Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,815 questions · 6,211 findings · 638 reviews · Headline outcomes only

No studies found 1,052 · 16.9%GRADE not reported 441 · 7.1%Very low 1,700 · 27.4%Low 1,651 · 26.6%Moderate 1,070 · 17.2%High 297 · 4.8%

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Intervention not reported

IRI_BEV_RT vs CRT · elderly people with newly diagnosed glioblastoma Interventions: one treatment option Comparison: an alternative treatment option

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

RT40 (4 RCTs; 930 participants) · elderly people with newly diagnosed glioblastoma Interventions: radiotherapy with 40 Gy in 15 fractions (RT40); radiotherapy with 60 Gy in…

The intervention may leads to lower RT40 (4 RCTs; 930 participants) (low certainty).

1 finding from 1 review

Intervention not reported

TMZ (3 RCTs, 538 participants) · elderly people with newly diagnosed glioblastoma Interventions: radiotherapy with 40 Gy in 15 fractions (RT40); radiotherapy with 60 Gy in…

The intervention may leads to lower TMZ (3 RCTs, 538 participants) (low certainty).

1 finding from 1 review

Intervention not reported

CRT (2 RCTs; 635 participants) · elderly people with newly diagnosed glioblastoma Interventions: radiotherapy with 40 Gy in 15 fractions (RT40); radiotherapy with 60 Gy in…

The intervention led to lower CRT (2 RCTs; 635 participants); GRADE not reported.

1 finding from 1 review

Intervention not reported

BEV_CRT (1 RCT; 73 participants) · elderly people with newly diagnosed glioblastoma Interventions: radiotherapy with 40 Gy in 15 fractions (RT40); radiotherapy with 60 Gy in…

The intervention led to lower BEV_CRT (1 RCT; 73 participants); GRADE not reported.

1 finding from 1 review

Intervention not reported

BEV_RT (1 RCT; 75 participants) · elderly people with newly diagnosed glioblastoma Interventions: chemoradiotherapy (CRT); chemoradiotherapy plus bevacizumab (BEV_CRT);…

The intervention showed no clear difference in BEV_RT (1 RCT; 75 participants) (low certainty).

1 finding from 1 review