Tom of MD- all 500 women had stillbirths. That implies a much larger population of healthy babies and makes the finding statistically significant.
Joeof CA2:47AM June 17, 2011
it is often more uncomfortable to sleep on the left, therefor, people who sleep on there left side are more likely to be have better cardiovascular health, and therefor less likely to have a stillbirth.
Oops, in 5 seconds I could have saved the researchers a lot of time and money.
Jsplinterof TN12:52PM June 15, 2011
-> Lets break this down...
"For the study, the researchers interviewed 155 women who delivered a stillborn baby at at least 28 weeks' gestation. They compared these women with 310 pregnant women with typical ongoing pregnancies."
-> So you have a sample size of ~500 women
The absolute increase in risk of stillbirth to any one woman remained small, however: Stillbirths occurred in 1.96 per 1,000 cases among women who slept on their left side, versus 3.93 per 1,000 cases for those who slept in the other positions, the investigators found.
->On left side you had ~2 stillbirth per 1000 cases
->Other positions (right and back) you had ~4 per 1000 cases
Since you we are only talking about 500 women, this study found that:
->Left: 1 stillbirth per 500 cases
->Other: 2 stillbirth per 500 cases
So all this "research" is biased on three women having stillbirth; one was on her left side, and two were "other" which includes (i assume) back, stomach, and right side.
Seems like there is no connection here IMHO.
Tomof MD9:45AM June 15, 2011
This is interesting. It doesn't hurt applying it immediately.
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Joe of CA 2:47AM June 17, 2011
Jsplinter of TN 12:52PM June 15, 2011
Tom of MD 9:45AM June 15, 2011
Bejaki of TX 9:40AM June 15, 2011