SIDS rates peaked in the late 1980s to early 1990s in many Western countries, including the US, Australia, and New Zealand, before public health campaigns (like "Back to Sleep") drastically reduced them by promoting safe sleeping positions. Specific peak years varied by country, with some, like Norway, seeing peaks around 1989, while Australia had a notable rate around 1991 before a sharp decline.
From 1983-1989 through 1990-1994, the SIDS rate for female infants declined 16.5% (from 114.7 to 95.8 per 100,000 live-born infants), and the rate for male infants declined 13.5% (from 166.0 to 143.6).
Infants (children under 1 year) had the highest rate of death in all jurisdictions in 2020, accounting for 59% of all child deaths in Australia. Rates of infant deaths from Sudden Infant Death Syndrome (SIDS) and undetermined causes ranged between 0.16 and 0.52 per 1,000 live births.
SIDS is less common after 8 months of age, but parents and caregivers should continue to follow safe sleep practices to reduce the risk of SIDS and other sleep-related causes of infant death until baby's first birthday. More than 90% of all SIDS deaths occur before 6 months of age.
Sudden infant death syndrome (SIDS) is the third leading cause of infant death for 2010 and the first leading cause of death among infants ages 1–12 months1. In 2010, there were a total of 3,610 or 0.9 sudden unexpected infant deaths (SUID) per 1,000 live births, accounting for 15 percent of all infant deaths2.
Parents, babysitters, day care workers and other caregivers should always put babies to sleep on their backs, instead of on their stomachs. Studies have shown that putting babies to sleep on their backs has reduced the number of SIDS cases by as much as a half.
Causes
Infants are at the highest risk for SIDS during their first 6 months of life. Most SIDS deaths occur when babies are between 1 and 4 months of age.
Sudden infant death syndrome (SIDS) is the term used to describe the sudden and unexplained death of an infant who's between 1 month and 1 year of age, even after thorough investigation.
Tummy Time for a Healthy Baby. Babies need tummy time! Although it does not directly reduce the risk of Sudden Infant Death Syndrome (SIDS), tummy time is an important way to help baby grow and develop.
Globally, infectious diseases, including pneumonia, diarrhoea and malaria, remain a leading cause of under-five deaths, along with preterm birth and intrapartum-related complications. The global under-five mortality rate declined by 61 per cent, from 94 deaths per 1,000 live births in 1990 to 37 in 2023.
However, it can happen wherever your baby is sleeping, such as when in a pushchair or even in your arms. It can also happen sometimes when your baby isn't sleeping – some babies have died in the middle of a feed.
Babies who sleep on an adult bed, couch, or armchair alone, with an adult, with a sibling, or with a pet are at very high risk for SIDS and sleep-related deaths from entrapment, suffocation, and strangulation.
Pacifiers may help reduce the risk of SIDS because sucking on a pacifier can bring baby's tongue forward, opening the airway a bit. In other cases, a pacifier doesn't allow a baby to sleep as deeply, reducing the risk the baby stops breathing.
The authors suspect that mothers may be more likely to try to calm restless male infants by putting them to sleep on their stomach, which may contribute to the gender difference in the rate of SIDS. Approximately 60 percent of SIDS victims are male, reports Horne.
White noise may also block out excess stimulation and thus, reduce stress levels in babies. But older claims that white noise can reduce the risk of SIDS [7] need more current research.
Conclusions: Apparent SIDS victims have a dismal prognosis; all infants presenting with apparent SIDS died, even the 30% whose final diagnosis was not SIDS.
Percent of mothers who breastfed were as follows: never (28.6%), 6 weeks (50.3%), 6 months (26.4%), 9 months (16.6%), 12 months (9.7%), 18 months (2.7%), 20 months (1%). We windsorized the 2% of mothers who reported breastfeeding longer than 24 months.
In cultures where there is no social pressure to wean, children usually stop breastfeeding or receiving their mother's milk between 2½ and 7 years old. In families that let it happen on its own, weaning happens very gradually, often without any fuss, process, or effort.
Results Fan use during sleep was associated with a 72% reduction in SIDS risk (adjusted odds ratio [AOR], 0.28; 95% confidence interval [CI], 0.10-0.77). The reduction in SIDS risk seemed more pronounced in adverse sleep environments.
SIDS has no symptoms or warning signs. Babies don't seem to suffer or struggle. They don't cry. Minor breathing or stomach problems might occur in the weeks before SIDS occurs.
Swaddling in child care
Some child care centers may have a policy against swaddling infants in their care. This is because of the increased risks of SIDS or suffocation if the baby rolls over while swaddled, in addition to the other risks of overheating and hip dysplasia.
Health care providers should encourage parents to do the following to reduce the risk of SIDS: Always place your baby on his or her back to sleep—for naps and at night. The back sleep position is the safest, and every sleep time counts.
SIDS, an unexplained infant death resulting from an unknown medical abnormality or vulnerability is usually classified a natural death. Accidental suffocation, a death resulting from full or partial airway obstruction causing death from oxygen deprivation and increased carbon dioxide, is classified as accidental.
Virtually all instances of sudden and unexplained death in infants that occur during a sleep period are un-witnessed, with only one published witnessed account [4].