Validation of the Comprehensive International Classification of Functioning, Disability and Health (ICF) Core Set for Diabetes Mellitus in patients with diabetic nephropathy.
BACKGROUND
Diabetic nephropathy (DMN) is the most common cause of end-stage renal disease. Progression of DMN leads to impairment of physical activity, restriction of daily activities, and diminished social participation. Therefore, the precise assessment of the physical and psychosocial problems of DMN patients is important. The objective of this study was to validate the Comprehensive International Classification of Functioning, Disability and Health Core Set for Diabetes Mellitus (ICF-CS for DM) from the perspective of DMN patients.


METHODS
A total of 176 DMN outpatients were interviewed using the ICF-CS for DM. Content and construct validity were evaluated. Patients were divided into 2 groups: DMN patients without hemodialysis (HD) (non-HD group) and DMN patients undergoing HD (HD group). Content validity was evaluated based on the frequency of patients who had a problem in each category. For construct validity, the patients were divided into two groups based on DM duration and hemoglobin A1C levels.


RESULTS
Content validity evaluation revealed 58 categories reported as problem categories: 39 categories in the non-HD group and 50 categories in the HD group. Construct validity evaluation showed that longer DM duration and poor glycemic control contributes to increased problems.


CONCLUSIONS
Content and construct validity of the ICF-CS for DM was supported from the DMN patients' perspective. Some categories of the "Environmental factors" component need further studies to be appropriate.
Department of Hygiene and Public Health, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8605, Japan, htsutsui@med.teikyo-u.ac.jp.
Hideyo
H
Tsutsui
Toshiyuki
T
Ojima
Nobuaki
N
Ozaki
Masataka
M
Kusunoki
Tetsuya
T
Ishiguro
Yoshiharu
Y
Oshida
D000368:Aged; D003928:Diabetic Nephropathies / Q000145:classification / Q000503:physiopathology* / Q000523:psychology / Q000628:therapy; D005260:Female; D006442:Glycated Hemoglobin / Q000378:metabolism*; D006801:Humans; D064702:International Classification of Functioning, Disability and Health; D007676:Kidney Failure, Chronic / Q000145:classification / Q000503:physiopathology* / Q000523:psychology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D006435:Renal Dialysis; D013997:Time Factors
D006442:Glycated Hemoglobin; C517652:hemoglobin A1c protein, human