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. 2018 Mar 13;8:4448. doi: 10.1038/s41598-018-22791-y

Figure 5.

Figure 5

Tubular function correlates with hemoglobin levels in preterm neonates. (a) Hemoglobin levels of preterm neonates at age 14 days and 21 days. (b and c) Hemoglobin levels were significantly correlated with uCr/uβ2MG at days 14 and 21. (d and e) Hemoglobin levels were correlated with FENa at day 14, but not at day 21. (fk) Hemoglobin levels were not correlated with serum creatinine (f and g), gestational age (h and i), or birth weight (j and k). Association between two variables was evaluated by Pearson correlation. n = 18 for day 14 and n = 13 for day 21. uCr/uβ2MG, urinary creatinine to beta 2-microglobulin ratio; FENa, fractional excretion of sodium; Cre, creatinine.