Rheumatoid Arthritis (R.A.) Factor in Near Relatives of Sero-Positive and Sero-Negative Patients with Rheumatoid Arthritis

Abstract

There exists a statistically significant difference (P = 0.05) between the percentages of sero-positive and sero-negative relatives of the probands with rheumatoid arthritis in the sero-positive and sero-negative groups. It seems that the sero-positive form of rheumatoid arthritis has a (slight) hereditary trend and that the sero-negative form has not.