Table 1 Baseline characteristics of the enrolled patients

Age, years

58.45 ± 8.84 (39–72)

62.27 ± 13.21 (30–75)

0.266

BMI (kg/m²)

24.07 ± 2.42 (20.0–29.4)

23.06 ± 2.30 (18.20–27.50)

0.228

Duration of neurological symptoms, m

6.00 ± 7.56 (0.24–36.00)

3.30 ± 3.17 (0.25–12.00)

0.256

Tumor size, cm

4.29 ± 1.52 (1.00–6.70)

4.76 ± 1.54 (2.00–7.90)

0.369

Intraoperative blood loss, mL

1132.89 ± 696.35 (200–2000)

1072.73 ± 583.25 (200–2800)

0.795

Operation time, min

281.21 ± 85.94 (100–865)

346.82 ± 197.55 (100–504)

0.114