Table 2.
Age‐adjusted incidence of meningioma (2004‐2015): The SEER‐18 registry database
| Characteristic | Cases, No. (%) | Rate | 95% CI |
|---|---|---|---|
| Overall | 83 030 (100) | 7.92 | 7.86‐7.97 |
| Sex | |||
| Male | 22 161 (26.7) | 4.75 | 4.68‐4.81 |
| Female | 60 869 (73.3) | 10.66 | 10.57‐10.75 |
| Race | |||
| White | 65 372 (78.7) | 7.82 | 7.76‐7.88 |
| Black | 9825 (11.8) | 9.52 | 9.32‐9.71 |
| AIAN | 516 (0.6) | 4.76 | 4.33‐5.23 |
| API | 6391 (7.7) | 6.56 | 6.40‐6.73 |
| Age at diagnosis | |||
| <20 | 370 (0.4) | 0.13 | 0.12‐0.14 |
| 20‐39 | 5226 (6.3) | 1.96 | 1.90‐2.01 |
| 40‐59 | 25 670 (30.9) | 8.72 | 8.61‐8.83 |
| 60‐79 | 35 491 (42.7) | 26.20 | 25.93‐26.48 |
| ≥80 | 16 273 (19.6) | 46.83 | 46.11‐47.55 |
| Histologic type | |||
| Meningioma, NOS | 69 884 (84.2) | 6.68 | 6.63‐6.73 |
| Meningothelial | 4628 (5.6) | 0.44 | 0.42‐0.45 |
| Fibrous | 1519 (1.8) | 0.14 | 0.14‐0.15 |
| Psammomatous | 913 (1.1) | 0.09 | 0.08‐0.09 |
| Angiomatous | 460 (0.6) | 0.04 | 0.04‐0.05 |
| Hemangioblastic | — | — | — |
| Transitional | 2219 (2.7) | 0.21 | 0.20‐0.22 |
| Clear cell | 381 (0.5) | 0.04 | 0.03‐0.04 |
| Atypical | 2986 (3.6) | 0.28 | 0.27‐0.29 |
| Meningeal sarcomatosis | 28 (‐) | — | — |
| WHO grade | |||
| I | 78 440 (94.5) | 7.48 | 7.43‐7.54 |
| II | 3568 (4.3) | 0.34 | 0.33‐0.35 |
| III | 1022 (1.2) | 0.10 | 0.09‐0.10 |
| Tumor size, cm | |||
| ≤3 | 44 268 (53.3) | 4.23 | 4.19‐4.27 |
| >3 to ≤5 | 15 123 (18.2) | 1.44 | 1.42‐1.46 |
| >5 | 7789 (9.4) | 0.74 | 0.72‐0.75 |
| Unknown | 15 850 (19.1) | 1.51 | 1.49‐1.54 |
Abbreviations: AIAN, American Indian/Alaskan Native; API, Asian/Pacific Islander; SEER, Surveillance, Epidemiology, and End Results.
Note Rates were calculated as number of cases per 100 000 person‐years and age‐adjusted to the 2000 US standard population. ‐ Statistic suppressed because of fewer than 16 cases annually.