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Statistics: New Zealand mattress-wrapping campaign

 

In 2002 a German environmental medicine practitioner, Dr Hannes Kapuste, published the statistical results of the New Zealand mattress-wrapping campaign in a peer-reviewed journal:
Giftige Gase im Kinderbett (Toxic Gases in Infants' Beds), Zeitschrift fuer Umweltmedizin (Journal of Environmental Medicine) 2002;44:18-20 
The "p" factor for the mattress-wrapping intervention was calculated by Dr Kapuste (in collaboration with the Statistics Department of the University of Munich) as being: 
p = less than 1.9 x 10-22 

It is usual in medical circles to regard a "p" factor of less than 0.01 (10-2) as sound proof of a scientific proposition; and if the "p" is less than 0.001 (10-3), that is regarded as virtually certain proof of the proposition.

The number 1.9 x 10-22 (the "p" for mattress-wrapping) can be written as: 0.000,000,000,000,000,000,000,19
Put another way, the statistical proof that mattress-wrapping prevents cot death (SIDS, crib death) is 1018  i.e. one billion billion times the level of proof which medical researchers generally regard as constituting certain proof of a scientific proposition.

Not surprisingly, therefore, Dr Kapuste described the toxic gas theory for cot death and mattress-wrapping for cot death prevention as having "overwhelming reliability".  

 

 

 
 
 
 
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