Association of P2Y12 Gene Promoter DNA Methylation with the Risk of Clopidogrel Resistance in Coronary Artery Disease Patients

Table 4

Comparison of P2Y12 methylation levels between cases and controls in subgroup of current smoking or not.

	Current smoking			No current smoking
	Cases (𝑛=19); Mean ± s.e.	Controls (𝑛=21); Mean ± s.e.	𝑃 value	Cases (𝑛=30); Mean ± s.e.	Controls (𝑛=36); Mean ± s.e.	𝑃 value
P2Y12 CpG1, (%)	38.53±6.87	44.90±10.03	0.026	46.33±12.05	44.94±9.04	0.598
P2Y12 CpG2, (%)	34.00±5.30	37.33±7.35	0.112	38.90±8.15	37.29±6.70	0.384