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      Reliability and validity of revised and short form versions of diabetes diet-related quality of life scale

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          Abstract

          Objective

          To develop both a revised version of the Diabetes Diet-Related Quality of Life (DDRQOL-R) scale that can be applied to patients with nephropathy and a short form of the DDRQOL-R.

          Method

          A total of 184 outpatients with type 2 diabetes were asked to complete the self-administered DDRQOL-R scale to confirm its psychometric properties. A short-form version was developed, based on two methods: the result of the developed DDRQOL-R scale and consensus using the Delphi method among medical experts.

          Results

          Correlations were generally strong between the DDRQOL-R factors extracted by factor analysis and each SF-36 subscale. Cronbach’s α coefficients were at least 0.7, and intraclass correlation coefficients were between 0.59 and 0.78. The nine items that showed high factor loadings were also assessed as important by the medical experts and were selected for the short form of the scale. The reliability and validity of the short form were found to be similar to those of the DDRQOL-R scale.

          Discussion

          Our findings indicate that the DDRQOL-R scale and its short form have acceptable reliability and validity. The revised version is highly versatile, and the short form can be conveniently administered.

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          Author and article information

          Contributors
          +81-284-62-0605 , sato.eiko@v90.ashitech.ac.jp
          Journal
          Diabetol Int
          Diabetol Int
          Diabetology international
          Springer Japan (Tokyo )
          2190-1678
          2190-1686
          4 November 2016
          June 2017
          : 8
          : 2
          : 181-192
          Affiliations
          [1 ] ISNI 0000 0001 0684 4288, GRID grid.443333.0, Department of Nursing, , Ashikaga Institute of Technology, ; 268-1 Omae-cho, Ashikaga, Tochigi Japan
          [2 ] ISNI 0000 0001 1033 6139, GRID grid.268441.d, Department of Nursing, Graduate School of Medicine, , Yokohama City University, ; Yokohama, Japan
          [3 ] ISNI 0000 0001 2369 4728, GRID grid.20515.33, Faculty of Medicine, , University of Tsukuba, ; Tsukuba, Japan
          [4 ] ISNI 0000 0004 0372 2033, GRID grid.258799.8, Human Health Sciences, Graduate School of Medicine, , Kyoto University, ; Kyoto, Japan
          [5 ]Sawa Internal Medicine and Diabetes Clinic, Fujisawa, Japan
          [6 ] ISNI 0000 0001 2248 6943, GRID grid.69566.3a, Department of Physical Medicine and Rehabilitation, Graduate School of Medicine, , Tohoku University, ; Sendai, Japan
          [7 ] ISNI 0000 0001 2151 536X, GRID grid.26999.3d, Former Department of Adult Nursing, Graduate School of Medicine, , The University of Tokyo, ; Tokyo, Japan
          Article
          PMC6224953 PMC6224953 6224953 291
          10.1007/s13340-016-0291-x
          6224953
          30603320
          67884c0c-9f42-43fe-bafd-539057c4c9a4
          © The Japan Diabetes Society 2016
          History
          : 13 April 2016
          : 16 October 2016
          Funding
          Funded by: Grant-in-Aid for Scientific Research
          Award ID: 19390555
          Award Recipient :
          Categories
          Original Article
          Custom metadata
          © The Japan Diabetes Society 2017

          Diet therapy,Diabetes,Scale development,Diet-related quality of life

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