Figure 3.

Preterm subfoveal choroidal thickness increased with age. Six subjects that had five or more visits (subjects 1–6) all showed the choroid thickness increasing with age. A Wilcoxon signed rank matched pair analysis including 13 subjects (P = 0.009) (subjects 1–14, excluding subject 3 since it did not have a visit in the young preterm age group) and a linear regression for all the preterm subjects in the study (P = 0.002), represented by the solid black line across the graph, also showed that choroid increased with age.