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Table 2 Comparison of patient demographic between two groups

From: Comparison of clinical outcomes in patients who underwent Gamma Knife radiosurgery for parasellar meningiomas with or without prior surgery

Variables

Patients with prior surgery

Patients without prior surgery

P values

Age (range), yr

48.1 (15.2–71)

55.2 (16.6–78.7)

0.004*

Follow-up, mo

47.0 (6.6–111.6)

34.8 (6–119.4)

0.037*

Tumor volume, cm3

8.77 (1.07–29.76)

7.78 (1.15–35.46)

0.500

Margin dose, Gy

12.2 (10–15)

12.3 (10–15)

0.681

Maximum dose, Gy

25.7 (20–31.1)

25.8 (22–33.3)

0.749

With symptoms, no. (%)

42 (93.3%)

41(85.4%)

0.319

  1. Abbreviations: yr years, mo month, no. number; *, statistical significance. Continuous variables are described as means and ranges and categorical variables are described as numbers