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共同意思決定(Shared decision making, SDM)に関する文献

2025.05.06 04:05

EBPのStep4の”エビデンスの適用”では、対象者との共同意思決定(Shared decision making, SDM)が不可欠です.SDMについては、EBMが提唱された1990年代と同時期には、すでに様々な文献が発表されています.このページでは、SDMの基本となる古典的な文献を中心にまとめます.


SDMの要素やモデル等の説明に関する文献


Ref. Hamann J, et al. Shared decision making in psychiatry. Acta PsychiatrScand. 2003;107(6):403-9. PMID: 12752015. https://doi.org/10.1034/j.1600-0447.2003.00130.x


Ref. Whitney, SN, et al. A typology of shared decision making, informed consent, and simple consent. Annals of internal medicine, 2004;140(1):54–59. https://doi.org/10.7326/0003-4819-140-1-200401060-00012

Figure. Decision plane showing the distribution of simple consent, informed consent, and shared decision making within 4 types of medical decisions


We suggest as key characteristics of shared decision-making (1) that at least two participants—physician and patient be involved; (2) that both parties share information; (3) that both parties take steps to build a consensus about the preferred treatment; and (4) that an agreement is reached on the treatment to implement. 

Ref. Charles, C, et al. Shared decision-making in the medical encounter: what does it mean? (or it takes at least two to tango). Social science & medicine. 1997;44(5):681–692. PMID: 9032835https://doi.org/10.1016/s0277-9536(96)00221-3


Steps in the SDM process (Simon D, et al. 2006)

Table 1.

1. Disclosure that a decision needs to be made
2. Formulation of equality of partners
3. Equipoise statement
4. Informing on the options’ benefits and risks
5. Investigation of patient's understanding and expectations
6. Identification of preferences
7. Negotiation
8. Shared decision
9. Arrangement of follow-up

Ref. Simon D, et al. Development and first validation of the shared decision making questionnaire (SDM-Q). Patient Educ Couns. 2006;63(3):319-27. PMID:16872793.   https://doi.org/10.1016/j.pec.2006.04.012


A shared decision making model (Elwyn, et al. 2012)

Figure 1. A shared decision making model

Choice Talk, Option Talk, Decision Talk→Decisions

Ref. Elwyn G, et al. Shared decision making: a model for clinical practice. J Gen Intern Med. 2012;27(10):1361-7. PMID: 22618581https://doi.org/10.1007/s11606-012-2077-6


 


日本語の資料など

https://decisionaid.jp/


https://www.ckdsdm.jp/sdm/sdm.html