Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Meta-analysis of the effects of Lavender Aromatherapy on pain

라벤더향기요법이 통증에 미치는 효과에 대한 메타분석

  • Received : 2019.02.15
  • Accepted : 2019.05.03
  • Published : 2019.05.31
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Abstract

This study is a systematic review of randomized experimental and non-randomized studies on the effects of lavender scent therapy on pain and a meta-analysis to provide evidence-based data. The data included in the meta-analysis are 18 studies published from 2000 to 2018, with interventional subjects being surgical, maternal, arthritis and dialysis patients, and the types of interventions were massage, application, hot-pack, and taking medication. RESULTS: The effect size (Hedges' g) for pain was -0.16 [95% CI:-1.40: -0.72], which was statistically significant. The effect size according to intervention type was -1.36 [95% CI: -1.96, -0.77], local application -1.11 [95% CI:-1.57-0.66], inhalation -1.05 [95% CI:-1.54, -0.56 ], and massage -0.92 [95% CI:-1.62, -0.23], all of which were statistically significant. To explore the possible causes of heterogeneity ($I^2=88%$), meta-ANOVA was conducted with covariates of intervention type or study design, and the results revealed it was statistically insignificant (intervention type Q=0.25, df=3, p=.968, study design Q=0.22, df=1, p=.642).

본 연구는 라벤더 향기요법이 통증에 미치는 효과에 대한 무작위 실험연구 및 비무작위 실험연구를 체계적으로 고찰하고 메타 분석하여 근거기반 자료를 제공하기 위한 연구이다. 메타 분석에 포함된 자료는 2000년부터 2018년까지 발표된 18편의 연구로서 중재 대상자는 수술 환자, 산모, 관절염 환자, 투석 환자 등이며 중재 유형은 흡입법, 마사지, 도포, 온습포, 복용 등이다. 연구 결과 통증에 대한 효과크기(Hedges' g)는 - 1.06[95% CI:-1.40:-0.72]로 큰 효과크기로 나타났으며 통계적으로 유의하였다. 중재 유형에 따른 효과크기는 복용 -1.36[95% CI:-1.96, -0.77], 국소 도포 -1.11[95% CI:-1.57 -0.66], 흡입 -1.05[95% CI:-1.54, -0.56], 마사지 -0.92[95% CI:-1.62, -0.23]의 순으로 모두 큰 효과크기로 나타났으며 통계적으로 유의하였다. 그러나 통증의 효과크기에 대한 이질성($I^2=88%$, p<.01)이 커서, 중재 유형, 연구 설계를 조절변수로 하여 조절효과 분석인 메타 아노바를 시행하였으나 통계적으로 유의하지 않았다(중재 방법 Q=0.25, df=3, p=.968, 연구 설계 Q=0.22, df=1, p=.642).

Keywords

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Fig. 1. PRISMA flow diagram

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Fig. 2. Risk of bias summary

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Fig. 3. Forest plots of the effects of lavender aromatherapy on pain

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Fig. 4. Subgroup analysis for intervention method

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Fig. 5. Subgroup analysis for study design

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Fig. 6. Funnel plot of pain

Table 1. Descriptive summary of included studies

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