CRP and Hypoalbuminemia: These patients also had higher CRP levels (11.3 vs. 4, p < 0.001), a greater degree of hypoalbuminemia (32.5 vs. 35, p < 0.001), lower oxygen saturation (92% vs. 94%, p < 0.001), and lower PaO2/FiO2 (266 vs. 281, p < 0.001).