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Interrater reliability of the NIH stroke scale.

L B Goldstein¹, C Bertels, J N Davis

¹Veterans Administration Medical Center, Durham, NC 27705.

Archives of Neurology

|June 1, 1989

Summary

This summary is machine-generated.

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This study assessed a stroke rating scale

Area of Science:

Neurology
Clinical Trials
Biostatistics

Background:

Stroke rating scales are crucial for multicenter trials.
Assessing interobserver reliability is vital for data consistency.

Purpose of the Study:

To investigate the interobserver reliability of a specific rating scale used in stroke trials.
To determine the agreement between different raters using the scale.

Main Methods:

Twenty stroke patients were rated using the scale by four clinical stroke fellows.
Each patient was independently evaluated by pairs of observers.
The kappa statistic was calculated to measure interrater agreement for each scale item.

Main Results:

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Moderate to substantial interobserver agreement was found for 9 out of 13 items on the scale.

The rating system demonstrated favorable comparison with other existing scales.

Conclusions:

The investigated rating scale shows promising interobserver reliability for stroke assessment.
Further studies are needed to establish the validity of this rating system.