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Asthma and Infant Bedding

A guide for health professionals

Current suggestions
Identifying high-risk infants
Reducing HDM levels in bedding
Feathers vs synthetic
Volatile organic compounds
Combining interventions
Levels of evidence 
References
Content created MAR 2005
Content updated MAR 2005

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NextBackLevels of evidence

I           Evidence obtained from a systematic review of all relevant randomised controlled trials
II Evidence obtained from at least one properly designed randomised controlled trial
III-1 Evidence obtained from well-designed pseudo-randomised controlled trials (alternate allocation or some other method)
III-2 Evidence obtained from comparative studies with concurrent controls and allocation not randomised (cohort studies), case-control studies, or interrupted time series with a control group
III-3 Evidence obtained from comparative studies with historical control, two or more single-arm studies, or interrupted time series without a parallel control group
IV Evidence obtained from case series, either post-test or pre-test and post-test  

These levels of evidence ratings have been adapted from US Preventive Services Task Force (1989) Guide to clinical preventive services: an assessment of the effectiveness of 169 interventions (ed M Fisher), Williams and Williams, Baltimore, Appendix A, p 388.

Source: NHMRC
A guide to the development, implementation and evaluation of clinical practice guidelines.

References

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