Table 3.

Malignant and Nonmalignant Primary Spinal Cord, Spinal Meninges, and Cauda Equina Tumor Histology Male-Female Rate Ratio, United States, 2004–2007^a

Sex	Total		Male		Female		Male-Female Rate Ratio (95% CI)c
Histology	Count	Rateb	Count	Rate	Count	Rate
Ependymoma	2478	0.21	1299	0.22	1179	0.19	1.15 (1.06–1.24)d
Pilocytic astrocytoma	194	0.02	110	0.02	84	0.02	1.28 (0.95–1.72)
Other astrocytic tumors	336	0.03	178	0.03	158	0.03	1.15 (0.92–1.43)
Tumors of spinal nerves	3125	0.26	1590	0.27	1535	0.25	1.11 (1.04–1.20)d
Meningioma	3820	0.32	723	0.13	3097	0.47	0.28 (0.26–0.30)d
Hemangioblastoma	269	0.02	141	0.02	128	0.02	1.15 (0.89–1.47)
Other mesenchymal	179	0.02	93	0.02	86	0.01	1.14 (0.84–1.55)
Lymphomas	306	0.03	184	0.03	122	0.02	1.76 (1.39–2.24)d
Other	470	0.04	243	0.04	227	0.04	1.10 (0.91–1.32)
Unclassified tumors	535	0.04	230	0.04	305	0.05	0.86 (0.72–1.03)

^aCounts pertain to 99.2% of the US population covered by eligible cancer registries. Data from 1 central cancer registry are not included.

^bRates are per 100,000 persons and age-adjusted to the 2000 US standard population (19 age groups; Census P25-1130).

^cNinety-five percent confidence intervals (CIs) were calculated using the Tiwari modification.

^dIndicates that the male rate is significantly different from the female rate (P < 0.05) as calculated by the rate ratio.