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Table 5 Age-, sex-, and race/ethnic group-adjusted rate ratios for period by glioma subtype, age 30 to 69 years, SEER, 1992-2007

From: Demographic variation in incidence of adult glioma by subtype, United States, 1992-2007

 

GBM

Non-GBM

Totala

Period

N

RRb (95% CIc)

N

RRb (95% CIc)

N

RRb (95% CIc)

1992-1995

2,181

1.00 (reference)

1,632

1.00 (reference)

3,813

1.00 (reference)

1996-1999

2,351

1.03 (0.97, 1.09)

1,655

0.97 (0.91, 1.04)

4,006

1.00 (0.96, 1.05)

2000-2003

4,930

1.02 (0.97, 1.07)

2,986

0.87 (0.82, 0.92)

7,916

0.95 (0.92, 0.99)

2004-2007

5,626

1.06 (1.01, 1.12)

2,979

0.84 (0.79, 0.89)

8,605

0.97 (0.93, 1.01)

p-value, trendd

 

0.012

 

< 0.0001

 

0.037

  1. aGBM and non-GBM combined
  2. bAdjusted for age, sex, and race/ethnic group by Poisson regression
  3. cConfidence interval
  4. dCalculated from the likelihood ratio test for the addition of period (as an interval variable) to the model
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BMC Cancer

ISSN: 1471-2407

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