Objective To explore the effects of effort-reward imbalance on sleep quality of new recruits in an area of Xinjiang.
Methods A multi-stage stratified cluster sampling survey was conducted among 625 new recruits stationed in Urumqi using the Chinese version of Effort-Reward Imbalance(ERI) questionnaire and the Chinese version of Pittsburgh Sleep Quality Index(PSQI) questionnaire. Totally 586 valid questionnaires were received. The subjects were divided into high and low groups according to the average scores of three ERI sub-scales. The association between sleep quality and occupational stress were analyzed by t test and multivariate logistic regression analysis.
Results The mean PSQI score of the recruits was 5.00& #177;2.84, of which 170 subjects(29.01%) scored ≥ 7. Regarding selected demographic variables, the PSQI score of the smoking group was higher than that of the non-smoking group(5.29& #177;3.01, 4.72& #177;2.64, P<0.05), the non-student group higher than the student group(5.42& #177;2.94, 4.42& #177;2.59, P<0.05). No difference in the PSQI score was found in the subjects categorized by only-child, pre-enlistment residence, educational level, and body mass index(P>0.05). The PSQI scores of three groups with high scores in effort, reward, and over-commitment subscale were higher than those of groups with low scores(P<0.01), and the PSQI score of the ERI ratio ≥1.0 group was also higher than that of the ERI ratio < 1.0 group(P<0.01). In the logistic regression model, non-students before being enlisted in the army, higher over-commitment sub-scale score, and ERI ≥1.0 were the risk factors of sleep quality, with OR(95% CI) of 1.370(1.110-1.690), 1.109(1.004-1.226), and 11.317(4.203-30.476), respectively.
Conclusion The sleep quality of the new recruits is not optimistic, and ERI could affect their sleep quality.
DownLoad: