:1999-04-01 00:00:00
abstract::In order to determine the possible actual exposure to benzene in the shoe industry from industrially used solvents, glues, and paints containing benzene as a nondeclared constituent, phenol in urine and benzene in blood, as indices of internal exposure to benzene, were measured in workers (N = 33). Since toluene, in c...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700120507
更新日期:1987-01-01 00:00:00
abstract::In 1982, White et al published an assessment of quantitative leukemia risk associated with lifetime occupational exposure to benzene. At about the same time, IARC (1982) published estimates of quantitative cancer risk associated with industrial chemicals. Benzene was one of the two chemicals selected by IARC for its r...
journal_title:American journal of industrial medicine
pub_type: 杂志文章,评审
doi:10.1002/ajim.4700070507
更新日期:1985-01-01 00:00:00
abstract::Quantitative evaluation of worker exposure to silica in nine Standard Industrial Classification (SIC) codes was conducted, using data derived from OSHA compliance inspections, in order to assess the silica exposure problem in the U.S. The nine SICs studied were those in which OSHA inspections were concentrated. They i...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700100403
更新日期:1986-01-01 00:00:00