High sensitivity, specificity and predictive value of the Connective Tissue Disease Screening Questionnaire among urban African-American women

Autor: Elizabeth A. Wright, Ramina Jajoo, Lisa M. Fitzgerald, E Husni, Elena Massarotti, Timothy E. McAlindon, Karen H. Costenbader, Helen Pankey, Patricia A. Fraser, Elizabeth W. Karlson
Rok vydání: 2005
Předmět:
Zdroj: Lupus. 14(10)
ISSN: 0961-2033
Popis: The Connective Tissue Disease Screening Questionnaire (CSQ), developed to screen populations for SLE and other CTDs, has been validated in a predominantly Caucasian population with hospital-based controls. We aimed to test the performance characteristics of the CSQ in an urban, predominantly African-American population. The CSQ was administered by interview to women recruited for a study of environmental risk factors and SLE, including 99 cases with SLE validated by medical record review and 202 healthy controls recruited from the community. Overall, 88% of subjects had African heritage, 6% were Hispanic and 4% were non-Hispanic Caucasian. Controls were more likely to report African heritage than cases (91% versus 82%, P < 0.001). Sensitivity for detecting SLE was 88% and specificity was 91%. In this study, where the prevalence of SLE was 33%, predictive value of a positive CSQ was 82% and predictive value of a negative CSQ was 94%. The CSQ has slightly lower sensitivity but greater specificity for SLE in an urban, predominantly African-American population with community-based controls compared with a Caucasian population with hospital-based controls. These results suggest that the CSQ has adequate sensitivity and specificity and could be used in population studies to screen African-American women for SLE.
Databáze: OpenAIRE