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Reliability and validity of the Taiwan (Mandarin Chinese) version of the chronic respiratory questionnaire

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An Erratum to this article was published on 25 June 2011

Abstract

Purpose

The chronic respiratory disease questionnaire (CRQ) has been validated and proved useful in assessing therapies for pulmonary diseases. We translated the CRQ into a Taiwan (Mandarin Chinese) version and surveyed its validity and reliability.

Methods

The CRQ includes 20 items divided into four domains: dyspnea, fatigue, emotional function, and mastery. We followed a forward-back translation procedure to create the Taiwan version. A cross-sectional survey was conducted among outpatients with chronic obstructive pulmonary disease. Participants underwent tests including the CRQ, the medical outcomes study short form (SF-36), the St. George respiratory questionnaire (SGRQ), lung function tests (LFTs), and a graded exercise test (GET). We used Cronbach’s alpha to evaluate the internal consistency of the CRQ, intraclass coefficient for test–retest reliability, and Spearman’s correlation for validity.

Results

Thirty-six men and 4 women (mean age 67.9 ± 9.9 years) were recruited. Evidence of good internal consistency, test–retest reliability, convergent, discriminant, concurrent, and construct validity of the CRQ was shown. Spearman’s correlation showed moderate-to-strong correlation between the CRQ scores and scores of the SGRQ, subscales of the SF-36, and the results of LFTs and GET.

Conclusions

The Taiwan version of the CRQ shows good validity, internal consistency, and test–retest reliability.

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Abbreviations

CRQ:

The chronic respiratory disease questionnaire

HQOL:

Health-related quality of life

COPD:

Chronic obstructive pulmonary diseases

SF-36:

Medical outcomes study 36-item short-form health survey

SGRQ:

St. George respiratory questionnaire

PF:

Physical functioning

RP:

Role limitations due to physical problems

GH:

General health perceptions

VT:

Vitality

SF:

Social functioning

RE:

Role limitations due to emotional problems

MH:

Mental health

LFT:

Lung function tests

GET:

Graded exercise test

FVC:

Forced vital capacity

% pred:

Percent of predicted value

FEV1:

Forced expiratory volume in one second

MVV:

Maximum expiratory ventilation,

VO2peak:

Maximal oxygen consumption

VE:

Minute ventilation

VEpeak:

Minute ventilation at peak exercise

RER:

Respiratory exchange ratio

AT:

Anaerobic threshold

HR:

Heart rate

SatO2:

Oxygen saturation

rs :

Spearman’s rho

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Acknowledgments

The study was funded by research grant DMR-92-032 from China Medical University Hospital in Taichung, Taiwan. The authors are grateful to Prof. Tsai-Chung Li and Prof. Hsiang-Wen Lin for their advice in statistical analysis and critical review of the manuscript.

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Authors and Affiliations

  1. Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan, Republic of China

    Nai-Hsin Meng & Sui-Fon Lo

  2. School of Medicine, China Medical University, Taichung, Taiwan, Republic of China

    Nai-Hsin Meng

  3. Department of Social Medicine, College of Medicine, China Medical University, Taichung, Taiwan, Republic of China

    Fei-Na Chen

  4. Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, China Medical University Hospital, No. 2, Yude Rd, Taichung, Taiwan, Republic of China

    Wei-Erh Cheng

  5. Department of Respiratory Therapy, College of Health Care, China Medical University, Taichung, Taiwan, Republic of China

    Wei-Erh Cheng

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  1. Nai-Hsin Meng
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  2. Fei-Na Chen
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Corresponding author

Correspondence to Wei-Erh Cheng.

Additional information

An erratum to this article can be found at http://dx.doi.org/10.1007/s11136-011-9955-y

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Meng, NH., Chen, FN., Lo, SF. et al. Reliability and validity of the Taiwan (Mandarin Chinese) version of the chronic respiratory questionnaire. Qual Life Res 20, 1745–1751 (2011). https://doi.org/10.1007/s11136-011-9906-7

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