EPO and retinopathy of prematurity: First EPO and AUC[EPO]0–2 weeks were significantly higher for patients with any (grade 1–3) ROP than for patients without ROP (ln[First EPO] 3.2 vs. 1.9, p = 0.01 and ln[AUC[EPO]0–2 weeks] 3.8 vs. 2.8, p = 0.01) (Table 4).