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. 2022 Oct 28;10(11):2157.
doi: 10.3390/healthcare10112157.

The Cost-Effectiveness Analysis of Gamiguibi-Tang versus Hwangryunhaedok-Tang for Patients with Insomnia Disorder Based on a Randomized Controlled Trial

Ji-Eun Lee  1 , In-Chul Jung  2 , So-Young Lee  1 , Jung-Hwa Lim  3 , Bo-Kyung Kim  3 , Eun Cho  1
Affiliations

The Cost-Effectiveness Analysis of Gamiguibi-Tang versus Hwangryunhaedok-Tang for Patients with Insomnia Disorder Based on a Randomized Controlled Trial

Ji-Eun Lee et al. Healthcare (Basel). .

Abstract

(1) Insomnia is associated with poor quality of life and loss of productivity, and is a significant economic burden on society. Gamiguibi-tang (GGBT) is the most frequently prescribed herbal medicine for insomnia treatment. Hwangryunhaedok-tang (HHT) is used as an insured herbal medicine for insomnia in the Korean National Health Insurance (NHI) system. This study aims to evaluate the cost-effectiveness of GGBT versus HHT in patients with insomnia disorders based on clinical trial data; (2) Methods: The EuroQol five-dimension scale (EQ-5D) was used to estimate quality-adjusted life-years (QALY). Direct and non-direct medical costs and lost productivity costs were estimated. The cost-effectiveness of GGBT was compared with HHT treatments over six weeks from a societal perspective; (3) Results: A total of 81 patients who underwent GGBT (n = 56) and HHT (n = 25) treatment completed the clinical trial. The EQ-5D score improved significantly more in the GGBT than in the HHT group (0.02 vs. −0.03, p < 0.05). The QALYs for six weeks were slightly greater in GGBT (0.0997) than in the HHT group (0.0987); however, the total costs incurred were approximately 9% less in GGBT ($934) than in the HHT group ($1029). GGBT was found to be a more economically dominant treatment option compared to HHT for treating insomnia; (4) Conclusions: Among herbal medicines, GGBT may be a cost-effective option for treating insomnia from a societal perspective in Korea.

Keywords: Gamiguibi-tang; cost-effectiveness analysis; herbal medicine; insomnia disorder; productivity loss.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The CONSORT flowchart of study process.
Figure 2
Figure 2
Comparison of 6 weeks per patient (1000 KRW (2021)) before and after initiating treatment. Abbreviations: GGBT, Gamiguibi-tang; HHT, Hwangryunhaedok-tang. 1 Productivity loss costs include costs for both work productivity loss and daily activity impairment. 2 Direct costs associated with traditional Korean treatment include direct medical and non-medical costs.
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