In the article,"Utilization and Morbidity: Random on Tandem?" by Starfield et al (Pediatrics 1985;75:241-247), there is an error in Table 3. The footnote should read, *1 = yes, 0 = no; constant = 10.9469; R2 = .2879; SEE = 12.0142; N = 2,250; H, high. Significance is indicated as follows: a, P < .05; b, P < .01; c, P < .001.