Patients with lung lesions involving two or more lobes, a large amount of pleural effusion, high levels of inflammatory markers (CRP level of ≥ 25.92 mg/L, LDH level of ≥ 378 U/L), or a long hospital stay (a hospitalization time of ≥ 10.5 days) had longer radiographic resolution. Here, CRP is linked to Pleural effusion.