Table 3 Urinary 6-SMT levels by postnatal day in very preterm infants.

From: Urinary 6-sulfatoxymelatonin as a predictive biomarker for brain injury in very preterm infants

Time

Urinary 6-SMT (pg/mL)

H

P

Day 1

747.23(434.61-1,233.70)

10.79

0.005*

Day 3

847.98(673.12-1,151.49)

Day 7

919.48(715.63-1,374.32)

  1. * indicates statistical significance (p < 0.05). variables were reported as median (inter-quartile range). Group comparisons were performed using Kruskal-Wallis test.
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