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, 2 , , , , New England Journal of Medicine 26 .
- , - . . (Aaron A.R. Tobian) (Bloomberg School of Public Health, Johns Hopkins University in Baltimore, Maryland) . 2 , - .
, , 5534 -, , 15-49 . 3393 (61,3 %), -2 , 1684 ( ), 1709 24 ( ). -2, - , 6, 12, 24 . 24 .
-2 24 7,8 % , 10,3 % ( , 0,72). 24 18,0 % , 27,9 % ( 0,65). ( 1,10).
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08/04/2009