Related Experiment Video
Updated: Aug 23, 2026

The Use of Trace Eyeblink Classical Conditioning to Assess Hippocampal Dysfunction in a Rat Model of Fetal Alcohol Spectrum Disorders
Published on: August 5, 2017
Increased sibling mortality in children with fetal alcohol syndrome
Larry Burd1, Marilyn Klug, John Martsolf
1Department of Pediatrics, University of North Dakota, Grand Forks, ND 58203, USA. laburd@medicine.nodak.edu
Insights
Siblings of children with fetal alcohol syndrome (FAS) face a significantly higher mortality risk, experiencing a 530% increase. Maternal alcoholism is a key risk marker for increased mortality in these families.
Area of Science:
- Perinatology
- Pediatrics
- Public Health
Background:
- Fetal alcohol syndrome (FAS) is a leading preventable cause of birth defects.
- The impact of FAS on the mortality of siblings is not well-established.
- Maternal alcoholism poses risks beyond the diagnosed child.
Purpose of the Study:
- To compare all-cause mortality rates in siblings of children with FAS versus siblings of controls.
- To identify specific causes of increased mortality in siblings of FAS cases.
- To evaluate maternal alcoholism as a risk marker for sibling mortality.
Main Methods:
- Case-control study comparing mortality rates.
- Matched controls for siblings of children diagnosed with FAS.
- Analysis of mortality causes and age at death.
Main Results:
- Siblings of children with FAS exhibited 11.4% mortality versus 2.0% in controls (530% increase).
- Increased risk of death from infectious illness (OR=13.7) and SIDS (OR=10.2) observed in FAS siblings.
- Age of death was later in FAS siblings (1 day–7 years) compared to controls (1 day–4 years).
Conclusions:
- FAS diagnosis is a significant risk marker for sibling mortality, irrespective of sibling FAS status.
- Maternal alcoholism is a critical risk indicator for elevated mortality in affected families.
- Findings highlight the need for comprehensive family management and support for families affected by FAS.
Abstract:
We compared the rate of all-cause mortality in siblings of children diagnosed with fetal alcohol syndrome (FAS) with the siblings of matched controls. The siblings of children with FAS had increased mortality (11.4%) compared with matched controls (2.0%), a 530% increase in mortality. The age of death in case siblings deaths occurred later (between 1 day and 7 years) compared with the controls (1 day to 4 years) [odds ratio (OR)=2.4 (0.4-15.6)]. Siblings of children with FAS had increased risk of death due to infectious illness [OR=13.7 (1.2-361)] and sudden infant death syndrome compared with controls [OR=10.2 (1.2-75.1)]. A diagnosis of FAS is an important risk marker for mortality in the siblings of the proband even if they do not have FAS. Maternal alcoholism appears to be a useful risk marker for increased mortality risk in diagnosed cases and their siblings. This has important implications in the management of family members of children with FAS.
Related Concept Videos
Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Meiosis vs. Mitosis
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
Teratogenicity
Nondisjunction

