Reliability and validity of the finnish version of the neck disability index and the modified neck pain and disability scale

Translation and psychometric testing. To cross-culturally adapt the Neck Disability Index (NDI) to the Finnish language and to assess the reliability and validity of the Finnish version of the Neck Disability Index (NDI-FI) and the modified Neck Pain and Disability Scale (mNPDS-FI) in Finnish patien...

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Published in:Spine (Philadelphia, Pa. 1976) Vol. 35; no. 5; p. 552
Main Authors: Salo, Petri, Ylinen, Jari, Kautiainen, Hannu, Arkela-Kautiainen, Marja, Häkkinen, Arja
Format: Journal Article
Language:English
Published: United States 01.03.2010
Subjects:
Activities of Daily Living
Adaptation, Psychological
Adult
Aged
Cross-Cultural Comparison
Disability Evaluation
Female
Finland
Humans
Male
Middle Aged
Neck Pain - diagnosis
Pain Measurement - standards
Psychometrics
Quality of Life
Reproducibility of Results
Severity of Illness Index
Surveys and Questionnaires - standards
Finland
ISSN:1528-1159, 1528-1159
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Abstract Translation and psychometric testing. To cross-culturally adapt the Neck Disability Index (NDI) to the Finnish language and to assess the reliability and validity of the Finnish version of the Neck Disability Index (NDI-FI) and the modified Neck Pain and Disability Scale (mNPDS-FI) in Finnish patients with neck pain. Although largely used, no previous reports exist on the translation process or the testing of the psychometric properties of the Finnish version of the NDI or the mNPDS used in Finland. The translation of the questionnaire from English into Finnish was done in accordance with the published guidelines. A total of 101 patients with neck pain participated in the study. The reliability of the questionnaires was tested using a test-retest procedure at 2-week intervals. Further psychometric testing was done by assessing the construct validity and internal consistency of the questionnaires. Test-retest reliability (intraclass correlation coefficients) was excellent for the NDI-FI (0.94) and mNPDS-FI (0.91). Factor analysis identified 1 factor for the NDI-FI and 3 factors for the mNPDS-FI; pain intensity, work ability, and activities of daily living. The internal consistency value (Cronbach alpha) for the NDI-FI was 0.85, and 0.84, 0.83, and 0.82, respectively, for the 3 factors of the mNPDS-FI. The correlation between neck pain and the NDI-FI was 0.58 (P < 0.001) and 0.72 for the mNPDS-FI (P < 0.001). A statistically significant linear relationship was observed between self-estimated coping and the outcomes of the NDI-FI and the mNPDS-FI. The NDI-FI and the mNPDS-FI are reliable, valid instruments for assessing disability among Finnish patients with neck pain.
AbstractList Translation and psychometric testing. To cross-culturally adapt the Neck Disability Index (NDI) to the Finnish language and to assess the reliability and validity of the Finnish version of the Neck Disability Index (NDI-FI) and the modified Neck Pain and Disability Scale (mNPDS-FI) in Finnish patients with neck pain. Although largely used, no previous reports exist on the translation process or the testing of the psychometric properties of the Finnish version of the NDI or the mNPDS used in Finland. The translation of the questionnaire from English into Finnish was done in accordance with the published guidelines. A total of 101 patients with neck pain participated in the study. The reliability of the questionnaires was tested using a test-retest procedure at 2-week intervals. Further psychometric testing was done by assessing the construct validity and internal consistency of the questionnaires. Test-retest reliability (intraclass correlation coefficients) was excellent for the NDI-FI (0.94) and mNPDS-FI (0.91). Factor analysis identified 1 factor for the NDI-FI and 3 factors for the mNPDS-FI; pain intensity, work ability, and activities of daily living. The internal consistency value (Cronbach alpha) for the NDI-FI was 0.85, and 0.84, 0.83, and 0.82, respectively, for the 3 factors of the mNPDS-FI. The correlation between neck pain and the NDI-FI was 0.58 (P < 0.001) and 0.72 for the mNPDS-FI (P < 0.001). A statistically significant linear relationship was observed between self-estimated coping and the outcomes of the NDI-FI and the mNPDS-FI. The NDI-FI and the mNPDS-FI are reliable, valid instruments for assessing disability among Finnish patients with neck pain.
