CRP and Hypoalbuminemia: As the clinicians did not apply for related examinations, information about hemogram, hypoalbuminemia, kidney function, liver function, and inflammatory indicator (C reactive protein, procalcitonin, or interleukin-6) were unavailable in 53 (1.99%), 439 (16.49%), 127 (4.77%), 117 (4.39%), 533 (20.02%) patients, respectively.