Development of the Joint Protection Behavior Assessment

Area of Science:

• Rheumatology
• Occupational Therapy
• Rehabilitation Science

Background:

• Rheumatoid arthritis (RA) can lead to joint damage and functional limitations.
• Effective joint protection (JP) strategies are crucial for managing RA symptoms and preventing further joint deterioration.
• Current methods for assessing JP behavior in RA patients are limited.

Purpose of the Study:

• To develop and validate an observational assessment tool for evaluating the use of joint protection (JP) methods in individuals with rheumatoid arthritis (RA).
• To establish the reliability and validity of the developed assessment for use in clinical and research settings.

Main Methods:

• Subjects with and without RA were videotaped performing a kitchen activity.
• Behavioral codes for joint protection (JP) and non-JP methods were developed.
• Seven rheumatology occupational therapists scored the observed behaviors for JP method accuracy.
• Test-retest and interrater reliability studies were conducted.

Main Results:

• The Joint Protection Behavior Assessment (JPBA) demonstrated good content validity (kappa = 0.46 to 1.00).
• The assessment showed strong test-retest reliability (P < 0.0001) and interobserver agreement (kappa = 0.68 to 0.88).
• Construct validity was supported by significant correlations with hand impairment and function variables.

Conclusions:

• The JPBA is a reliable and valid observational assessment for evaluating JP method use in individuals with mild to moderate hand and upper limb involvement due to RA.
• The JPBA can be utilized to assess the effectiveness of joint protection (JP) education programs for rheumatoid arthritis (RA) patients.