Table 4.

ASR per million person-years and APC of glioma by topography and histology, 1998–2013

nASR (95% CI)APC (95% CI)
Topography
 Brain stem2,6583.28 (3.16–3.41)0.89 (0.20–1.58)
 Optic nerve1,3921.72 (1.63–1.81)3.92 (1.76–6.13)
 Temporal lobe1,2631.53 (1.45–1.62)0.01 (−0.88–0.91)
 Cerebrum1,1291.38 (1.3–1.47)0.74 (−0.69–2.18)
 Frontal lobe1,0691.29 (1.22–1.37)2.58 (0.82–4.37)
 Brain, NOS7790.95 (0.89–1.02)−1.4 (−3.18–0.41)
 Cerebellum, NOS5300.65 (0.59–0.71)0.7 (−1.97–3.45)
 Parietal lobe5030.61 (0.56–0.67)−2.59 (−4.71 to −0.43)
 Overlapping lesions4870.59 (0.54–0.65)−1.2 (−3.07–0.71)
 Other8541.04 (0.97–1.12)−0.38 (−1.82–1.09)
Histology
Low-grade gliomas (major histologies)
 Oligodendroglioma, NOS5800.42 (0.65–0.76)−5.16 (−6.58 to −3.71)
 Fibrillary astrocytoma3980.93 (0.44–0.54)−4.13 (−7.17 to −1.00)
 Pleomorphic xanthoastrocytoma3470.70 (0.38–0.47)3.45 (0.99–5.98)
High-grade gliomas (major histologies)
 Astrocytoma, anaplastic7611.38 (0.86–1.00)0.72 (−1.12–2.59)
Other gliomas (major histologies)
 Glioma, malignant4,5895.65 (5.49–5.82)3.13 (2.19–4.08)
 Astrocytoma, NOS2,0962.56 (2.45–2.67)−2.4 (−3.38 to −1.42)
All other glioma histologies combined
 Other7621.41 (0.86–0.99)−1.97 (−4.64–0.78)
  • Abbreviation: NOS, not otherwise specified.