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Journal of Diabetes Research
Volume 2016, Article ID 5827041, 9 pages
Research Article

A Comparison of hs-CRP Levels in New Diabetes Groups Diagnosed Based on FPG, 2-hPG, or HbA1c Criteria

1Division of Endocrinology & Metabolism, Department of Internal Medicine, Istanbul Medical Faculty, Istanbul University, 34093 Istanbul, Turkey
2Department of Clinical Biochemistry, Istanbul Medical Faculty, Istanbul University, 34093 Istanbul, Turkey
3Department of Public Health, Istanbul Medical Faculty, Istanbul University, 34093 Istanbul, Turkey
4Centre for Vascular Prevention, Danube-University Krems, 3500 Krems, Austria
5Department of Chronic Disease Prevention, National Institute for Health and Welfare, 00271 Helsinki, Finland
6Diabetes Research Group, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Received 3 July 2015; Revised 21 October 2015; Accepted 29 October 2015

Academic Editor: Francesco Chiarelli

Copyright © 2016 Yildiz Tutuncu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Fasting plasma glucose (FPG) and hemoglobin A1c (HbA1c) have been used to diagnose new-onset diabetes mellitus (DM) in order to simplify the diagnostic tests compared with the 2-hour oral glucose tolerance test (OGTT; 2-hPG). We aimed to identify optimal cut-off points of high sensitive C-reactive protein (hs-CRP) in new-onset DM people based on FPG, 2-hPG, or HbA1c methods. Data derived from recent population-based survey in Turkey (TURDEP-II). The study included 26,499 adult people (63% women, response rate 85%). The mean serum concentration of hs-CRP in women was higher than in men (). The people with new-onset DM based on HbA1c had higher mean hs-CRP level than FPG based and 2-hPG based DM cases. In HbA1c, 2-hPG, and FPG based new-onset DM people, cut-off levels of hs-CRP in women were 2.9, 2.1, and 2.5 mg/L [27.5, 19.7, and 23.5 nmol/L] and corresponding values in men were 2.0, 1.8, and 1.8 mg/L (19.0, 16.9, and 16.9 nmol/L), respectively (sensitivity 60–65% and specificity 54–64%). Our results revealed that hs-CRP may not further strengthen the diagnosis of new-onset DM. Nevertheless, the highest hs-CRP level observed in new-onset DM people diagnosed with HbA1c criterion supports the general assumption that this method might recognize people in more advanced diabetic stage compared with other diagnostic methods.