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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Graefes Arch Clin Exp Ophthalmol. 2021 Mar 29;259(9):2661–2669. doi: 10.1007/s00417-021-05158-4

Fig. 1.

Fig. 1

Rate of axial length growth by gestational age, birthweight, and highest retinopathy of prematurity (ROP) stage (a) There is no difference in the rate of axial length growth between various subsets of gestational age (p = 0.14). (b) There is a statistically significant difference in the rate of axial length growth between subsets of birthweight, where the rate of axial length growth is slower for those with lower birthweight (p = 0.02). Due to a significant interaction between postmenstrual age and birthweight (p = 0.011), the birthweight effect increases with later postmenstrual age. (c) While there was no statistically significant difference in the rate of axial length growth by highest ROP stage ever present (p = 0.08), the rate of axial length growth for stage 0–2 ROP ranged from 0.20 to 0.26mm/week, while the rate of axial length growth for stage ≥ 3 ROP was 0.12 mm/week. All graphs include the interaction term of each variable with postmenstrual age