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Original Article
Development and Evaluation of Shared Medical Decision-Making Scale for End-of-Life Patients in Korea
Kae Hwa Jo
Journal of Korean Academy of Nursing 2012;42(4):453-465.
DOI: https://doi.org/10.4040/jkan.2012.42.4.453
Published online: August 31, 2012

Catholic University of Daegu, College of Nursing, Daegu, Korea.

Address reprint requests to: Jo, Kae Hwa. College of Nursing, Catholic University of Daegu, 3056-6 Daemyung 4-dong, Nam-gu, Daegu 705-718, Korea. Tel: +82-53-650-4825, Fax: +82-53-650-4392, jokw@cu.ac.kr
• Received: January 11, 2012   • Accepted: July 9, 2012

© 2012 Korean Society of Nursing Science

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  • Purpose
    The study was done to develop a shared decision-making scale for end-of-life patients in Korea.
  • Methods
    The process included construction of a conceptual framework, generation of initial items, verification of content validity, selection of secondary items, preliminary study, and extraction of final items. The participants were 388 adults who lived in one of 3 Korean metropolitan cities: Seoul, Daegu, or Busan. Item analysis, factor analysis, criterion related validity, and internal consistency were used to analyze the data. Data collection was done from July to October 2011.
  • Results
    Thirty-four items were selected for the final scale, and categorized into 7 factors explaining 61.9% of the total variance. The factors were labeled as sharing information (9 items), constructing system (7 items), explanation as a duty (5 items), autonomy (4 items), capturing time (3 items), participation of family (3 items), and human respect (3 items). The scores for the scale were significantly correlated among shared decision-making scale, terminating life support scale, and dignified dying scale. Cronbach's alpha coefficient for the 34 items was .94.
  • Conclusion
    The above findings indicate that the shared decision-making scale has a good validity and reliability when used for end-of-life patients in Korea.
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Figure 1
Conceptual framework of SDM for the patient in end-of-life.
jkan-42-453-g001.jpg
Table 1
Item Analysis (N=388)
jkan-42-453-i001.jpg

Item deleted by item analysis.

Table 2
Factor Analysis and Reliability (N=388)
jkan-42-453-i002.jpg

Kaiser-Meyer-Olkin (KMO)=.94; Bartlett's test of sphericity: χ2=10,388.58; p<.001; Cronbach's α=.94.

Table 3
Correlation among Shared Decision Making Scale, Terminating Life Support Scale, and Dignified Dying Scale (N=388)
jkan-42-453-i003.jpg

SDM=Shared decision making.

Figure & Data

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        Development and Evaluation of Shared Medical Decision-Making Scale for End-of-Life Patients in Korea
        J Korean Acad Nurs. 2012;42(4):453-465.   Published online August 31, 2012
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      Development and Evaluation of Shared Medical Decision-Making Scale for End-of-Life Patients in Korea
      Image
      Figure 1 Conceptual framework of SDM for the patient in end-of-life.
      Development and Evaluation of Shared Medical Decision-Making Scale for End-of-Life Patients in Korea

      Item Analysis (N=388)

      Item deleted by item analysis.

      Factor Analysis and Reliability (N=388)

      Kaiser-Meyer-Olkin (KMO)=.94; Bartlett's test of sphericity: χ2=10,388.58; p<.001; Cronbach's α=.94.

      Correlation among Shared Decision Making Scale, Terminating Life Support Scale, and Dignified Dying Scale (N=388)

      SDM=Shared decision making.

      Table 1 Item Analysis (N=388)

      Item deleted by item analysis.

      Table 2 Factor Analysis and Reliability (N=388)

      Kaiser-Meyer-Olkin (KMO)=.94; Bartlett's test of sphericity: χ2=10,388.58; p<.001; Cronbach's α=.94.

      Table 3 Correlation among Shared Decision Making Scale, Terminating Life Support Scale, and Dignified Dying Scale (N=388)

      SDM=Shared decision making.


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