VALIDITY AND RELIABILITY OF SHORT FORM-12 QUESTIONNAIRE IN IRANIAN HEMODIALYSIS PATIENTS

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PAKPOUR AMIR H.; NOUROZI SAEEDEH; MOLSTED STIG; HARRISON ADRIAN P.; NOUROZI KHADIJE; FRIDLUND BENGT

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Journal: Iranian Journal of Kidney Diseases Year:2011 | Volume:5 | Issue:3 Page(s): 175-181

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Title

VALIDITY AND RELIABILITY OF SHORT FORM-12 QUESTIONNAIRE IN IRANIAN HEMODIALYSIS PATIENTS

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Keywords

HEALTH SURVEYS

QUALITY OF LIFE

HEMODIALYSIS

PSYCHOMETRICS

Abstract

Introduction. The aim of the study was to assess the validity and reliability of the SF-12 questionnaire in a sample of Iranian patients undergoing HEMODIALYSIS.Materials and Methods. One hundred and forty-four HEMODIALYSIS patients were included from dialysis centers in Zanjan, Iran, and were asked to complete the SF-12 and SF-36 questionnaires. An initial test-retest reliability evaluation was performed on a sample of 70 patients from the total group, with a retest interval of 14 days.Reliability was estimated by internal consistency and validity was assessed using known-group comparisons and construct validity on the patient group as a whole. A linear regression analysis was used to assess any variation in the physical component summary and mental component summary scores of the SF-36 with the respective component summary scores of the SF-12. In addition, the factor structure of the questionnaire was extracted by performing a confirmatory factor analysis.Results. Cronbach α for physical and mental component summaries were 0.89 and 0.90, respectively. The SF-12 showed a good discriminatory ability between subgroups of patients based on demographic and clinical variables. The confirmatory factor analysis for the original two-factor structure showed a good fit index (chi2=23.30, degrees of freedom=13), goodness-of-fit index=0.96, and root mean squared error of approximation=0.079).Conclusions. In general, the SF-12 has good psychometric properties and can be used as a shorter version of the SF-36 questionnaire in future studies involving Iranian patients undergoing HEMODIALYSIS.

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APA: Copy

PAKPOUR, AMIR H., NOUROZI, SAEEDEH, MOLSTED, STIG, HARRISON, ADRIAN P., NOUROZI, KHADIJE, & FRIDLUND, BENGT. (2011). VALIDITY AND RELIABILITY OF SHORT FORM-12 QUESTIONNAIRE IN IRANIAN HEMODIALYSIS PATIENTS. IRANIAN JOURNAL OF KIDNEY DISEASES (IJKD), 5(3), 175-181. SID. https://sid.ir/paper/309163/en

Vancouver: Copy

PAKPOUR AMIR H., NOUROZI SAEEDEH, MOLSTED STIG, HARRISON ADRIAN P., NOUROZI KHADIJE, FRIDLUND BENGT. VALIDITY AND RELIABILITY OF SHORT FORM-12 QUESTIONNAIRE IN IRANIAN HEMODIALYSIS PATIENTS. IRANIAN JOURNAL OF KIDNEY DISEASES (IJKD)[Internet]. 2011;5(3):175-181. Available from: https://sid.ir/paper/309163/en

IEEE: Copy

AMIR H. PAKPOUR, SAEEDEH NOUROZI, STIG MOLSTED, ADRIAN P. HARRISON, KHADIJE NOUROZI, and BENGT FRIDLUND, “VALIDITY AND RELIABILITY OF SHORT FORM-12 QUESTIONNAIRE IN IRANIAN HEMODIALYSIS PATIENTS,” IRANIAN JOURNAL OF KIDNEY DISEASES (IJKD), vol. 5, no. 3, pp. 175–181, 2011, [Online]. Available: https://sid.ir/paper/309163/en

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