Random Plasma Glucose in Serendipitous Screening for Glucose Intolerance: Screening for Impaired Glucose Tolerance Study 2
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Background With positive results from diabetes prevention studies, there is interest in convenient ways to incorporate screening for glucose intolerance into routine care and to limit the need for fasting diagnostic tests. Objective The aim of this study is to determine whether random plasma glucose (RPG) could be used to screen for glucose intolerance. Design This is a cross-sectional study. Participants The participants of this study include a voluntary sample of 990 adults not known to have diabetes. Measurements RPG was measured, and each subject had a 75-g oral glucose tolerance test several weeks later. Glucose intolerance targets included diabetes, impaired glucose tolerance (IGT), and impaired fasting glucose(110) (IFG(110); fasting glucose, 110-125 mg/dl, and 2 h glucose < 140 mg/dl). Screening performance was measured by area under receiver operating characteristic curves (AROC). Results Mean age was 48 years, and body mass index (BMI) was 30.4 kg/m(2); 66% were women, and 52% were black; 5.1% had previously unrecognized diabetes, and 24.0% had any "high-risk" glucose intolerance (diabetes or IGT or IFG(110)). The AROC was 0.80 (95% CI 0.74-0.86) for RPG to identify diabetes and 0.72 (0.68-0.75) to identify any glucose intolerance, both highly significant (p < 0.001). Screening performance was generally consistent at different times of the day, regardless of meal status, and across a range of risk factors such as age, BMI, high density lipoprotein cholesterol, triglycerides, and blood pressure. Conclusions RPG values should be considered by health care providers to be an opportunistic initial screening test and used to prompt further evaluation of patients at risk of glucose intolerance. Such "serendipitous screening" could help to identify unrecognized diabetes and prediabetes.
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Better test characteristics appear to be provided by measuring random plasma glucose or glucose 1 h after a 50-g oral glucose challenge.
“Although A1C screening may be of limited value, better test characteristics appear to be provided by measuring random plasma glucose (25) or glucose 1 h after a 50-g oral glucose challenge (16); either could be obtained opportunistically during office visits, at any time of day, and without a prior fast.”
From Screening for Diabetes and Pre-Diabetes With Proposed A1C-Based Diagnostic Criteria (2010) · cites this paper as [25]
The Results and Discussion report that random plasma glucose screened for undiagnosed diabetes with an AROC of 0.80 and performed well regardless of meal status or time of day; the Protocol says it required no prior fast. The copy does not establish that its test characteristics are better than A1C screening. The separate 50-g challenge claim is attached to citation 16, not this source. (LLM, conf=0.82)
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Cited by
Sorted by citations
Ziemer, D. C., Kolm, P., Weintraub, W. S., Vaccarino, V., Rhee, M. K., Twombly, J. G., Narayan, K. M. V., Koch, D. D., & Phillips, L. S. (2010) · Annals of Internal Medicine · doi:10.7326/0003-4819-152-12-201006150-00004 · Cited by 326 · see citing works
Self-citationScreening for Diabetes and Pre-Diabetes With Proposed A1C-Based Diagnostic Criteria
Olson, D. E., Rhee, M. K., Herrick, K., Ziemer, D. C., Twombly, J. G., & Phillips, L. S. (2010) · Diabetes Care · doi:10.2337/dc10-0433 · Cited by 234 · see citing works
Self-citation
- Authors
- Ziemer, D. C., Kolm, P., Foster, J. K., Weintraub, W. S., Vaccarino, V., Rhee, M. K., Varughese, R. M., Tsui, C. W., Koch, D. D., Twombly, J. G., Venkat Narayan, K. M., & Phillips, L. S.
- Affiliations
- Emory University (US)
- Corresponding author
- Phillips, Lawrence S.
- Venue
- Journal of General Internal Medicine
- Published
- 2008-03-12
- Volume
- 23
- Issue
- 5
- Pages
- 528-535
- ISSN
- 0884-8734 (ISSN-L)
- 1525-1497
- PMC
- PMC2324161
- OpenAlex
- W2045026566
- Cited by
- 56
- References
- 7
- Citations by year
- 2024: 1 · 2023: 2 · 2022: 2 · 2021: 1 · 2020: 3 · 2019: 3 · 2018: 4 · 2017: 4 · 2016: 2 · 2015: 6 · 2014: 6 · 2013: 5 · 2012: 1
- FWCI
- 3.87
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Journal of General Internal Medicine (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- American Diabetes Association
- National Institutes of Health (UL1TR000454)
- National Institute of Diabetes and Digestive and Kidney Diseases (DK0-66204, DK062668, DK07298, F32DK062668, R18DK066204, T32DK007298)
- National Center for Research Resources (RR00039, RR017643, K12RR017643, M01RR000039)
- National Center for Advancing Translational Sciences
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes, Cardiovascular Risks, and Lipoproteins
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
- Keywords
- random blood glucose, impaired glucose tolerance, impaired fasting glucose, prediabetes, diabetes screening, opportunistic screening, oral glucose tolerance test, diagnostic accuracy, undiagnosed diabetes
- MeSH terms
- Black or African American, Blood Glucose, Cross-Sectional Studies, Diabetes Mellitus, Type 2, Female, Glucose Tolerance Test, Humans, Male, Mass Screening, Middle Aged, Glucose Intolerance, White People
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