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Table 4 Survival outcomes stratified by study

From: Validation of the graded prognostic assessment for gastrointestinal cancers with brain metastases (GI-GPA)

Group

Median survival in months

6-month probabilitya

12-month probabilitya

0–1 p.

2.3

11%

5%

Sperduto et al. 0–1 p.

3

30%

14%

1.5–2 p.

4.4

38%

13%

Sperduto et al. 1.5–2 p.

7

53%

37%

2.5–3 p.

9.4

71%

36%

Sperduto et al. 2.5–3 p.

11

67%

47%

3.5–4 p.

12.7

78%

56%

Sperduto et al. 3.5–4 p.

17

87%

68%

  1. aestimated from [1] Fig. 1