ABSTRACT
OBJECTIVE: To explore the current situation of job burnout, sleep quality and working ability and the association among them in oil workers. METHODS: A total of 2 086 oil workers from six oil field companies in a city of Xinjiang Uygur Autonomous Region were selected as the study subjects using a typical sampling method. The job burnout level, sleep quality and working ability were measured respectively by the Maslach Burnout Inventory-General Survey, Pittsburgh Sleep Quality Index and Work Ability Index Questionnaire. RESULTS: The average score of job burnout in the study subjects was(48.6±11.0), the median and the 25 th, 75 th percentile of sleep quality and working ability scores were 6.0(5.0, 8.0) and 39.0(36.0, 42.0) respectively. There was a negative correlation between job burnout and working ability, or sleep quality and working ability [spearman correlation coefficient(r_S) were-0.28 and-0.21, all P<0.01]. There was a positive correlation between job burnout and sleep quality(r_S=0.19, P<0.01). The structural equation model results showed that both job burnout and sleep quality had a direct effect on working ability of oil workers [normalized path coefficient(β) were-0.29 and-0.27, respectively, all P<0.01]. Job burnout could indirectly affect working ability through reducing sleep quality(β=-0.12, P<0.01). CONCLUSION: The higher the degree of job burnout and the poorer the sleep quality, the lower their working ability in oil workers. Oil workers with a higher degree of job burnout can lead to poorer sleep quality, which in turn leads to a decline in their working ability.
ABSTRACT
OBJECTIVE: To investigate the current status of job burnout and working capability in miners of a copper-nickel mine of Xinjiang Municipality and explore the relationship between miners′ job burnout and working capability.METHODS: A total of 1 254 miners in a copper-nickel mine were selected as study subjects by stratified cluster sampling method. The Chinese Maslach Burnout Inventory and the Work Ability Index Questionnaire were used to investigate their job burnout and working capability.RESULTS: The total score of male miners′ job burnout was higher than that of female miners(P<0.05). The total score of high school educated miners′ job burnout was higher than that of junior middle school and below, junior college, undergraduate and above education groups(P<0.05). The total score of smelting miners′ job burnout was higher than that of mining and ore dressing miners(P<0.05). College degree group, unmarried group, intermediate professional title or above group, monthly income of 4 000-yuan group and mineral processing unit group had higher working capability(P<0.05). Multiple linear regression analysis showed that education level, type of jobs and job burnout level independently affect the miners′ working capability(P<0.01). The miners′ working capability decreased with decreasing education level and the increasing job burnout level(P<0.01). The working capability of ore dressing miners was higher than that of mining and smelting miners(P<0.05). CONCLUSION: The working capability of copper-nickel miners is negatively correlated with their job burnout. Reducing job burnout can improve the working capability of miners.