Most SIDS Deaths Involve Multiple Risk Factors According to New Research

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The Back to Sleep (BTS) campaign, which kicked off in 1994, was wildly successful for the first ten years, reducing SIDS deaths by 50%. Then, rates of decline slowed and SIDS deaths have remained stable for some time. Many wonder why. If BTS is so successful, how come SIDS deaths are still the leading cause of postneonatal infant mortality in the United States and why haven’t these deaths declined more? Researchers conducted a new study in an attempt to figure this puzzle out by examining both intrinsic and extrinsic risk factors for SIDS. The researchers define an intrinsic risk factor for SIDS as a genetic or environmental factor – race, gender, prematurity or prenatal drug use for example – while extrinsic risks include physical stressors that may increase the risk of SIDS, such as co-sleeping, tummy sleeping, soft bedding, respiratory infections and smoking while co-sleeping. During the course of the study, researchers discovered that 99% of infants who died from SIDS had at least one intrinsic or extrinsic risk factor, 75% had at least one of each and a majority (57%) had at least two extrinsic risks and one intrinsic risk factor.

prevent sids, SIDS, sids prevention, sids research, sids risks, sleep study, co-sleeping and sids, back to sleep, soft bedding, sids factors

Image by Flickr User tamakisono

Although this new study is well-balanced, it could be taken the wrong way and add fuel to the already growing pro vs. con co-sleeping debate, because it’s true, this research does show that bed sharing is a SIDS risk factor. However, you have to keep things in perspective. Most coverage of this study shoots straight to co-sleeping as a major SIDS risk factor, but that’s not what these researchers are saying. In fact, the researchers point out that face-down sleep is still, even with BTS in place, the most significant risk factor for SIDS in this country. Other risk factors, such as sleeping on adult mattresses and bed-sharing, while important to pay attention to, are not as risky as face-down sleep. The researchers also point out that, “No evidence exists that more deaths are associated with bed-sharing in the BTS era, but rather a higher proportion is due to declining rates of prone sleep-related deaths.” What they mean is that these new risks aren’t new, we’re just better able to see those risks now that BTS is much more common. Furthermore, the researchers state that the highest rates of SIDS deaths associated with co-sleeping were also co-associated with mothers who smoke, meaning it’s likely the smoke that’s an issue, not bed-sharing.

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