Some PHE online tools and some traffic injury indicators – examples & questions Dr Don Sinclair South East Local Knowledge & Intelligence Service
PHE’s Knowledge & Intelligence Function Purpose – to support health improvement with information for local (and national) decision makers to identify and measure threats to health and variations over time and between places/populations Local Knowledge and Intelligence Services liaise with local decision makers 2
What we want from this event… To mention some PHE information sources To discuss the development of some indicators for measuring traffic injuries To obtain advice on improving the value and presentation of indicators for local decision makers (from a public health perspective) 3 PHE Knowledge & Intelligence Services
Public Health Profiles Fingertips 4
Health Profiles Health Profiles 5
Fingertips outputs Maps, charts, PDF reports Children killed and seriously injured in RTAs 6
Health assets profile 7
Evolution of PHE’s KSI Indicator KSI indicator in the Public Health Outcomes Framework was designed to demonstrate variation between local authorities Numerator = number of people of all ages reported killed or seriously injured on the roads in the defined area Necessary to calculate a rate for presentation on PHE’s tools Denominator = Census-based mid-year resident population estimate for the middle year of the indicator period Debate about suitability of denominator i.e. residence vs location of injury and potential distortion by size of resident populations 8 PHE Knowledge & Intelligence Services
PHE’s KSI Indicator Annual numbers killed or seriously injured on roads per 100,000 resident population, crude rates, 2013-15 9 PHE Knowledge & Intelligence Services
Related Indicators East Sussex RTA indicators crude rates per 100,000 resident population (per 1000 RTAs for indicator 12.01) 10 PHE Knowledge & Intelligence Services
New Denominator Proposal PHE Knowledge and Intelligence was asked to help local authorities interpret the KSI indicator so they could work to address the causes ONS released an annual report on road lengths: Road lengths in Great Britain: 2015 This provides the lengths of different road types within each upper tier local authority Using this, a KSI rate per 1000km can be calculated 11
T op 10 Ranking for KSI/1000 km length of road by upper tier local authority 12 PHE Knowledge & Intelligence Services
KSI per 100,000 resident population 13
Annual numbers killed or seriously injured on roads per 100,000 resident population, crude rates, 2013-15 14 PHE Knowledge & Intelligence Services
Bottom 10 Ranking 15 PHE Knowledge & Intelligence Services
However… 16
Comparing Ranking R² = 0.0013 If we do a broad 160 comparison between 140 the new indicator (NB 120 New Method Ranking only 1yr of data used) vs the old indicator (3yr 100 average) we see no 80 relationship. 60 40 20 0 0 20 40 60 80 100 120 140 160 PHOF Ranking 17 PHE Knowledge & Intelligence Services
Mapping the new denominator The map on the left shows upper tier local authorities shaded based on deciles of KSI per 1000km of road There is a broad trend towards urban areas having higher rates Is the indicator just showing ‘busy - ness’? Is this a bad thing? 18 PHE Knowledge & Intelligence Services
The Deprivation Question Deprivation is present in urban and rural areas It is also associated with road traffic casualties Driving at excessive speed, driver intoxication, driver/passenger failure to wear seat-belts, and unlicensed/uninsured driving are most prevalent in fatal collisions in the most deprived IMD quintiles Clarke et al, 2008. A poor way to die: social deprivation and road traffic fatalities http://www.psychology.nottingham.ac.uk/staff/ddc/c8cxpa/further/CR_material/poorwayto die.pdf 19
Questions What does the audience think local authorities might find useful? What tools/methods exist outside public health which could inform local public health teams? What should be prioritised? Any other questions? 20 PHE Knowledge & Intelligence Services
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