Fig. 2From: A J-shaped relationship between caloric intake and survival in critically ill patientsICU and hospital length of stay (days) of the four quartiles of caloric intake, before (a, b) and after (c, d) adjustments for between-quartile differences in baseline characteristics (age, type of admission, APACHE II and SOFA scores). The star denotes a statistically significant difference (p < 0.05)Back to article page