Study suggests mechanism for recurrent sudden infant death syndrome

December 15, 2005

Women who have a baby that dies of sudden infant death syndrome (SIDS) have an increased risk of preterm delivery and complications in subsequent pregnancies, concludes an article in this week's issue of The Lancet. As these complications are risk factors for SIDS this could explain why some women have recurrent SIDS in their family, state the authors.

SIDS is the most important single cause of infant mortality in the developed world. Gordon Smith (University of Cambridge, UK) and colleagues investigated whether women whose infants die from SIDS would be more likely to have complications in their future pregnancies. They looked at data on maternity-hospital discharge and infant deaths for over 258,000 women who had consecutive births in Scotland between 1995 and 2001.

The researchers found that women whose previous infant died were two to three times more likely to deliver an infant who was small for their gestational age, and two to three times more likely to have a preterm delivery. Women who had babies which were small for their age or delivered preterm had a two-fold increased risk of SIDS occurring in their subsequent births. The investigators found that the association persisted even after they took into account other possible risk factors for SIDS, such as smoking status, maternal age, and marital status.

Professor Smith states: "Our findings suggest a mechanism that would predispose a women to recurrent cases of SIDS and provide direct evidence that the risk of SIDS after a given birth is not statistically independent of whether the previous infants died."
Contact: Professor Gordon C S Smith, Head of Department, Department of Obstetrics and Gynaecology, Cambridge University, Box 223 The Rosie Hospital, Robinson Way, Cambridge, CB2 2SW, UK. T) 07966474835 / 01223763888


Related Risk Factors Articles from Brightsurf:

Early life risk factors predict higher obesity and cardiometabolic risk
Early life risk factors in the first 1000 days cumulatively predict higher obesity and cardiometabolic risk in early adolescence, according to new research led by the Harvard Pilgrim Health Care Institute.

Insomnia identified as a new risk factor for type 2 diabetes in new study which also confirms many other risk and protective factors
A new 'global atlas' study published in Diabetologia (the journal of the European Association for the Study of Diabetes [EASD]) is the first to identify insomnia as a risk factor associated with increased risk of developing type 2 diabetes (T2D).

Lung-specific risk factors may increase hip fracture risk in individuals who smoke
Smoking has been linked to a higher risk of bone fractures.

Factors associated with firearm suicide risk
Researchers compared the risk of suicide by firearm based on sociodemographic characteristics of US adults.

Modifiable risk factors contribute to gout
Elevated urate in the blood (hyperuricemia) is a precursor of gout, which is the most common form of inflammatory arthritis worldwide.

Social risk factors and readmission penalties
New research shows that US safety net hospitals could benefit substantially from a new model that accounts for social risk factors like poverty and living in a disadvantaged neighborhood in determining how the federal government penalizes hospitals financially for their readmission rates.

AI study of risk factors in type 1 diabetes
In combination with conventional statistical methods, artificial intelligence (AI) has now been used in a study of risk factors in type 1 diabetes.

Stroke risk factors on the rise in Native-Americans
Stroke risk factors such as high blood pressure, diabetes, heart disease and smoking are common and on the rise among Native-Americans with clot-caused stroke.

Discovery of the first common genetic risk factors for ADHD
A global team of researchers has found the first common genetic risk factors associated with attention deficit hyperactivity disorder (ADHD), a complex condition affecting around one in 20 children.

Military risk factors for dementia
In recent years, there has been growing discussion to better understand the pathophysiological mechanisms of traumatic brain injury and post-traumatic stress disorder and how they may be linked to an increased risk of neurodegenerative diseases including Alzheimer's disease in veterans.

Read More: Risk Factors News and Risk Factors Current Events is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to