Rheumatology, Vol 38, 397-400, Copyright © 1999 by British Society for Rheumatology
RE Tager and M Tikly
A retrospective study of systemic sclerosis (SSc) in Blacks attending a
tertiary hospital on the Witwatersrand, South Africa, was undertaken. The
female:male ratio of the 63 patients was 4.6:1 and the mean age of onset of
SSc was 36.1 yr. Four of the 11 males were ex-goldminers and nine females
resided close to goldmines. Forty-one patients had diffuse cutaneous SSc
(dcSSc), 18 had limited cutaneous SSc (lcSSc) and four were unclassified.
Overall, 56% had pulmonary fibrosis, 37% had myositis and 98% were
antinuclear antibody (ANA) positive, with a notable absence of
anti-centromere antibodies. Subset comparisons showed myositis and a
reduced forced vital capacity to be significantly more common with dcSSc
than lcSSc. The only significant sex differences were that
arthralgia/arthritis was more common in women, while calcinosis occurred
more frequently in men. Seven of the eight known deaths occurred in
patients with dcSSc. These findings, particularly the age of disease onset,
predominance of the dcSSc subset, inflammatory features of myositis and a
raised erythrocyte sedimentation rate, and absence of anti-centromere
antibodies, are similar to those reported previously in African-Americans.
ORIGINAL PAPERS
Clinical and laboratory manifestations of systemic sclerosis (scleroderma) in Black South Africans
Department of Medicine, Chris Hani Baragwanath Hospital, Johannesburg, South Africa.
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