List of preventable causes of death

The World Health Organization has traditionally classified death according to the primary type of disease or injury. However, causes of death may also be classified in terms of preventable risk factors—such as smoking, unhealthy diet, and sexual behavior—which contribute to a number of different diseases. Such risk factors are usually not recorded directly on death certificates.

Leading causes worldwide
Leading causes of preventable death worldwide as of the year 2001.

Leading causes among children worldwide
Various injuries are the leading cause of death in children 9 – 18 years of age. The top five worldwide unintentional injuries in children are as follows: