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Table 6 Significant modifiers of the association of hemoglobin A1c and glycemia with incidence of sternal wound complications

From: Hemoglobin A1c and preoperative glycemia as a decision tool to help minimise sternal wound complications: a retrospective study in OPCAB patients

Population Variable Interaction with P (interaction) Stratification Odds ratio (effect of HbA1c/glycemia) P (effect of HbA1c/glycemia)
All Age group HbA1c 0.021 <  70 years 1.41 (1.17;1.71) < 0.001
     ≥ 70 years 0.85 (0.57;1.25) 0.405
Diabetes Age group HbA1c 0.021 <  70 years 1.38 (1.11;1.70) 0.003
     ≥ 70 years 0.80 (0.52;1.23) 0.306
All Urgent surgery Glycemia 0.049 Urgent 1.03 (0.59;1.80) 0.914
     Not urgent 2.48 (1.26;4.88) 0.009
Diabetes Skeletonisation Glycemia 0.029 Skeletonised 4.83 (1.28;18.17) 0.020
     Not skeletonised 0.92 (0.47;1.80) 0.802
Diabetes BMI Glycemia 0.029 BMI ≥ 30 0.54 (0.20;1.46) 0.223
     BMI < 30 2.19 (1.01;4.76) 0.047
  1. BMI Body mass index
  2. P < 0.05 was considered significant