[Incidence of malformations of the urinary tract in the Rhône-Alps area. Apropos 1357 cases of affected infants identified over a 7-year period (1976-1982)].

The authors use a regional birth defect registry computerized since 1976 January 1st. They describe the incidence of urinary tract defects, excluding renal dysplasias. Their classification shares this group of malformations in 3 parts: those included in a multiple defects association, identified or not, those associated with renal defects, and the isolated urinary tract defects.