Dr. Wallace C. Oppel, co-author of "The Age of Attaining Bladder Control" (Pediatrics, 42:615, 1968), has requested that the following corrections be made in Table I.
Australian girls at age 4 should be 30%.
The data for Swedish children should be: at age 4, boys-11.7, girls-7.2, all-9.6; at age 6, boys-9.1, girls-4.5, all-7.0.