الگوی رهبری خدمتگزار در مدیریت بیمارستان: مطالعه موردی بیمارستان فوق تخصصی ولیعصر (عج) ناجا

Background: in systems such as police force that any person is consideredas an asset of the organization, noise pollution can lead to the behavioralabnormalities such as aggression that may cause occupational burnout.therefore this study was conducted to compare aggression between musiciansand non-musicians groups of naja.materials and methods: the present study was a cross-comparative researchand tests were applied on all members of music group (n=42) of najauniversity. to access the control group, we selected 42 subjects and matchedthem with experimental group. to measure aggression we used buss-perryaggression questionnaire and for collecting demographic information weused a questionnaire designed by authors. data processing was performedusing student t-test and pearson correlation coefficient by spss 20 softwarepackage.results: the results of the comparison between two groups indicated that thescore of overall aggression was significantly higher in music group than otherone. the similar difference was also achieved for physical and verbal, anger,and hostility subscales of questionnaire (p=0.001). moreover, we found thesignificant positive relation between job history and aggression with pearsoncorrelation (p=0.011). it means that the more year people work in music group,the more aggression they have.conclusion: findings obtained from this study indicated the importance ofhigh noise exposure effect on behavioral changes such as aggression amongmembers of music group. the authorities should adopt and rigorouslyimplement approaches to reduce and control exposure to this stressfulenvironmental factor for the mentioned group. allocation of suitable space forpractice and providing acoustic space, proper scheduling for work and rest andpsychological interventions to reduce aggression and increase compatibilityin workplace are the most important approaches to achieve this goal.