Figure 2.

Birth weight and gestational age of infants with threshold disease or worse from three high income countries (A); and low/middle income countries (B) in 1996–2002.

Notes: The horizontal line indicates the boundaries of the United Kingdom screening data. The letters in brackets refer to different regions or cities within a country. Reproduced with permission from Pediatrics, ;115:e518–e525, Copyright © 2005 by the AAP. Gilbert C, Fielder A, Gordillo L, et al. Characteristics of infants with severe retinopathy of prematurity in countries with low, moderate, and high levels of development: implications for screening programs.⁶

Abbreviations: GA, gestational age; ROP, retinopathy of prematurity.