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Previous Volume 341:1697-1698 November 25, 1999 Number 22 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: The study by Tyson et al. (June 24 issue),¹ while impressive in design and numbers of infants studied, does not really answer the question of whether vitamin A supplementation reduces the risk of chronic lung disease in premature infants. The main drawback of this study, as well as those published previously,² is the definition of chronic lung disease. The best predictor of chronic lung disease is a chest x-ray film,³ whereas the authors' definition of chronic lung disease, the need for oxygen at 36 weeks' postmenstrual age, has a positive predictive value of only 63 percent.⁴

Although . . . [Full Text of this Article]

References

This article has been cited by other articles:

• Mactier, H, Weaver, L T (2005). Vitamin A and preterm infants: what we know, what we don't know, and what we need to know. Arch. Dis. Child. Fetal Neonatal Ed. 90: F103-F108 [Abstract] [Full Text]