Table 3.

Age-, period-, and race/ethnic group-adjusted male/female rate ratios by menopausal age group and glioma subtype, age 30 to 69 years, SEER, 1992-2007

	GBM		Non-GBM
Age (years)	N	RRa (95% CIb)	N	RRa (95% CIb)
30-44 (pre-menopausal)	2,056	1.70 (1.56, 1.86)	4,057	1.33 (1.25, 1.41)
45-54 (peri-menopausal)	4,135	1.61 (1.51, 1.71)	2,475	1.36 (1.25, 1.47)
55-69 (post-menopausal)	8,897	1.59 (1.52, 1.66)	2,720	1.48 (1.37, 1.60)
p-value for heterogeneityc		0.38		0.087

^aAdjusted for age (5-year age categories), period, and race/ethnic group by Poisson regression

^bConfidence interval

^cCalculated from the likelihood ratio test for the addition of the cross-product term for sex by menopausal age group to the Poisson model