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Effect of ethnicity on HbA1c levels in individuals without diabetes: Systematic review and meta-analysis

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  • Gabriela Cavagnolli
  • Ana Laura Pimentel
  • Priscila Aparecida Correa Freitas
  • Jorge Luiz Gross
  • Joíza Lins Camargo

Abstract

Aims/Hypothesis: Disparities in HbA1c levels have been observed among ethnic groups. Most studies were performed in patients with diabetes mellitus (DM), which may interfere with results due to the high variability of glucose levels. We conducted a systematic review and meta-analysis to investigate the effect of ethnicity on HbA1c levels in individuals without DM. Methods: This is a systematic review with meta-analysis. We searched MEDLINE and EMBASE up to September 2016. Studies published after 1996, performed in adults without DM, reporting HbA1c results measured by certified/standardized methods were included. A random effects model was used and the effect size was presented as weighted HbA1c mean difference (95% CI) between different ethnicities as compared to White ethnicity. Results: Twelve studies met the inclusion criteria, totalling data from 49,238 individuals. There were significant differences between HbA1c levels in Blacks [0.26% (2.8 mmol/mol); 95% CI 0.18 to 0.33 (2.0 to 3.6), p

Suggested Citation

  • Gabriela Cavagnolli & Ana Laura Pimentel & Priscila Aparecida Correa Freitas & Jorge Luiz Gross & Joíza Lins Camargo, 2017. "Effect of ethnicity on HbA1c levels in individuals without diabetes: Systematic review and meta-analysis," PLOS ONE, Public Library of Science, vol. 12(2), pages 1-14, February.
    • Handle: RePEc:plo:pone00:0171315
    DOI: 10.1371/journal.pone.0171315
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    Cited by:

    1. Gunjeet Kaur & P V M Lakshmi & Ashu Rastogi & Anil Bhansali & Sanjay Jain & Yot Teerawattananon & Henna Bano & Shankar Prinja, 2020. "Diagnostic accuracy of tests for type 2 diabetes and prediabetes: A systematic review and meta-analysis," PLOS ONE, Public Library of Science, vol. 15(11), pages 1-19, November.
    2. Procolo Di Bonito & Maria Rosaria Licenziati & Domenico Corica & Malgorzata Wasniewska & Anna Di Sessa & Emanuele Miraglia del Giudice & Anita Morandi & Claudio Maffeis & Maria Felicia Faienza & Enza , 2023. "Which Is the Most Appropriate Cut-Off of HbA1c for Prediabetes Screening in Caucasian Youths with Overweight or Obesity?," IJERPH, MDPI, vol. 20(2), pages 1-9, January.

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