Chronic Kidney Disease Stage Is a Modulator on the Association between High-Sensitivity C-Reactive Protein and Coronary Vasospastic Angina

Table 1

Percentage of normal patients and patients with CAD and vasospasm according to chronic kidney disease stage.

	CKD stage 1	CKD stage 2	CKD stage 3	P value
	𝑁=245	𝑁=518	𝑁=156
Coronary artery disease	15 (6.1%)	35 (6.8%)	10 (6.4%)	0.998
Coronary vasospasm	122 (49.8%)	258 (49.8%)	78 (50%)
Normal	108 (44.1%)	225 (43.4%)	68 (43.6%)

Statistical significance based on chi-square test. CAD: coronary artery disease; CKD: chronic kidney disease.