Figure 5: Age-standardised mortality rates for selected substances, females, deaths registered in 2009–2013
England and Wales
Source: Office for National Statistics
Age-standardised mortality rates per 1 million population have been revised using the the 2013 European Standard Population. Age-standardised rates are used to allow comparison between populations which may contain different proportions of people of different ages. More details can be found in the ‘Methodological changes’ section of this bulletin.
Cause of death was defined using the International Classification of Diseases, Tenth Revision (ICD-10). The underlying cause of death codes used to select deaths related to drug poisoning are shown in Background note 4.
Figures are for deaths registered, rather than deaths occurring in each calendar year. Due to the length of time it takes to complete a coroner’s inquest, it can take months or even years for a drug-related death to be registered. More details can be found in the ‘Impact of registration delays on drug-related deaths’ section below.
Figures for England and Wales include deaths of non-residents.