Descriptive Epidemiology of Brain and Central Nervous System Tumours: Results from Iran National Cancer Registry, 2010-2014

Table 3

Distribution of tumours in different sites (topography) and patients’ mean age.

Location	Total number (%)	Male mean age	Female mean age	value
Meninges	408 (2.5%)	53.4	50	0.09
Cerebrum	521 (3.1%)	43.4	40.8	0.18
Frontal lobe	1316 (8%)	44.7	45.6	0.37
Temporal lobe	1039 (6.3%)	46.9	45.2	0.16
Parietal lobe	823 (5%)	47.9	46.7	0.35
Occipital lobe	182 (1.1%)	49.5	44.1	0.05
Ventricle	147 (0.9%)	35.5	38	0.47
Cerebellum	633 (3.8%)	29.2	33.1	0.03
Brainstem	182 (1.1%)	31	25.6	0.09
Brain, NOS	8968 (54.2%)	46.2	46.2	0.84
Spinal cord	515 (3.1%)	42.3	44.5	0.24
Cranial nerves	34 (0.2%)	40.4	32.2	0.36
Overlapping brain and central nervous system	45 (0.3%)	52.4	49.6	0.66
Missing	200 (1.2%)	43.7	40.5	0.32
Overlapping brain	382 (2.3%)	47	44.5	0.20
Cauda equina	7 (0.04%)	43.7	46	0.91
Nervous system, NOS	1145 (6.9%)	51.8	51.2	0.67