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Table 3 Univariate Cox analysis of factors for OS, PFS, and SAP in CCGA

From: MGMT promoter methylation is a strong prognostic factor for survival after progression in high-grade gliomas

Variables

OS

PFS

SAP

HR (95%CI)

p value

HR (95%CI)

p value

HR (95%CI)

p value

Age

  < 60 vs. ≥ 60

1.30 (0.99–1.71)

0.06

1.27 (0.97–1.66)

0.08

1.09 (0.83–1.44)

0.53

Gender

 Male vs. Female

1.14 (0.90–1.43)

0.29

1.12 (0.90–1.40)

0.32

1.15 (0.91–1.45)

0.24

Grade

 3 vs. 4

2.06 (1.60–2.67)

0.00

1.97 (1.54–2.50)

0.00

1.42 (1.12–1.81)

0.00

TCGA subtype

0.94 (0.75–1.17)

0.56

1.01 (0.81–1.26)

0.92

0.85 (0.69–1.04)

0.11

MGMT methylation

 Yes vs. no

0.65 (0.50–0.84)

0.00

0.75 (0.58–0.96)

0.02

0.68 (0.52–0,87)

0.00

IDH1 mutation

 Yes vs. no

0.62 (0.45–0.86)

0.00

0.64 (0.47–0.88)

0.01

0.77 (0.56–1.06)

0.11

TP53 mutation

 Yes vs. no

1.16 (0.72–1.89)

0.54

1.15 (0.71–1.86)

0.58

1.04 (0.65–1.69)

0.86

EGFR amplification

 Yes vs. no

0.65 (0.36–1.17)

0.15

0.82 (0.48–1.42)

0.48

0.59 (0.33–1.06)

0.08

Ki-67 expression

 0–1 vs. 2–3

1.71 (1.25–2.34)

0.00

1.64 (1.21–2.23)

0.00

1.40 (1.03–1.92)

0.03

LOH1p/19q

 Yes vs. no

0.66 (0.41–1.07)

0.09

0.66 (0.41–1.06)

0.09

0.75 (0.46–1.21)

0.24

Involved lobe

 Single vs. multiple

1.03 (0.81–1.31)

0.79

1.00 (0.80–1.27)

0.97

1.02 (0.81–1.29)

0.87

Resection

 Total vs. subtotal

0.97 (0.76–1.24)

0.78

0.97 (0.77–1.24)

0.82

1.07 (0.84–1.36)

0.61

Operation after progression

 Yes vs. no

1.17 (0.80–1.72)

0.41

NA

NA

0.98 (0.67–1.43)

0.90

TMZ after progression

 Yes vs. No

1.36 (0.86–2.15)

0.19

 

NA

1.12 (0.71–1.76)

0.64

Therapy

 Standard vs. unstandard

0.86 (0.67–1.09)

0.21

0.94 (0.74–1.18)

0.59

0.86 (0.67–1.10)

0.22