Cancer

What is cancer?

Cancer is a broad group of diseases involving abnormal cell growth such that cells divide and grow forming malignant tumours that may spread through the lymphatic system or blood stream. Not all tumours are malignant – some remain benign and do not invade other organs. Lifestyle, genetic factors and environmental pollutants increase a persons’ risk of developing cancer. Cancer can affect people of all ages. The most common cancers include lung cancer (22% of all cancers), bowel cancer (12%), breast cancer (8-23%) and prostate cancer (7%). Cancer may be measured by incidence or mortality rates: incidence refers to how many new cases there are in a population, while mortality refers to the rate of deaths due to cancer in a specific population.

What is the evidence for PTSD in cancer patients?

Moderate to high quality evidence finds PTSD symptoms were significantly associated with more depression, anxiety, distress, and post-traumatic growth, and less social support and physical quality of life in cancer patients. There were no significant associations with age, gender, or time since cancer diagnosis.

August 2021

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Last updated at: 2:20 am, 3rd August 2021
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Fact Sheet Technical Commentary

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Title Colour Legend:
Green - Topic summary is available.
Orange - Topic summary is being compiled.
Red - Topic summary has no current systematic review available.