A total of 141 cases of sarcoidosis have been reviewed. Negroes constituted three quarters of the cases while comprising only one third of the clinic population.
The disease was seen three times as frequently in the female as in the male.
Over one half of the Negro patients were born in the Southeastern United States and about one third in the Northeastern section of the country. In the white group, sarcoidosis was quite common in Puerto Ricans and rare in individuals born in the continental United States.
Age of onset was somewhat earlier in the Negro patients.
While no marked racial differences were uncovered, hepatic, splenic, and ocular involvement, hypercalcemia, and hyperproteinemia (especially hypergammaglobulinemia) were somewhat more frequent in the Negro.
The course of the disease was not affected by the presence or absence of skin lesions. On the whole the prognosis tended to be better in the white group. Tuberculosis was a surprisingly uncommon complication.
LABOW TA, ATWOOD WG, NELSON T. Sarcoidosis in the American Negro. Arch Dermatol. 1964;89(5):682–689. doi:10.1001/archderm.1964.01590290048008
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