I'm still not sure where they get the 20 years from, the Framework doc they reference doesn't itself seem to have have references.
I found that there was a British Diabetic Association Cohort Study covering those diagnosed 1972-93 and followed up to February 1997. The oldest subjects would have been 55 by the end of the study and it wouldn't reflect todays potentially better control . Reading the abstracts they may have extrapolated a figure for life expectancy. (can't get access to the study)
I also found a study that was trying to model the cost benefits of intensive glucose control. It appeared well researched with an extensive literature search. They used the UK Framework figures for the prevalence of T1 but not for mortality.
http://www2.lse.ac.uk/management/do..._intensive_glucose_control_in_T1_diabetes.pdf
The 2006 study mentioned is indeed the only 'recent' one I've been able to find for the UK. Even then it is out of date. (certainly if you look at the improvements since then shown in the Pittsbugh study,) It compares deaths of people with T1 to those of people without, over the period 1992-1999. There is no doubt that mortality is higher in every age group but I can't see that it anywhere suggests a 20 year difference (The only overall averages are deaths during the period (remember most people didn't die during those years.) There was a 7 year difference (55 with T1 v 62 without)
http://www.springerlink.com/content/p52u7m1236r01u73/fulltext.html
The second study was from Denmark and was looking at risk factors so not helpful for UK overall figures)
I found that there was a British Diabetic Association Cohort Study covering those diagnosed 1972-93 and followed up to February 1997. The oldest subjects would have been 55 by the end of the study and it wouldn't reflect todays potentially better control . Reading the abstracts they may have extrapolated a figure for life expectancy. (can't get access to the study)
I also found a study that was trying to model the cost benefits of intensive glucose control. It appeared well researched with an extensive literature search. They used the UK Framework figures for the prevalence of T1 but not for mortality.
http://www2.lse.ac.uk/management/do..._intensive_glucose_control_in_T1_diabetes.pdf
As most death certificates of diabetic patients do not report diabetes as a cause of death, official statistics that report causes of mortality are unreliable for diabetes. So we estimated mortality from diabetes using mortality rates from longitudinal studies (Soedamah-Muthu et al. 2006a;
Rossing et al., 1996)
The 2006 study mentioned is indeed the only 'recent' one I've been able to find for the UK. Even then it is out of date. (certainly if you look at the improvements since then shown in the Pittsbugh study,) It compares deaths of people with T1 to those of people without, over the period 1992-1999. There is no doubt that mortality is higher in every age group but I can't see that it anywhere suggests a 20 year difference (The only overall averages are deaths during the period (remember most people didn't die during those years.) There was a 7 year difference (55 with T1 v 62 without)
http://www.springerlink.com/content/p52u7m1236r01u73/fulltext.html
The second study was from Denmark and was looking at risk factors so not helpful for UK overall figures)
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