title: Dermatosis papulosa nigra.
abstract: The incidence and natural history of dermatosis papulosa nigra was assessed in eighty-two black patients. The overall incidence in the study population was 77 percent, with a predominance in women of almost 2:1. Fifty-four percent of these patients reported that other members of their families were also affected. The peak incidence and number of lesions occurred in those patients in their sixties. Fair-complexioned blacks had the lowest frequency of involvement. These findings confirm those of other investigators; however, we report a higher than average incidence of involvement in the population we studied.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D044383:Black People; D002648:Child; D002675:Child, Preschool; D012628:Dermatitis, Seborrheic / Q000453:epidemiology / Q000473:pathology; D005260:Female; D006801:Humans; D007223:Infant; D007642:Keratosis / Q000453:epidemiology / Q000473:pathology; D008297:Male; D008875:Middle Aged