Table 1 Baseline information and the comparison of the short-term outcome between the two groups

Age (mean ± standard deviation, years)

56.03 ± 7.55

55.40 ± 7.39

t = -0.374

Sex (male/female, patient)

23/17

25/15

χ² = 0.208

GCS score at admission (mean ± standard deviation, points)

7.45 ± 1.95

7.55 ± 2.01

t = -0.226

Hematoma volume (mean ± standard deviation, ml)

42.11 ± 4.78

43.72 ± 4.94

t = -1.488

Hematoma clearance rate (mean ± standard deviation, %)

94.33 ± 2.88

93.98 ± 2.63

t = 0.576

Postoperative initial ICP value (mean ± standard deviation, mmHg)

4.28 ± 2.95

5.70 ± 3.07

t = 2.115

ICP value on the first postoperative day (mean ± standard deviation, mmHg)

6.72 ± 1.81

8.40 ± 2.39

t = 3.549

Mean ICP (mean ± standard deviation, mmHg)

11.82 ± 2.37

13.47 ± 2.86

t = 2.811

DICP20 mmHg × 4 h (median (interquartile range))

0(0,392)

80(0,709)

Z = -2.059

Postoperative consciousness recovery time (mean ± standard deviation, h)

12.30 ± 3.94

19.33 ± 7.62

t = 5.182

The length of hospitalization (mean ± standard deviation, day)

18.25 ± 3.54

20.13 ± 4.05

t = 2.203