Relationship between sleep position and risk of extreme cardiorespiratory events
George Lister1, Denis V Rybin, Theodore Colton
1Department of Pediatrics, UTSW Medical School, Dallas, TX 75390-9063, USA. george.lister@utsouthwestern.edu
Insights
Infants sleeping in prone or side positions are not at higher risk for extreme cardiorespiratory events. The supine sleeping position likely reduces sudden infant death syndrome risk through mechanisms other than preventing these monitored events.
Area of Science:
- Pediatrics
- Neonatal Care
- Sleep Medicine
Background:
- Sudden Infant Death Syndrome (SIDS) remains a concern for infant health.
- Understanding infant sleep positioning is crucial for risk reduction strategies.
Purpose of the Study:
- To investigate if prone or side sleeping positions increase the risk of extreme cardiorespiratory events in infants compared to the supine position.
Main Methods:
- A case-control study design was employed.
- 116 infants experiencing extreme cardiorespiratory events were compared to 231 matched controls.
- Sleep position was objectively determined using accelerometers.
Main Results:
- No increased likelihood of extreme cardiorespiratory events was found for infants sleeping in prone or side positions versus the supine position.
- Adjusted odds ratios (ORs) and 95% confidence intervals (CIs) were calculated.
- Conditional logistic regression accounted for the matched design and potential confounders.
Conclusions:
- The supine sleeping position appears to reduce SIDS risk through mechanisms independent of preventing extreme cardiorespiratory events.
- Peak incidence of severe cardiorespiratory events precedes the peak incidence of SIDS.
- Findings support current recommendations for supine infant sleep positioning.
Objective:
To determine whether infants at sleep in the prone side positions are at higher risk for an extreme cardiorespiratory event compared with infants at sleep in the supine position.
Study Design:
We used a case-control study to compare sleep position, determined with an accelerometer, in 116 infants during an extreme cardiorespiratory event with that in 231 matched control subjects (2 per case) who did not experience any extreme events during monitoring.
Results:
From calculation of adjusted ORs and 95% CIs, infants placed in the prone or side position were no more likely to experience an extreme cardiorespiratory event compared with infants at sleep in the supine position. We used conditional logistic regression to account for the matched design of the study and to adjust for potential confounders or effect-modifiers.
Conclusion:
These findings, coupled with our earlier observation that the peak incidence of severe cardiorespiratory events occurred before the peak incidence of sudden infant death syndrome, strongly suggest that the supine sleeping position decreases the risk of sudden infant death syndrome by mechanisms other than by decreasing extreme cardiorespiratory events detected by monitoring.
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