A report on the diagnosis of intermediate hyperglycemia in Korea: A pooled analysis of four community-based cohort studies

Jee Young Oh, Soo Lim, Dae Jung Kim, Nan Hee Kim, Dong Jun Kim, Sung Dae Moon, Hak Chul Jang, Young Min Cho, Kee Ho Song, Chul Woo Ahn, Yeon Ah Sung, Joong Yeol Park, Chol Shin, Hong Kyu Lee, Kyong Soo Park

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Abstract

Many studies show poor agreement between fasting plasma glucose (FPG)-based and 2-h postchallenge glucose (2-h PG)-based criteria to assess glucose metabolism. We examined the rate of agreement between FPG- and 2-h PG-based criteria in the diagnosis of intermediate hyperglycemia in four representative cohort studies in South Korea and compared the clinical characteristics and biochemical parameters in subjects with impaired fasting glucose (IFG) according to their FPG values. Of 6234 subjects from four population-based studies performed from 1993 to 2000, 4610 individuals with data from a 75 g oral glucose tolerance test (OGTT) and no previous history of diabetes were selected. We examined the concordance rate between the FPG and 2-h PG-based criteria. We also investigated the differences in the clinical characteristics and biochemical parameters between individuals with IFG according to their FPG values. The fasting and 2-h PG criteria had large discordance rates in the diagnosis of diabetes and impaired glucose tolerance (IGT) in Korean adults. When individuals with IFG were classified into stage 1 [5.6-6.1 mmol/L (100-109 mg/dL)] and stage 2 [6.1-7.0 mmol/L (110-125 mg/dL)] IFG, individuals with stage 2 IFG are more obese and had higher blood pressure and total cholesterol and triglycerides concentrations compared with those with stage 1 IFG. In addition, more individuals with stage 2 IFG were with diabetes as determined by a 2-h PG ≥ 11.1 mmol/L (14.1% vs. 1.9%) (P < 0.05). Considering the poorer metabolic profile and higher percentage of people with diabetes by OGTT, these data indicate that, in the Korean population, individuals with stage 2 IFG should be treated differently from those with stage 1 IFG. To detect more cases of diabetes, the OGTT is recommended for all individuals with stage 2 IFG and cases with stage 1 IFG with some additional risk factors for diabetes.

Original languageEnglish
Pages (from-to)463-468
Number of pages6
JournalDiabetes Research and Clinical Practice
Volume80
Issue number3
DOIs
Publication statusPublished - 2008 Jun 1

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Keywords

  • 2-h PG
  • Diabetes mellitus
  • Fasting plasma glucose
  • Impaired fasting glucose
  • Impaired glucose tolerance
  • Intermediate hyperglycemia
  • Oral glucose tolerance test
  • South Korea

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Cite this

Oh, J. Y., Lim, S., Kim, D. J., Kim, N. H., Kim, D. J., Moon, S. D., Jang, H. C., Cho, Y. M., Song, K. H., Ahn, C. W., Sung, Y. A., Park, J. Y., Shin, C., Lee, H. K., & Park, K. S. (2008). A report on the diagnosis of intermediate hyperglycemia in Korea: A pooled analysis of four community-based cohort studies. Diabetes Research and Clinical Practice, 80(3), 463-468. https://doi.org/10.1016/j.diabres.2008.01.022