Effects of Preoperative HbA1c Levels on the Postoperative Outcomes of Coronary Artery Disease Surgical Treatment in Patients with Diabetes Mellitus and Nondiabetic Patients: A Systematic Review and Meta-Analysis

Table 3

Meta-analysis of health-related outcomes according to preoperative HbA1c level after cardiac surgery for nondiabetic patients.

Outcome	Studies	Higher HbA1c level	Lower HbA1c level	Statistical method	Effect estimate
Mortality	3 [25, 28, 36]	458	3084	OR, random	2.23 [1.01, 4.90]
Myocardial infarction	2 [25, 28]	123	1786	OR, random	1.32 [0.27, 6.31]
Atrial fibrillation	2 [28, 36]	425	3057	OR, random	0.99 [0.74, 1.33]
Renal failure	2 [28, 36]	425	3057	OR, random	2.33 [1.32, 4.12]^#

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