Psychiatry Unit, Department of Health Sciences, University Magna Graecia of Catanzaro, Italy.
Psychiatry Unit, Department of Health Sciences, University Magna Graecia of Catanzaro, Italy - Department of Clinical and Experimental Medicine, University of Messina, Italy.
Riv Psichiatr. 2023 Jul-Aug;58(4):167-174. doi: 10.1708/4064.40479.
The Shared Decision Making Questionnaire-Physician Version (SDM-Q-Doc) is the main tool assessing SDM relationship between patient and physician using the clinician viewpoint. It is reliable in all medical fields, and the validation of its Italian version was still missing. Our aim was to validate the Italian version of the SDM-Q-Doc in a clinical sample of patients suffering from severe mental illness.
We approached 369 patients affected by major psychiatric disorders (including schizophrenia spectrum disorders, affective disorders and eating disorders) in a real-world outpatient clinical setting. We run the Confirmatory Factor Analysis (CFA) to test the SDM-Q-Doc structure. We calculated the correlations between the SDM-Q-Doc and the Observing Patient Involvement (OPTION) scale, used as comparing test, and McDonald ω coefficient to measure convergent validity and internal consistency respectively.
We reached a response rate of 93.2% (344 final participants). The CFA showed a very good fit compared of the Italian version of SDM-Q-Doc (χ2/df=3.2, CFI=.99, TLI=.99, RMSEA=.08, SRMR=.04). We found several correlations between the SDM-Q-Doc and OPTION scale supporting a robust SDM-Q-Doc construct validity, while internal consistency of the scale was McDonald ω coefficient .92. Further, inter-item correlations ranged from .390 to .703, with a mean of .556.
This study confirms the suitability of the Italian version of SDM-Q-Doc, with good reliability and soundness even when compared to other languages validated versions and to OPTION scale. SDM-Q-Doc represents an easy-to-use physician-centered measure to assess patients' involvement in medical decision-making, well performing in the Italian-speaking population.
共享决策问卷-医师版（SDM-Q-Doc）是评估医患之间共享决策关系的主要工具，采用临床医生的观点。它在所有医学领域都是可靠的，但其意大利语版本的验证仍然缺失。我们的目的是在患有严重精神疾病的患者的临床样本中验证 SDM-Q-Doc 的意大利语版本。
我们在真实的门诊临床环境中接触了 369 名患有主要精神障碍（包括精神分裂症谱系障碍、情感障碍和饮食障碍）的患者。我们进行了验证性因素分析（CFA）来测试 SDM-Q-Doc 的结构。我们计算了 SDM-Q-Doc 与用作比较测试的观察患者参与度量表（OPTION）之间的相关性，并分别使用 McDonald ω 系数测量收敛效度和内部一致性。
我们达到了 93.2%的回复率（344 名最终参与者）。与 SDM-Q-Doc 的意大利语版本相比，CFA 显示出非常好的拟合度（χ2/df=3.2，CFI=.99，TLI=.99，RMSEA=.08，SRMR=.04）。我们发现 SDM-Q-Doc 与 OPTION 量表之间存在多种相关性，支持 SDM-Q-Doc 具有强大的结构有效性，而该量表的内部一致性为 McDonald ω 系数.92。此外，各项目之间的相关性范围为.390 至.703，平均值为.556。
这项研究证实了 SDM-Q-Doc 的意大利语版本的适用性，具有良好的可靠性和稳健性，即使与其他语言验证版本和 OPTION 量表相比也是如此。SDM-Q-Doc 是一种易于使用的以医生为中心的衡量标准，用于评估患者在医疗决策中的参与度，在讲意大利语的人群中表现良好。
