Fig. 4From: Effect of increased enteral protein intake on plasma and urinary urea concentrations in preterm infants born at < 32 weeks gestation and < 1500 g birth weight enrolled in a randomized controlled trial – a secondary analysisPlasma urea concentration in mg/dl and Urinary urea-creatinine-ratio (UUCR) show highly significant positive correlation (p < 0.0001), ρ = 0.72; y = 11.28407 + 0.9221688*xBack to article page