Table 4.

The impact of selected indices on the frequency of acute coronary syndromes depending on the air pollution assessed as PM₁₀

Selected indices	Odds ratio	95% Confidence interval	P value
Non-winter weeks	0.959	0.938–0.982	0.0004
Males	0.987	0.977–0.997	0.01
Females	1.026	1.007–1.046	0.006
Prior cerebral stroke	1.012	0.974–1.051	0.539
Diabetes mellitus	0.987	0.971–1.004	0.14
Prior CABG	1.032	0.997–1.067	0.06
Prior PCI	0.989	0.977–1.001	0.08
Prior myocardial infarction	0.992	0.979–1.007	0.27
Smoking	0.969	0.952–0.986	0.0006
Hypertension	0.995	0.986–1.005	0.41
COPD	1.018	0.968–1.07	0.47
Multi-vessel disease	1.011	0.992–1.029	0.23
LMCA involvement	4.878	0.617–38.528	0.13
Multi-vessel disease and LMCA	1.02	0.972–1.07	0.41
Kidney failure	1.013	0.983–1.044	0.38

CABG coronary artery bypass grafting, COPD chronic obstructive pulmonary disease, LMCA left main coronary artery, PCI percutaneous coronary intervention