Next, the preceding variables were forced into the ordinal regression model, and it was proved that admission serum ATF3 levels (OR = 1.018; 95% CI = 1.007–1.029; VIF = 1.991; p = 0.009), NIHSS scores (OR = 1.165; 95% CI = 1.059–1.284; VIF = 3.229; p = 0.002), and hematoma volume (OR = 1.102; 95% CI = 1.018–1.192; VIF = 3.481; p = 0.004) remained independently associated with ordinal mRS scores among all patients. Here, ATF3 is linked to hematoma.