From
The National SIDS Council (Australia):
1. Cot mattress contamination with the fungus S. brevicalis is rare, and no more common in SIDS mattresses than in other used mattresses.
2. There is no evidence for the generation of gases from phosphorus, arsenic and antimony from cot mattresses, by S. brevecaulis, when tested using conditions relevant to an infant’s cot. (The group did, however, identify laboratory conditions, wholly unlike those that could occur in an infant’s cot, in which added antimony is biovolatilised, but to the much less toxic trimethylantimony and not to stibine).
3. There is no evidence of poisoning by phosphine, arsine, or stibine (or bethylated derivatives) in infants who have died of SIDS.
4. Low amounts of antimony can be detected in samples from the majority of live infants, and even newborn infants: the concentrations in the tissues of SIDS infants were not different from those dying from known causes. There are a number of sources of antimony in the domestic environment other than the fire retardant in cot mattress materials.
5. We have found no evidence that the changing rates of sudden infant death correspond to the introduction and removal of antimony – and phosphorus – containing fire retardant in cot mattresses.
From
First Candle / SIDS Alliance (USA):
• There is no difference in antimony in babies that die of cot death and other babies;
• Antimony is found in most babies, even before birth (before they could have had any exposure to mattresses. It could come from maternal diet, but antimony is everywhere, including common household dust.
• No antimony was added to mattresses before 1988, and yet SIDS deaths were occurring pre-1988 at the rate of about 2,000 per year (now less than 500 per year.)
• The year after antimony was first added to mattresses, 1989, was the year that cot deaths began to decrease – at first a small decrease and then, after 1991 following campaigns to sleep babies on the back, a rapid decrease – cot deaths dropped in all by over 70% between 1988 and 1995.
• The theory claims that the decrease was due to publicizing advice to wrap mattresses is unfounded: as of 1993-1995, only 2% of babies were sleeping on wrapped mattresses; babies have also been found to die on wrapped mattresses.
• Cot death occurs in countries where no antimony has been added to mattresses.
• When comparing babies who die and babies who live, proportionately more of the babies who live sleep on PVC mattresses.
• According to the theory, death occurs because the toxic gas reduces acetylcholinesterase, leading to heart failure, but post mortem examinations of babies who die shows no reduction in acetylclolinesterase.
• The fungus, Scopulariopsis brevicaulis, that was said to be present on all cot mattresses and which was essential for the release of toxic gases, is actually hardly ever present on cot mattresses.