Risk factors for Sudden Unexpected Death in Infancy (SUDI) are well described, and such cases are now investigated according to standard protocols. In London, Project Indigo of the Metropolitan Police provides a unique, detailed framework for such data collection. We investigate such data to provide a contemporary account of SUDI in a large city and further link data to publically available datasets to investigate interactions with social factors.
Retrospective analysis of data routinely collected by the Metropolitan Police Service in all cases of non-suspicious SUDI deaths in London during a six year period.
SUDI deaths are associated with markers of social deprivation in London. A significant proportion of such deaths are associated with potentially modifiable risk factors such as cigarette smoking and co-sleeping, such behaviour also being associated with social factors, including accommodation issues.
Routinely collected data provide valuable insight into patterns and associations of mortality, with SUDI remaining a significant issue in London. Risk factors include social disadvantage, which may manifest in part by affecting behavioural patterns such as co-sleeping and public health interventions to reduce rates require significant social modification.
Below: Number of deaths occurring each calendar month amongst 477 individuals aged less than two years dying in the Metropolitan police area between 2005 and 2010
Below: Number of deaths occurring each calendar month amongst 477 individuals aged less than two years dying in the Metropolitan police area between 2005 and 2010, divided into explained and unexplained deaths
Below: Deaths amongst 477 individuals aged less than two years dying in the Metropolitan police area between 2005 and 2010 arranged by Deprivation level
Below: Characteristics of Co-sleeping on the occasion of death of 477 individuals aged less than two years dying in the Metropolitan police area between 2005 and 2010. a Co-sleeping ratio and deprivation: Deaths associated with co-sleeping in each Deprivation group (Indices of Multiple Deprivation Score Rank for Lower Layer Super Output Areas (LSOAs)) divided by the total number of deaths in that deprivation group. b Location of co-sleeping. c Individuals co-sleeping. d Reason given for co-sleeping
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Department of Paediatric Pathology, Camelia Botnar Laboratories, Great Ormond Street Hospital for Children NHS Trust, Great Ormond Street, London, WC1N 3JH UK
Institute of Child Health, University College London, London, UK
Specialist Crime and Operations, SCO17, Metropolitan Police Service, London, UK
Department of Cellular Pathology, University Hospital of Wales, Cardiff, UK
Andrew R. Bamber, Email: email@example.com.
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