Figure 6: Average registration delay for all drug poisoning deaths and deaths related to drug misuse, deaths registered in 1993–2013
England and Wales
Source: Office for National Statistics
The registration delay is calculated as the difference between the date each death occurred and the date it was registered, measured in days. The average delay is represented using the median. Additional information on the calculation of registration delays is provided Background note 16.
Cause of death was defined using the International Classification of Diseases, Ninth Revision (ICD-9) for the years 1993 to 2000 and Tenth Revision (ICD-10) from 2001 onwards. The underlying cause of death codes used to select 'all drug poisonings' and 'drug misuse' deaths are shown in Background note 4. Drug misuse as defined by the current headline indicator shown in Background note 5. Deaths from drug misuse are included in the figures for all drug poisoning.
The drug misuse indicator was revised in 2014 with 20 new substances. Therefore figures for drug misuse may not match those previously published. More details can be found in the ‘Methodological changes’ section of this bulletin.
Figures are for deaths registered, rather than deaths occurring in each calendar year.
Figures for England and Wales include deaths of non-residents.