ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

A study was undertaken to determine whether exposure to chloroprene increases the risk of lung cancer. Data were obtained from historical prospective mortality studies of two cohorts, one consisting of 270 men first exposed between 1931 and 1948, and the other of 1,576 men first exposed between 1942 and 1957. The number of lung cancer deaths in each cohort (three in the first and 16 in the second) were about the same as expected. Among maintenance mechanics in the second cohort, there were eight lung cancer cases (four living and four dead). A crude morbidity analysis suggested that this group may have had an excess incidence of lung cancer. However, the absence of excess lung cancer mortality in other high exposure occupational groups indicates that chloroprene exposure does not increase the risk of lung cancer.

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

The mortality of white male farm laborers and farm operators in California for the years 1959 to 1961 was examined. Cause-specific mortality rates were calculated in order to identify diseases which might be of occupational importance. The mortality rate from respiratory diseases in the farm laborer groups (employees) was triple the rate in the farm management group (employers or self-employed individuals). Accidental deaths were also increased in the farm laborer group. Hazards of the agricultural industry which could contribute to accidents and respiratory disease were reviewed.

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

Workers at two continental European enzyme detergent plants were examined to determine respiratory symptomatology, pulmonary function abnormalities and skin reactivity to four enzymes through use of a standardized questionnaire, flow-volume curves and provocative acetylcholine, single breath carbon monoxide, and prick tests. In both plants, the frequency of bronchitis was similar but the frequency of asthmatic or rhinopharyngitic symptoms was different. Symptomatology was more frequent in female detergent workers than among the clerical staff but no difference among men in different jobs was noted. Very few spirometric abnormalities were observed but bronchial hyper activity was more frequent in packaging and warehouse workers. No correlation between DLco/AV and place of work or skin reactivity was found. Skin reactivity (about 10% in both plants) and duration of employment were not related to symptomatology nor functional abnormalities.

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

Normal standards for pulmonary function in nonwhite populations are not presently available to occupational health workers. The present study examined differences in %FVC, FVC, FEV1/FVC, FEF 200–1200 and FEF 25–75% among whites, blacks, and American Indians.The sample consisted of 4209 job applicants to a textile company in southeastern United States. Multiple regrèssion and analyses of covariance were employed to control differences in age, height, weight, and smoking status.Blacks were significantly lower in five of the six comparisons but higher in FEV1/FVC,%. The pulmonary function measures of Indians fell generally between those of whites and blacks. Differences were observed between blacks and whites of both sexes regarding the effects of cigarette smoking. The need for race specific standards was confirmed and the question of using smokers in the acquisition of normative data was raised.

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID

摘要:

Work performance with impervious clothing and full-face respirator was investigated during maximal and submaximal (40–60%) bicycle ergometer efforts. Such levels may be dictated by the requirements of emergency decontamination tasks while most studies have been concerned with lower levels of activity. five different exercise protocols were administered. Heart rate (HR), oxygen consumption (Vo2), skin (Ts) and rectal (Tr) temperatures were monitored. The impervious suits resulted in decreased work performance, aerobic metabolism, and tolerance time. Stress indices of HR and mean Ts were found to be correlated with these differences. The study is being expanded for the purpose of establishing safe physiological guidelines for work tolerances at higher energy levels in impermeable suits.

ISSN:0096-1736    

出版商:OVID    

年代:1978

数据来源: OVID