Abstract:
BACKGROUND:Correct identification of wayside signal colors is critical for safe operation of railway equipment. However, evaluating color discrimination using just a screening test may not be occupationally relevant. METHODS:A lantern test (CNLAN) was designed to provide a functional assessment of color discrimination for the rail industry. It was validated against a simulated field trial. 81 individuals with normal color vision and 74 individuals with congenital red-green defects participated. Color vision was classified using the Nagel Anomaloscope. RESULTS:Using a criterion based on the worst-normal performance, 97% of the individuals with a color vision defect failed both the CNLAN and simulation trial. This value is slightly lower than the 100% who failed both the Ishihara test and simulation. However, the Ishihara test also failed 3.7% of the color-normals who passed both the simulation and lantern, whereas by definition none of the color-normals failed the lantern. CONCLUSIONS:This lantern test provides a reasonable functional assessment of one's ability to identify rail signal colors; especially when a strict failing criterion is applied to screening tests.
journal_name
Am J Ind Medjournal_title
American journal of industrial medicineauthors
Hovis JK,Oliphant Ddoi
10.1002/1097-0274(200012)38:6<681::aid-ajim8>3.0.csubject
Has Abstractpub_date
2000-12-01 00:00:00pages
681-96issue
6eissn
0271-3586issn
1097-0274pii
10.1002/1097-0274(200012)38:6<681::AID-AJIM8>3.0.Cjournal_volume
38pub_type
杂志文章abstract::To confirm the relationship between exposure to coal tar pitch volatiles and bladder cancer among primary aluminum production workers, we carried out a case-control study among blue-collar workers who had worked more than 1 year between 1950-1979 in a major plant using mostly the Soderberg process in the Province of Q...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700270303
更新日期:1995-03-01 00:00:00
abstract::The mortality profile of female nurses and teachers in British Columbia (BC) was examined using age-standardized proportional mortality ratios (PMRs) calculated for the period 1950-1984. Lowered overall mortality among nurses was seen for degenerative heart disease and for cerebrovascular accidents. Significantly elev...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700260111
更新日期:1994-07-01 00:00:00
abstract::We conducted a comparative study of pulmonary dysfunction among workers who were exposed to silica, asbestos, or coalmine dust. The results showed that all three groups of dust-exposed workers, even those without radiographic signs of pneumoconiosis, had decreased spirometric parameters and diffusing capacity (DLco) i...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199705)31:5<495::aid-ajim2
更新日期:1997-05-01 00:00:00
abstract::Several studies have indicated an increased risk for cancer of the urinary bladder among hairdressers. In a Danish linkage between census data and cancer register data both male and female hairdressers have an elevated risk for bladder cancer. The risk for lung cancer is close to unity, indicating that occupational fa...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700170206
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:The Oak Ridge, Tennessee Y-12 plant has operated as a nuclear materials fabrication plant since the 1940s. Given the work environment, and prior findings that lung cancer mortality was elevated among white male Y-12 workers relative to US white males, we investigated whether lung cancer mortality was associa...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.20254
更新日期:2006-02-01 00:00:00
abstract:BACKGROUND:Because of reported associations of psychosocial factors and computer related musculoskeletal symptoms, we investigated the effects of a workplace psychosocial factor, reward, in the presence of over-commitment, on trapezius muscle activity and shoulder, head, neck, and torso postures during computer use. M...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22192
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND:Investigations of breast cancer among men may provide clues for environmental and occupational risk factors that may be difficult to study in women, because of confounding or effect modification from reproductive female characteristics. The objective was to estimate occupation-specific risks of male breast c...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/1097-0274(200103)39:3<276::aid-ajim1015>3.
更新日期:2001-03-01 00:00:00
abstract::In adults, lead toxicity is most commonly caused by occupation in a lead industry. Whereas lead toxicity has been described in workers who are involved in bridge rehabilitation, as of this date there has been no systematic evaluation published regarding the conditions responsible for lead toxicity in ironworkers. This...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199711)32:5<540::aid-ajim1
更新日期:1997-11-01 00:00:00
abstract::The relationship between various occupational exposures and brain cancer was investigated in a case-control study using mortality data from 202 males who died in East Texas from gliomas in 1969-1978 and 238 male controls randomly selected from all deaths in East Texas in 1969-1978. Using the occupational classificatio...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700130603
更新日期:1988-01-01 00:00:00
abstract::Highway maintenance workers (HMWs) have been exposed to a broad range of potentially toxic substances, including diesel fuels and exhaust, asphalts and tars, herbicides, gasoline, polynuclear aromatic hydrocarbons, benzene, and lead. The number of current and former state, county, and municipal HMWs in the United Stat...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700150507
更新日期:1989-01-01 00:00:00
abstract::Since direct measures of individual exposure seldom exist for the entire period of an occupational mortality study, retrospective exposure estimates are necessary. This is often done in a subjective manner involving a consensus of opinion from a panel of epidemiologists and industrial hygienists. An alternative method...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700250607
更新日期:1994-06-01 00:00:00
abstract::In the course of a health screening for construction carpenters, 127 subjects underwent blood lead testing, administration of detailed questionnaires, and in vivo measurement of bone lead levels with a 109Cd K-X-ray fluorescence (K-XRF) instrument. The mean age of subjects was 48.5 (SD = 9.8) years. Blood lead levels ...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700260211
更新日期:1994-08-01 00:00:00
