helmets increase danger
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From: Derek C on 19 Apr 2010 14:03 On 19 Apr, 16:47, Mike Clark <mrc7-...(a)cam.ac.uk> wrote: > In message <gbsjs5p9lja7v22l6p489n68qequrnh...(a)4ax.com> > JMS <jmsmith2...(a)live.co.uk > wrote: > > [snip] > > > > > That does not make the question I posed invalid. > > What is an "average cyclist"? As far as I can see from looking at the > statistics the "average cyclist", is a cyclist who never has a serious > injury as a result of a cycling accident. > > Mike > -- > o/ \\ // |\ ,_ o Mike Clark > <\__,\\ // __o | \ / /\, "A mountain climbing, cycling, skiing, > "> || _`\<,_ |__\ \> | caving, antibody engineer and > ` || (_)/ (_) | \corn computer user" So why are there about 2500 reported killed and seriously injured cyclists in the UK every year? Only about 2% of journeys are made by bicycle, but cyclists make up 9% of the total KSI (killed and seriously injured) in UK road accidents. This figure has fallen from about 6500 in the mid1980s, a period during which helmet wearing has become much more commonplace! Figures from the DfT. Derek C
From: Mike Clark on 19 Apr 2010 14:25 In message <be3a3aaa-61f3-4bb3-8f4a-3bef92de6773(a)b33g2000yqc.googlegroups.com> Derek C <del.copeland(a)tiscali.co.uk> wrote: > On 19 Apr, 16:47, Mike Clark <mrc7-...(a)cam.ac.uk> wrote: [snip] > > What is an "average cyclist"? As far as I can see from looking at > > the statistics the "average cyclist", is a cyclist who never has a > > serious injury as a result of a cycling accident. > > > > So why are there about 2500 reported killed and seriously injured > cyclists in the UK every year? Only about 2% of journeys are made by > bicycle, but cyclists make up 9% of the total KSI (killed and > seriously injured) in UK road accidents. This figure has fallen from > about 6500 in the mid1980s, a period during which helmet wearing has > become much more commonplace! Figures from the DfT. > > Derek C You've given me the numbers for cyclists who have been reported as having had a serious accident. You've conveniently ignored the total number of cyclists, or number of cyclists who haven't been reported as KSI'd. I was addressing the discussion about averages, not extremes of the distribution. What is your definition of an "average cyclist"? Mike -- o/ \\ // |\ ,_ o Mike Clark <\__,\\ // __o | \ / /\, "A mountain climbing, cycling, skiing, "> || _`\<,_ |__\ \> | caving, antibody engineer and ` || (_)/ (_) | \corn computer user"
From: Peter Clinch on 19 Apr 2010 14:54 Derek C wrote: > So why are there about 2500 reported killed and seriously injured > cyclists in the UK every year? Only about 2% of journeys are made by > bicycle, but cyclists make up 9% of the total KSI (killed and > seriously injured) in UK road accidents. This figure has fallen from > about 6500 in the mid1980s, a period during which helmet wearing has > become much more commonplace! Figures from the DfT. Let's be clear... You /are/ the same person criticising BHRF for hilariously inept use of statistics, yes? Pete. -- Peter Clinch Medical Physics IT Officer Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net p.j.clinch(a)dundee.ac.uk http://www.dundee.ac.uk/~pjclinch/
From: Roland Perry on 19 Apr 2010 15:17 In message <d7gks55jrllho1lc464s2nch2buunmj6jf(a)4ax.com>, at 00:17:16 on Sun, 18 Apr 2010, JMS <jmsmith2010(a)live.co.uk> remarked: >>Peer review of a statistical paper (which this sort of risk analysis is) >>is useless if none of the peers are suitably qualified. >>Although they don't all have to work for insurance companies, obviously; >>some can work in academia. > >So a "peer" with a statistical background but not calling himself an >actuary would not be acceptable to review such a paper. Oh, you are making things up now. Remember: I said "an actuarial background", not "someone calling themselves an actuary". >(Have you found a suitable paper yet?) It was the papers that you are so fond of which would need this different kind of review. But seeing as you ask, please list some papers that support your view (and if possible the credentials of the reviewers). -- Roland Perry
From: Roland Perry on 19 Apr 2010 15:24
In message <be3a3aaa-61f3-4bb3-8f4a-3bef92de6773(a)b33g2000yqc.googlegroups.com>, at 11:03:19 on Mon, 19 Apr 2010, Derek C <del.copeland(a)tiscali.co.uk> remarked: >So why are there about 2500 reported killed and seriously injured >cyclists in the UK every year? Only about 2% of journeys are made by >bicycle, but cyclists make up 9% of the total KSI (killed and >seriously injured) in UK road accidents. Maybe it's because of they way they flagrantly disobey traffic law? -- Roland Perry |