Epidemiology of cancer
![The age-adjusted death rate from cancer per 100,000 inhabitants in 2004.[1]
no data
less than 55
55–80
80–105
105–130
130–155
155–180
180–205
205–230
230–255
255–280
280–305
more than 305](/Images/godic/202501/11/Malignant_neoplasms_world_map_-_Death_-_WHO2004.svg4713.png")
![](/Images/godic/202501/11/Most_common_cancers_-_male,_by_occurrence4713.png")
![](/Images/godic/202501/11/Most_common_cancers_-_male,_by_mortality4714.png")
![](/Images/godic/202501/11/Most_common_cancers_-_female,_by_occurrence4714.png")
The epidemiology of cancer is the study of the factors affecting cancer, as a way to infer possible trends and causes. The study of cancer epidemiology uses epidemiological methods to find the cause of cancer and to identify and develop improved treatments.