Translation and psychometric testing.STUDY DESIGNTranslation and psychometric testing.To cross-culturally adapt the Neck Disability Index (NDI) to the Finnish language and to assess the reliability and validity of the Finnish version of the Neck Disability Index (NDI-FI) and the modified Neck Pain and Disability Scale (mNPDS-FI) in Finnish patients with neck pain.OBJECTIVETo cross-culturally adapt the Neck Disability Index (NDI) to the Finnish language and to assess the reliability and validity of the Finnish version of the Neck Disability Index (NDI-FI) and the modified Neck Pain and Disability Scale (mNPDS-FI) in Finnish patients with neck pain.Although largely used, no previous reports exist on the translation process or the testing of the psychometric properties of the Finnish version of the NDI or the mNPDS used in Finland.SUMMARY OF BACKGROUND DATAAlthough largely used, no previous reports exist on the translation process or the testing of the psychometric properties of the Finnish version of the NDI or the mNPDS used in Finland.The translation of the questionnaire from English into Finnish was done in accordance with the published guidelines. A total of 101 patients with neck pain participated in the study. The reliability of the questionnaires was tested using a test-retest procedure at 2-week intervals. Further psychometric testing was done by assessing the construct validity and internal consistency of the questionnaires.METHODSThe translation of the questionnaire from English into Finnish was done in accordance with the published guidelines. A total of 101 patients with neck pain participated in the study. The reliability of the questionnaires was tested using a test-retest procedure at 2-week intervals. Further psychometric testing was done by assessing the construct validity and internal consistency of the questionnaires.Test-retest reliability (intraclass correlation coefficients) was excellent for the NDI-FI (0.94) and mNPDS-FI (0.91). Factor analysis identified 1 factor for the NDI-FI and 3 factors for the mNPDS-FI; pain intensity, work ability, and activities of daily living. The internal consistency value (Cronbach alpha) for the NDI-FI was 0.85, and 0.84, 0.83, and 0.82, respectively, for the 3 factors of the mNPDS-FI. The correlation between neck pain and the NDI-FI was 0.58 (P < 0.001) and 0.72 for the mNPDS-FI (P < 0.001). A statistically significant linear relationship was observed between self-estimated coping and the outcomes of the NDI-FI and the mNPDS-FI.RESULTSTest-retest reliability (intraclass correlation coefficients) was excellent for the NDI-FI (0.94) and mNPDS-FI (0.91). Factor analysis identified 1 factor for the NDI-FI and 3 factors for the mNPDS-FI; pain intensity, work ability, and activities of daily living. The internal consistency value (Cronbach alpha) for the NDI-FI was 0.85, and 0.84, 0.83, and 0.82, respectively, for the 3 factors of the mNPDS-FI. The correlation between neck pain and the NDI-FI was 0.58 (P < 0.001) and 0.72 for the mNPDS-FI (P < 0.001). A statistically significant linear relationship was observed between self-estimated coping and the outcomes of the NDI-FI and the mNPDS-FI.The NDI-FI and the mNPDS-FI are reliable, valid instruments for assessing disability among Finnish patients with neck pain.CONCLUSIONThe NDI-FI and the mNPDS-FI are reliable, valid instruments for assessing disability among Finnish patients with neck pain.
Author Häkkinen, Arja
Kautiainen, Hannu
Salo, Petri
Ylinen, Jari
Arkela-Kautiainen, Marja
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Snippet Translation and psychometric testing. To cross-culturally adapt the Neck Disability Index (NDI) to the Finnish language and to assess the reliability and...
Translation and psychometric testing.STUDY DESIGNTranslation and psychometric testing.To cross-culturally adapt the Neck Disability Index (NDI) to the Finnish...
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SubjectTerms Activities of Daily Living
Adaptation, Psychological
Adult
Aged
Cross-Cultural Comparison
Disability Evaluation
Female
Finland
Humans
Male
Middle Aged
Neck Pain - diagnosis
Pain Measurement - standards
Psychometrics
Quality of Life
Reproducibility of Results
Severity of Illness Index
Surveys and Questionnaires - standards
Title Reliability and validity of the finnish version of the neck disability index and the modified neck pain and disability scale
URI https://www.ncbi.nlm.nih.gov/pubmed/20147882
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