Figure 1From: Use of community-level data in the National Children’s Study to establish the representativeness of segment selection in the Queens Vanguard SiteDistribution of percent low birth weight (<2500 g) in Queens Census tracts. In comparison to the area of Queens (281.59 km2) shown on the map, the circles in the legend of the maps represent the total area of the 18 segments (middle circle - 6.18 km2) and the average area of a Queens NCS segment (smallest circle – 0.34 km2).Back to article page