1 Biometry Branch, Epidemiology and Biometry Research Program, National Institute of Child Health and Human Development, Landow Building, Room 6C-09, 7910 Woodmont Ave, Bethesda, MD 20892
2 State University of New York, Downstate Medical Center, Box 49, 450 Clarkson Ave, Brooklyn, NY 11203
3 Department of Pediatrics, University of Chicago, 950 E 59th St, Chicago, IL 60637
4 Long Island Jewish-Hillside Medical Center, Schneider Children's Hospital, New Hyde Park, NY 11040
In Reply.
We appreciate the thoughtful review and comments of Dr Poland regarding the analysis of mortality in the NICHD phototherapy study. The essence of Dr Poland's letter seems to be that, for infants of birth weights less than 1,000 g, a difference of mortality was observed with more deaths in the phototherapy group than the control group and that this difference may be a real difference even though it was not found to be statistically significant.