Neck Pain Driving Index: Appropriateness of the Rating Scale and Unidimensionality of the Strategic, Tactical, and Operational Levels

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• 作者：Hiroshi Takasaki ; MSc ; ^{h.takasaki@uq.edu.au" class="auth_mail" title="E-mail the corresponding author} ; Venerina Johnston ; PhD ; Julia Treleaven ; PhD ; Gwendolen Jull ; PhD
• 关键词：Automobile driving ; Neck pain ; Questionnaires ; Rehabilitation ; Whiplash injuries
• 刊名：Archives of Physical Medicine and Rehabilitation
• 出版年：2013
• 出版时间：September 2013
• 年：2013
• 卷：94
• 期：9
• 页码：1842-1846
• 全文大小：128 K

文摘

To establish an appropriate scoring system using Rasch scores for the strategic, tactical, and operational levels of the Neck Pain Driving Index (NPDI) and to refine the NPDI by testing the unidimensionality of each driving performance level using Rasch analysis.

Design

Cross-sectional.

Setting

Tertiary institution.

Participants

Individuals with chronic whiplash-associated disorders (WAD) (N=123).

Interventions

Not applicable.

Main Outcome Measure

The NPDI, which was developed to evaluate self-reported driving difficulty in people with chronic WAD.

Results

On the basis of Rasch analyses, modifications were made to the response format, changing it from a 0 to 4 scale (0=no difficulty, 1=slight difficulty, 2=moderate difficulty, 3=great difficulty, 4=unable to drive because of the injury) to a 0 to 3 scale (0=no difficulty, 1=slight difficulty, 2=moderate difficulty, 3=great difficulty and unable to drive because of the injury). Unidimensionality of the strategic and operational levels was confirmed. Modification of the tactical level was necessary to ensure its unidimensionality. After removing the tasks “driving near (your) collision site,” “driving in a bad weather condition,” and “driving at night,” unidimensionality of the 4-item tactical level was confirmed. A 9-item NPDI was established. A table converting raw total scores into Rasch scores was created for each level.

Conclusions

This study established the 9-item NPDI, and its 3 subsections (strategic, tactical, and operational levels) are unidimensional. The magnitude of self-reported driving difficulty at each of the 3 subsections can be assessed with the use of a 0 to 3 scale and Rasch scores.