Table 4. Median RAS peptide concentrations and ratios between ARDS patients grouped by their renal failure status at study entry.

RAS peptide/ Ratio	Median concentration or ratio (interquartile range)
	No Renal Failure (N = 17)	Renal Failure (n = 22)	p-value
A(1–5)	0.05 (0.05–0.14)	0.44 (0.09–0.73)	0.003
A(1–9)	1.88 (0.63–3.50)	0.69 (0.05–1.83)	0.025
A(1–5)/ A(1–7)	0.18 (0.12–1.25)	1.00 (0.46–3.11)	0.02
A(1–9)/ A(1–10)	0.64 (0.14–2.06)	0.10 (0.05–0.52)	0.023