Table 1.

Relationship between neutrophil count and coronary flow reserve based on previous studies

Study	Neutrophil count	Echo-based CFR (mean ± SE)	CFR increase	SD of PET-MPR [22]	Patients required (p < 0.05, 80% power)
Stable CAD cohort
	5.8	2.10 ± 0.19		0.36
	4.6	2.35 ± 0.12	10.6%	0.36	33
	4.2	2.43 ± 0.11	13.5%	0.36	19
Post-MI cohort
	5.8	2.45 ± 0.07		0.36
	4.6	2.64 ± 0.05	7.2%	0.36	57
	4.2	2.70 ± 0.05	9.3%	0.36	33

Abbreviations: CFR Coronary flow reserve, PET Positron emission tomography, MPR Myocardial perfusion reserve, CAD Coronary artery disease, MI Myocardial infarction

The relationship between neutrophil count and echo-based CFR in both stable CAD and post-MI cohorts is shown. This demonstrates that lower neutrophil counts are associated with higher CFR