[[[ Purpose: ]]] This present study describes the development, factor structure and initial validation of the Index of Post-Polio Sequelae (IPPS). [[[ Method: ]]] The IPPS was tested on a sample of 849 community-dwelling polio survivors between the ages of 40 and 93 years old who participated in a large, national study of menopause and aging in late polio. Items from the IPPS were submitted to a factor analysis using principal components extraction and rotated to oblique simple structure using promax rotation. Convergent validity was assessed using bivariate correlation. [[[ Results: ]]] Three factors were extracted that accounted for approximately 53% of the variance in the original IPPS items. Factor 1 (Pain) was loaded most heavily by two items referring to muscle and joint pain. Factor 2 (Atrophy) was loaded by items referring to muscle atrophy, involved muscle weakness, and fatigue. Factor 3 (Bulbar) was comprised of two items referring to breathing and swallowing problems. Bivariate correlations between health and psychosocial variables and each of the factors all were significant and in expected directions. [[[ Conclusions: ]]] This first validation of a standardized scale to assess the severity of post-polio sequelae in polio survivors suggests a psychometrically sound instrument whose factor structure represents commonly reported problems in the extant post-polio literature.
Development and factor analysis of an index of post-polio sequelae
폴리오 후유증 지수의 개발 및 요인 분석
[Category] 폴리오,
[Article Type] journal-article
[Source] pubmed
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