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Updated: Sep 4, 2026

Simultaneous Distinction of Monospecific and Mixed DFS70 Patterns During ANA Screening with a Novel HEp-2 ELITE/DFS70 Knockout Substrate
Published on: January 17, 2018
Rheumatoid factor in non-rheumatoid black patients
Abstract:
A total of 301 Black patients without rheumatic diseases was studied to estimate the prevalence and causes of positive rheumatoid factor. The latex slide test was positive in 25% of patients and 21% had a 'diagnostic' titre of 80 or more. A significant relationship between gamma-globulin levels and rheumatoid factor positivity was demonstrated. IgG appeared to be the most important in determining this relationship. The most common ailments among sero-positive patients were cirrhosis and tuberculosis.
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