Table 4 Prognosis factors for decreased PFS by univariate analysis

Male gender

0.85 [0.50; 1.47]

Initial brain surgery

0.48 [0.27; 0.86]

Motor deficiency

1.42 [0.68; 2.94]

Antiepileptic medication

1.17 [0.69; 1.98]

Headaches

0.86 [0.46; 1.61]

Age (years) > 60

0.67 [0.40; 1.13]

Steroids (mg)

1.81 [1.04; 3.16]

PTV (cc) *

1.14 [0.90; 1.44]

KPS (%) ≥ 90

1.01 [0.58; 1.73]

Time from RTCT to fSBReRT (months) < 12

0.60 [0.35; 1.01]

Number of recurrences before reirradiation ≥ 1

1.84 [0.98; 3.44]

Multifocality

1.18 [0.47; 2.99]

Brain topography

Cortical

1

Subcortical

1.58 [0.77; 3.26]