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KMID : 0856920080110040188
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Journal of Hospice and Palliative Care
2008 Volume.11 No. 4 p.188 ~ p.195
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Meta-Analysis about Effect of Aromatherapy on Stress
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Kim Kyung-Duck
Suh Soon-Rim
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Abstract
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Purpose: The purpose of this study was to analyze the effects of aromatherapy on stress using meta-analysis.
Methods: Meta-analysis was done with 21 published studies, and data were analyzed with the SAS 9.1 program.
Results: Fifty eight effect size was estimated with data from 21 published studies. Overall mean effect size (ES), and mean effect size of dependence variables according to the type of intervention and subject and according to the total amount of time spent in aromatherapy were estimated. Overall mean effect size of the effects of aromatherapy was .593, and the subjective stress (.983) was most effective in the physiological faculty, followed by mean effect size of cortisol (.648) and pulse (.40). On the other hand, mean effect size of systolic blood pressure (.490) was moderate, and that of diastolic blood pressure (.401) was not large. Mean effect size of elderly (.706) cancer patients was considerable(.337). There were significant differences depending on the subjects. With regards to the types of aromatherapy, the effect size of aroma massage combined with inhalation therapy was .590, and there were no significant differences between the intervention methods. With regards to the time of intervention, minutes spent in aromatherapy was .730, and there were no significant differences between the times of intervention. The relationship between the effect size and intervention frequency was r=.349 and showed significant difference.
Conclusion: This result suggests that aromatherapy is an effective intervention to reduce stress for subjects. Nursing intervention protocol by using aromatherapy should be developed and applied in clinical and community settings. Further studies on the effects of aromatherapy on stress should be done by using meta-analysis.
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KEYWORD
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Aromatherapy, Stress, Meta-Analysis
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