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Diagnostic accuracy of glycated hemoglobin compared with oral glucose tolerance test for diagnosing diabetes mellitus in Chinese adults: a meta-analysis.

Xu, Na; Wu, Hongfang; Li, Daiqing; Wang, Jianhua.
Diabetes Res Clin Pract; 106(1): 11-8, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24857263

AIMS:

A meta-analysis was conducted to evaluate the diagnostic value of glycated hemoglobin (HbA1c) ≥6.5% (48mmol/mol) for diabetes in Chinese adults.

METHODS:

Oral glucose tolerance test (OGTT) was selected as the reference standard. PubMed, EMBASE, CNKI, Wanfang Data, and VIP were searched to obtain all diagnostic tests with HbA1c ≥6.5% (48mmol/mol) for diabetes in Chinese adults published between January 2003 and October 2013. The qualities of the included studies were assessed by using the Quality Assessment of Diagnostic Accuracy Studies 2 tool. Meta-DiSc software was used to conduct a comprehensive quantitative assessment, and summary receiver operating characteristic (sROC) curves were obtained.

RESULTS:

A total of 9 studies with 25,932 subjects were included. Pooled sensitivity was 0.518, pooled specificity 0.956, pooled positive likelihood ratio 19.007 and pooled negative likelihood ratio was 0.477. Pooled diagnostic odds ratio was 40.631. AUCsROC was 0.929.

CONCLUSION:

Compared with OGTT, using HbA1c ≥6.5% (48mmol/mol) to diagnose diabetes in Chinese adults exhibited high specificity and low sensitivity and would have failed to diagnose 48.7% of newly diagnosed diabetes. The diagnostic HbA1c value could be reduced to improve sensitivity. Long-term prospective studies are required to establish an appropriate HbA1c value as a diagnostic criterion for diabetes in China.
Selo DaSilva