| How the method used to measure refractive error is expected to affect statistical results. | |
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MedLine Citation:
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PMID: 3688178 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Values of refractive error (RE) observed for subjects and groups depend on the degree to which the measurement method used relaxes accommodation. This affects statistics calculated on RE measurements in predictable ways. Comparing noncycloplegic (NC) with cycloplegic (C) methods, myopia is expected to be more frequent, differences between group means should be less, and correlations and regressions relating RE to other variables may be reduced slightly. Tests based on the categorization of RE will show weaker associations with putative influencing variables. The implications of this are discussed for comparing published studies and choosing measurement methods in epidemiological and genetic studies. |
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Authors:
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J C Bear |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: American journal of optometry and physiological optics Volume: 64 ISSN: 0093-7002 ISO Abbreviation: Am J Optom Physiol Opt Publication Date: 1987 Oct |
Date Detail:
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Created Date: 1988-01-19 Completed Date: 1988-01-19 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0417614 Medline TA: Am J Optom Physiol Opt Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 754-61 Citation Subset: IM |
Affiliation:
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Division of Community Medicine and Behavioural Sciences, Memorial University of Newfoundland, St. John's, Canada. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Humans Mydriatics / diagnostic use Optometry / methods* Refractive Errors / diagnosis* Statistics as Topic |
| Chemical | |
Reg. No./Substance:
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0/Mydriatics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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