Advanced Oncology Certified Nurse Practitioner (AOCNP) Certification Practice Test

What percentage of all cancers do primary brain tumors account for?

1. 1.2%

2. 2.7%

3. 3.5%

4. 5.0%

The correct answer is: 2.7%

Primary brain tumors account for approximately 2.7% of all cancers. This percentage reflects the overall incidence of primary brain tumors in relation to all cancer cases reported annually. The relatively small percentage is due to the higher prevalence of other cancer types, such as lung, breast, and prostate cancers, which dominate cancer statistics. Understanding the significance of this statistic is important in the field of oncology because it highlights the fact that, while brain tumors can be highly impactful and serious, they represent only a portion of the broader landscape of cancer diagnoses. This also informs treatment approaches, resource allocation, and research funding, as understanding incidence rates can guide where efforts are focused within oncology.