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SUMMARY:Estimates of life expectancy for compensation after injury - Jane 
 Hutton (University of Warwick)
DTSTART:20160830T085000Z
DTEND:20160830T093000Z
UID:TALK67116@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:When a compensation case arises from an injury\, which might b
 e caused by medical error or an industrial or traffic accident\, the finan
 cial settlement will often depend on the life expectancy. Compensation mig
 ht be for expected reduction in life time\, or for the cost of additional 
 care during the rest of the injured person&#39\;s life. &nbsp\;Estimates b
 ased on particular injuries or individual factors might be requested.<br><
 br>Estimates of effects of injury and life style on mortality use a variet
 y of data sources\, with no common statistics. Many lawyers assume that a 
 larger data set is always better than a smaller data set. Statisticians sh
 ould address the questions &#39\;What is the quality of data used?&#39\; a
 nd &#39\;What are the biases?&#39\;. Assessments of the intended populatio
 n\, the accuracy of individual items\, the completeness of follow-up and t
 he precise inclusion and exclusion criteria have to be made and explained.
  An article on mortality after spinal cord injury used a database of 49\,2
 14 people\, initially 50\,661 people. Five restrictions\, three of which w
 ere discussed\, left 31\,531 (62%) eligible people. The impact of excludin
 g people with missing data on major covariates was not reported. I suggest
  that the detailed check-lists provide by the equator network are an impor
 tant resource for evaluation (<a href="http://www.equator-network.org/)" t
 arget="_blank" rel="nofollow">http://www.equator-network.org/)</a>.<br><br
 >For some claims\, the effects of smoking\, alcohol consumption\, illegal 
 substance use and anorexia or obesity have to be considered as well as the
  main motivation of the claim. Effect sizes might be given as hazard ratio
 s\, standardised mortality rates\, from univariate or multivariate models.
  Approaches to estimating life expectancy which allow for these personal f
 actors include using reported relative risks\, hazard ratios and excess de
 ath rates to modify the death rates from national or regional life tables.
  I will discuss the challenges I have faced\, both in estimation and in co
 mmunicating results in court\, and the solutions I have adopted.<br><br>Re
 lated Links<ul><li><a target="_blank" rel="nofollow">http://www.equator-ne
 twork.org/</a>&nbsp\;- EQUATOR: Promoting transparent and accurate reporti
 ng of research studies.</li></ul>
LOCATION:Seminar Room 1\, Newton Institute
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