abstract:OBJECTIVE:Work automation is increasing worldwide, and the probability of job automation has been associated with workers' adverse health outcomes. This study aimed to examine the association of occupation-level automation probability with work stress and workers' health. METHODS:We used data from a national survey of...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.23210
更新日期:2021-02-01 00:00:00
abstract::In order to estimate rates and identify risk factors for assaults on employees of a state psychiatric hospital, we examined workers' compensation claims, hospital-recorded incident reports, and data collected in a survey of ward staff. Results revealed 13.8 workers' compensation claims due to assault per 100 employees...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199701)31:1<92::aid-ajim14
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:A medical screening program began in 1986 for sheet metal workers exposed to asbestos, primarily while working alongside insulators applying spray-on asbestos materials, a practice banned in 1973. Exposure continues during maintenance, renovation, and repair. METHODS:Radiographic abnormalities among 26 397 ...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22998
更新日期:2019-07-01 00:00:00
abstract::Lifetime industrial and occupational histories of women with a medically-confirmed diagnosis of infertility (n = 281) were compared to a group of postpartum women (n = 216) for risks of infertility. Controlling for age of first pregnancy or self-report of infertility, date of outcome, cigarette use, and employment in ...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199704)31:4<445::aid-ajim1
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND:Knowledge on intrapulmonary lymph nodes (IPLNs) is still limited. Progress in imaging techniques has enabled easier, more frequent visualization of IPLNs so that a more comprehensive understanding of these nodes is necessary. METHODS:Microscopic slides of lung tissue from 2,337 dust-exposed South African mi...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.20436
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:Concern regarding functioning and effectiveness of joint health and safety committees (JHSCs) in Ontario hospitals was raised following the Severe Acute Respiratory Syndrome outbreak in 2003. A subsequent literature review revealed a lack of studies focused within the healthcare sector. METHODS:A tool to me...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22703
更新日期:2017-04-01 00:00:00
abstract:INTRODUCTION:Noise exposure has long been an occupational health concern and has been an important area of focus of the Occupational Safety and Health Administration (OSHA) since its founding. Nevertheless, it remains unclear what effects OSHA's noise standards have had on employer efforts to reduce risks. Consequently...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.23116
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Deaths due to occupational disease and injury place a heavy burden on society in terms of economic costs and human suffering. METHODS:We estimate the annual deaths due to selected diseases for which an occupational association is reasonably well established and quantifiable, by calculation of attributable f...
journal_title:American journal of industrial medicine
pub_type: 杂志文章,评审
doi:10.1002/ajim.10216
更新日期:2003-05-01 00:00:00
abstract:INTRODUCTION:Live-in formal caregivers spend consecutive days in patients' homes, raising questions about their ability to secure adequate sleep while on duty. Few studies have examined sleeping conditions and outcomes for this growing workforce. METHODS:We collected weeklong sleep logs and interview data from 32 Fili...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22647
更新日期:2016-12-01 00:00:00
abstract:BACKGROUND:Radiographic shadows of coal workers' pneumoconiosis (CWP) are commonly described as predominantly in the upper lung zones. METHODS:We evaluated the lung distribution of small opacities on surveillance chest radiographs (CXRs) taken between 1981 and 2010 among 2,467 underground US coal miners. All had evide...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.22049
更新日期:2012-09-01 00:00:00
abstract::To study genotoxic effects of exposure to low levels of benzene, single-strand breaks (SSB) in DNA of leukocytes and urinary levels of the oxidative DNA adduct 8-hydroxydeoxyguanosine (8OHdG) were determined in 33 men occupationally exposed to benzene from gasoline and in 33 controls. The average exposure to benzene o...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0274(199609)30:3<317::AID-AJIM1
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:Total paper dust exposure has been associated with respiratory problems among workers in the soft tissue paper industry. However, a comprehensive job exposure matrix (JEM) has not been developed for application to this industry. Our study was intended to address this need and to support further studies of mo...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.23090
更新日期:2020-04-01 00:00:00
abstract::The relationship between the time-weighted average intensity of exposure to toluene and o-cresol concentration in shift-end urine was investigated in nearly 500 factory workers of both sexes in China, together with a similar number of nonexposed control subjects. Toluene concentration (25 ppm as geometric mean and 550...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/ajim.4700250509
更新日期:1994-05-01 00:00:00
abstract::This report describes the reanalysis of a cross-sectional study of asthma in a large cohort of autoworkers with exposure to metalworking fluids (MWF). There is strong evidence from case reports, clinical studies, and medical surveillance data that exposure to MWF can cause asthma, yet no association was found in the o...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199706)31:6<671::aid-ajim1
更新日期:1997-06-01 00:00:00
abstract:BACKGROUND:Farmers have been previously reported to have higher rates of depression and suicide compared to other occupations. Comparisons of depressive symptoms and risk factors for states should increase understanding of depression in farmers. METHODS:Representative samples of 385 Iowa and 470 Colorado male principa...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(200004)37:4<382::aid-ajim8
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:The risk of breast cancer was investigated in a large dynamic population-based cohort of all 1.1 million economically active women in Norway with potential exposure to 50 Hz magnetic fields at the censuses of 1960, 1970, and 1980. METHODS:The follow-up period for the cohort was 1961-1992. For each woman, da...
journal_title:American journal of industrial medicine
pub_type: 杂志文章
doi:10.1002/(sici)1097-0274(199907)36:1<147::aid-ajim2
更新日期:1999-07-01 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: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