Fig.Ā 2From: RETRACTED ARTICLE: Serum sphingosine-1-phosphate levels and Sphingosine-1-Phosphate gene polymorphisms in acute respiratory distress syndrome: a multicenter prospective studya S1P levels did not correlate with worsening Berlin oxygenation categories (Pā=ā0.135). b Patients with sepsis as the primary cause of ARDS had lower S1P levels. ARDS acute respiratory distress syndrome, S1P sphingosine-1-phosphate, PF PaO2/FiO2 ratioBack to article page