Prospective Cohort Study On The Relationship Between Occupational Stress And Sleep Quality Of Petroleum Workers

Objective: To understand the occupational stress, personality and sleep quality of p-etroleum workers, and to analyze its correlation strength of causal links. Methods:This study investigated petroleum workers in a Petroleum Administration Bureau who have been investigated in 2013.Use cohort follow-up study method to survey it’s occupational stress, personality characteristics and sleep quality. Results: 1. 740 p-articipants at baseline and after one year follow-up it’s last 719,cohort retention rat e was 97.16%.2. Occupational stress:Tension baseline queue occupation status of dif-ferent demographic characteristics and occupational characteristics except no statisti-cally significant difference among different ethnic groups(P > 0.05), the other gro-ups have obvious differences(P<0.05).There are differences on PSQ degree and P RQ degree in different groups of petroleum labor crowd(P<0.05).3. Personality conditions: Comparing the baseline cohort EPQ score with the national norm, the diff-erence have statistically significant(P<0.01).4. Sleep quality:The baseline cohort pe-troleum worker’s PSQI score value was(6.48±3.43) points.sleep disorders number is 227,the incidence of sleep disorder is 31.57%.The occurrence of differences in d-ifferent degree and shift work prevalence of sleep disorders have statistically signif-icant(P<0.05).5. The affect factors of sleep quality:The task conflict(RR=1.482,95%CI=1.037~2.118),work environment(RR=1.666,95%CI=1.037~2.118) and physical s-train(RR=1.624, 95%CI=1.122~2.349) may increase the risk of sleep disorders;thelevel of occupational stress high-high risk group of sleep disorder was higher than that of low-low group(RR=3.141, 95%CI=1.500~6.577);the level of personal strains high-high group(RR=3.161,95%CI=1.717~5.820), high-middle group(RR=2.841,95%CI=1.371~5.886),middle-high group(RR=2.412,95%CI=1.156~3.064) and middle-mi-ddle group of sleep disorder was higher than that of low-low group;N score high on neuroticism may increase the risk of sleep disorder(RR=1.142, 95%CI=1.093~1.193), and extroversion(E) are the protective factors of sleep disorders(RR=0.937,95%CI=0.896~0.980).shift condition(RR=1.579, 95%CI=1.036~2.407) may increase t-he risk of sleep disorders, interaction and occupational stress level shift will also i-ncrease the risk of sleep disorders(RR=1.090, 95%CI=1.030~1.153). Conclusion:O-ccupational stress,shift work and N are the risk factors of sleep disorders,E is the protective factor of sleep disorders.In order to improve petroleum workers sleep quality should improve their occupational stress and shift work situation.