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. Author manuscript; available in PMC: 2007 May 10.
Published in final edited form as: Arch Pediatr Adolesc Med. 2006 Nov;160(11):1108–1113. doi: 10.1001/archpedi.160.11.1108

Figure 2.

Figure 2

Cognitive composite scores over time, comparing infant iron status groups within middle and low socio-economic status (SES) families. Iron status group and SES level each affected initial scores (P values < .01). Change over time differed only for the chronic-iron-deficiency group in low-SES families (P < .05). Each participant is represented once: good iron status (n = 67) compared to chronic iron deficiency (n = 20) in middle-SES families and good iron status (n = 65) compared to chronic iron deficiency (n = 33) in low-SES families. Symbols are placed at the average age for each assessment.