Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients

Research output: Contribution to journalJournal articlepeer-review

Standard

Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients. / Pakpour, Amir H.; Nourozi, Saeedeh; Mølsted, Stig; Harrison, Adrian Paul; Nourozi, Khadije; Fridlund, Bengt.

In: Iranian Journal of Kidney Diseases, Vol. 5, No. 3, 2011, p. 175-181.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Pakpour, AH, Nourozi, S, Mølsted, S, Harrison, AP, Nourozi, K & Fridlund, B 2011, 'Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients', Iranian Journal of Kidney Diseases, vol. 5, no. 3, pp. 175-181.

APA

Pakpour, A. H., Nourozi, S., Mølsted, S., Harrison, A. P., Nourozi, K., & Fridlund, B. (2011). Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients. Iranian Journal of Kidney Diseases, 5(3), 175-181.

Vancouver

Pakpour AH, Nourozi S, Mølsted S, Harrison AP, Nourozi K, Fridlund B. Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients. Iranian Journal of Kidney Diseases. 2011;5(3):175-181.

Author

Pakpour, Amir H. ; Nourozi, Saeedeh ; Mølsted, Stig ; Harrison, Adrian Paul ; Nourozi, Khadije ; Fridlund, Bengt. / Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients. In: Iranian Journal of Kidney Diseases. 2011 ; Vol. 5, No. 3. pp. 175-181.

Bibtex

@article{d9ee287133c44bf7bb55fe4527c16d5c,
title = "Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients",
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 alpha 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.",
keywords = "Former LIFE faculty, health surveys, quality of lie, hemodialysis, psychometrics",
author = "Pakpour, {Amir H.} and Saeedeh Nourozi and Stig M{\o}lsted and Harrison, {Adrian Paul} and Khadije Nourozi and Bengt Fridlund",
year = "2011",
language = "English",
volume = "5",
pages = "175--181",
journal = "Iranian Journal of Kidney Diseases",
issn = "1735-8582",
publisher = "Iranian Society of Nephrology",
number = "3",

}

RIS

TY - JOUR

T1 - Validity and reliability of short form-12 questionnaire in Iranian hemodialysis patients

AU - Pakpour, Amir H.

AU - Nourozi, Saeedeh

AU - Mølsted, Stig

AU - Harrison, Adrian Paul

AU - Nourozi, Khadije

AU - Fridlund, Bengt

PY - 2011

Y1 - 2011

N2 - 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 alpha 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.

AB - 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 alpha 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.

KW - Former LIFE faculty

KW - health surveys

KW - quality of lie

KW - hemodialysis

KW - psychometrics

M3 - Journal article

VL - 5

SP - 175

EP - 181

JO - Iranian Journal of Kidney Diseases

JF - Iranian Journal of Kidney Diseases

SN - 1735-8582

IS - 3

ER -

ID: 37639338