Hemoglobin A1c is associated with severity of coronary artery stenosis but not with long term clinical outcomes in diabetic and nondiabetic patients with acute myocardial infarction undergoing primary angioplasty

Table 3 Multi regression analysis of coronary artery stenosis in patients (a) without DM and (b) with DM

Factors	Coefficient	95% CI	SEM	P value
(a)
Average HbA_1c (%)	−0.308	−0.648 to 0.032	0.173	0.076
Age (years)	0.003	−0.009 to 0.015	0.006	0.630
GRACE score	0.000	−0.003 to 0.003	0.002	0.744
HR (bpm)	0.001	−0.006 to 0.008	0.003	0.755
Systolic BP (mmHg)	0.003	−0.007 to 0.013	0.005	0.573
DiastolicBP (mmHg)	−0.008	−0.023 to 0.007	0.008	0.282
FBG (mg/dL)	0.024	−0.032 to 0.081	0.029	0.397
CKMB (U/L)	−0.001	−0.004 to 0.001	0.001	0.185
LDL-C (mmol/L)	0.092	−0.060 to 0.245	0.078	0.234
Creatine (µmol/L)	0.005	−0.003 to 0.012	0.004	0.225
(b)
Average HbA_1c (%)	0.176	0.040 to 0.312	0.069	0.011
Age (years)	0.008	−0.013 to 0.030	0.011	0.454
DM duration (years)	−0.001	−0.037 to 0.035	0.018	0.954
GRACE score	0.004	−0.002 to 0.010	0.003	0.169
HR (bpm)	0.019	0.004 to 0.035	0.008	0.016
Systolic BP (mmHg)	0.000	−0.001 to 0.000	0.000	0.202
DiastolicBP (mmHg)	−0.011	−0.021 to −0.001	0.005	0.038
FBG (mg/dL)	0.183	0.115 to 0.251	0.034	0.000
CKMB (U/L)	−0.003	−0.007 to 0.001	0.002	0.160
LDL-C (mmol/L)	0.501	−0.465 to 1.468	0.489	0.307
Creatine (µmol/L)	0.027	−0.099 to 0.153	0.064	0.678

HbA _1c hemoglobin A_1c, DM diabetes mellitus, CI confidence interval, SEM standard error of measurement, GRACE the global registry of acute coronary events, HR heart rate, BP blood pressure, FBG fasting blood glucose, CKMB MB isoenzyme of creatine kinase, LDL-C low density lipoprotein-cholesterol

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