Fig. 2From: A simplified lung ultrasound approach to detect increased extravascular lung water in critically ill patientsCorrelation between the number of chest quadrants positive for B-lines at lung ultrasound and the values of EVLW/kg PBW. Spearman (rho) rank correlation test: sample size—19; Spearman’s coefficient of rank correlation (rho)—0.493; significance level—p = 0.032; 95% confidence interval for rho—0.499 to 0.774Back to article page