Researchers have pinpointed the genes responsible for these hereditary arrhythmias in the last 30 years.

Inherited arrhythmias, encompassing conditions such as cardiomyopathies, cardiac ion channel disorders, and coronary heart disease, represent the common causes that elevate the threat of sudden cardiac death among adults. 05), whereas the percentage with a URTI de- creased from 46.6% to 24.8% (P. The percentage born prematurely rose slightly from 20.0% to 29.0% (P =. 001) ( Table 2), especially among infants ,2 months (29% vs 63.8%) (Table 3), and the per- centage found in an adult bed increased from 23.4% to 45.4% (P. The percentage of SIDS infants bed- sharing at the time of death increased from 19.2% to 37.9% (P. 001) and those found prone de- creased from 84.0% to 48.5% (P. 001), whereas those placed supine increased from 1.9% to 41.7% (P. The percentage of SIDS infants placed to sleep prone decreased from 85.4% to 30.1% (P. Although the average postnatal age of SIDS infants remained consistent over time (3.3 months), there was a trend away from the 2 to 4 months range in the BTS era, with slightly more younger and older infants ( Table 2). in 2008, with the decline observed across all races 18 (Fig 2). There was a sudden decrease in number of cases after the 1994 ini- tiation of the BTS campaign, such that the SIDS rate decreased from 1. cases (N = 568) accounted for 60% of all sudden unexpected infant deaths (Table 1).

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