TTR and anemia: The presence of accompanying hypotension (72 ± 12 vs 82 ± 12 mmHg, P < 0.001), mechanical ventilation (58.4% vs 17.8%, P < 0.001), oliguria (9.1% vs 1.7%, P = 0.005), hypoalbuminemia (30.9 ± 4.9 vs 36.7 ± 5.0 g/L, P < 0.001), low prealbumin level (151 vs 211 g/L, P < 0.001), and anemia (94 ± 20 vs 118 ± 21 g/L, P < 0.001) of patients in the death group was significantly increased compared to those in the survival group.