Burnout, Professional ; Humans

Humans ; Occupational Diseases ; prevention & control ; Occupational Health ; Stress, Psychological ; prevention & control

Hazardous Substances ; Risk Assessment ; methods ; Workplace

Cardiovascular Diseases ; etiology ; Humans ; Psychology, Industrial

Carbon Disulfide ; analysis ; Occupational Exposure ; prevention & control ; Threshold Limit Values ; Workplace

Adult ; Female ; Humans ; Logistic Models ; Male ; Mental Health ; statistics & numerical data ; Transients and Migrants ; psychology ; Young Adult

Humans ; Musculoskeletal Diseases ; epidemiology ; prevention & control ; Occupational Diseases ; epidemiology ; prevention & control

OBJECTIVETo explore the relationship between occupational stress and serum glycosylated hemoglobin A1c (HbA1c) level.

METHODSA cross-sectional epidemiological study was conducted in 115 dispatchers. The occupational stressors, personality, occupational strain and coping with stress were measured using Occupational Stress Instrument. Serum HbA1c levels were measured by stratigraphic analysis of cation exchange resin.

RESULTSSerum HbA1c level (6.63% ± 1.93%) in the shiftwork group was significantly higher than that (5.73% ± 1.57%) in the daily relay work group (P < 0.05). Spearman correlation analyses showed the positive correlation between type A behavior and serum HbA1c level (r = 0.221), the negative correlation between organizational commitment and serum HbA1c level (r = -0.218). Variance analyses revealed that serum HbA1c levels among high, middle and low job requirement groups and job control groups were significantly different (P < 0.05). There were significant differences of serum HbA1c levels among different type A behavior, internal control, susceptibility of stress and organizational commitment groups (P < 0.05). Stepwise regression analyses indicated that shiftwork affects obviously serum HbAlc level, internal control and job future were the predictors of serum HbA1c level (R2 = 0.082).

CONCLUSIONSerum HbA1c may be a potential biomarker in field investigation of the effects of occupational stress.

Adult ; Cross-Sectional Studies ; Glycated Hemoglobin A ; metabolism ; Humans ; Male ; Middle Aged ; Occupational Diseases ; blood ; Serum ; chemistry ; Stress, Psychological ; blood ; Surveys and Questionnaires ; Young Adult

OBJECTIVETo explore tentatively the impact of occupational stress on sleep disorders.

METHODSninety three male freight train dispatchers participated in this study (response rate 80.87%). Sleep disorders, occupational stressors, personalities, and occupational strain response were measured with questionnaires.

RESULTSWorkers with high psychological demands, job stressors,depressive symptoms,physical symptoms, daily life stress, work locus of control had higher sleep disorders scores than their counterparts (P < 0.01 or P < 0.05), workers with high job control had lower sleep disorders scores than their counterparts (P < 0.05). Sleep disorders were positively related to psychological demands, job stressors, depressive symptoms, physical symptoms, daily life stress, state-anxiety, strait-anxiety, and susceptibility to stress (P < 0.01 or P < 0.05), but negatively to job control and mental health (P < 0.05). Low job control, depressive symptoms, daily life stress and meaningless job were risk factors of sleep disorders.

CONCLUSIONThe sleep disorders are associated with some aspects of occupational stress among male freight train dispatchers.

Adult ; Humans ; Male ; Middle Aged ; Occupations ; Railroads ; Sleep Wake Disorders ; epidemiology ; Stress, Psychological ; Surveys and Questionnaires

Air Pollutants, Occupational ; analysis ; Evaluation Studies as Topic ; Facility Design and Construction ; Humans ; Occupational Diseases ; prevention & control ; Occupational Exposure ; analysis ; prevention & control ; Quality Control