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Poll Results

 

In what month were you or your child diagnosed?

 
     

January

 
 

9%

 

  78

 
     

February

 
 

15%

 

  129

 
     

March

 
 

9%

 

  82

 
     

April

 
 

5%

 

  50

 
     

May

 
 

5%

 

  49

 
     

June

 
 

4%

 

  42

 
     

July

 
 

6%

 

  53

 
     

August

 
 

9%

 

  77

 
     

September

 
 

8%

 

  76

 
     

October

 
 

7%

 

  67

 
     

November

 
 

8%

 

  71

 
     

December

 
 

8%

 

  76

 


Total votes: 850

 

In what month were you or your child diagnosed?

Poll dates: March 2 - 9, 2008
Total Votes: 850

Researchers from around the world have looked at diagnosis data to determine if there is seasonal variability. Some of this research dates to the early 1990s. The published data offers conflicting results, some possible clues, but no clear evidence.

One study conducted in Finland showed that low levels of vitamin D3 correlated to an increased risk of developing type 1 diabetes. Since we get much of our vitamin D from exposure to sunlight, some could argue that there will be higher rates of diagnosis in the winter and in higher latitudes.

Another study looked at children from the UK and Europe from 1989 on and found no evidence of seasonality of diagnosis in Europe and some peaks in Scotland, Yorkshire and Leicester.

Yet another study found significant seasonal patterns in children diagnosed in Finland and Sardinia, the two areas of the world with the highest rate of type 1 diabetes.

The following graphs provide two different views of the data. Click to view a larger resolution image. You may also download the Excel spreadsheet with these graphs included. Also, see the data from this poll in March 2007 and March 2006.

Graph

Graph

For more information on research into the seasonality of diagnosis of type 1 diabetes, see:

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Last Updated: Sunday March 09, 2008 10:00:40
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