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Table 7 Multivariate hazard ratios, confidence intervals, and P-values of patients with GBM by racial groups, diagnosis year groups, and age

From: Effect of pretreatment clinical factors on overall survival in glioblastoma multiforme: a Surveillance Epidemiology and End Results (SEER) population analysis

 

Hazard Ratio

 

Estimate

95% CI

P value**

Racial Groups

   

   White*

reference

   Black

0.97

0.91 to 1.02

0.238

   Asian/Pacific Islander

0.89

0.83 to 0.95

<0.001

   American Indian/Alaska Native

0.87

0.69 to 1.10

0.230

   Unknown

0.51

0.33 to 0.78

0.002

   Other

0.91

0.49 to 1.69

0.764

Diagnosis Year Groups

   

   1973 to 1979*

reference

   1980 to 1989

0.88

0.87 to 0.89

<0.001

   1990 to 1999

0.80

0.78 to 0.81

<0.001

   2000 to 2008

0.65

0.62 to 0.68

<0.001

Radiation Treatment Groups

   

   Yes*

reference

  

   No

2.00

1.95 to 2.06

<0.001

   Unknown

1.59

1.48 to 1.70

<0.001

Extent of Surgery Groups

   

   Surgical Resection*

reference

  

   No Cancer Directed Resection

1.64

1.59 to 1.69

<0.001

   Unknown

1.27

1.20 to 1.34

<0.001

Age (Continuous Variable)

   

   Age

1.031

1.030 to 1.032

<0.001

  1. * Reference group against which other groups’ survival experience are compared.