Cancer survival rates
Here we look at the one-year and five-year net survival estimates for adults (aged 15–99 years) diagnosed with one of the 21 most common cancers in England during 2007–2011, and followed up to 2012. These cancers comprise over 90% of all newly diagnosed cancers.
Net survival is an estimate of the probability of survival from the cancer alone. It can be interpreted as the survival of cancer patients after taking into account the background mortality that the patients would have experienced if they had not had the cancer. Background mortality is derived from life tables of all-cause mortality rates in the general population. Net survival varies with age, and the age profile of cancer patients can vary with time and between geographical areas, so the estimates are age-standardised to facilitate comparison. Estimates are shown with their 95 per cent confidence intervals. For convenience, net survival is expressed as a percentage in the range 0–100 per cent.
For more detailed information on this data source please see the Office for National Statistics website.
Relative survival is the ratio of the observed survival experienced by cancer patients over a specified period of time after diagnosis to the expected survival in a comparable group from the general population in terms of age, sex and time period. Relative survival captures the excess mortality that can be attributed to the diagnosis. For example, relative survival of 80% mean that 80% of the patients that were expected to be alive after five years, given their age at diagnosis and sex, are in fact still alive (OECD Health at a Glance, 2013).