Table 2. Biomarker levels according to outcome of MPI.

	Normal MPI	Abnormal MPI	p value
Total study population, N	199	44
NT-proBNP, ng/l	59 (28–143)	264 (109–929)	<0.001
YKL-40, ng/ml	51 (34–80)	67 (40–97)	0.03
IL-6, pg/ml	1.9 (1.2–2.8)	2.2 (1.6–4.0)	0.03
MMP-9, ng/ml	124 (81–183)	146 (82–220)	0.14
hsCRP, mg/l	2.0 (1.4–4.0)	2.2 (1.4–3.8)	0.58
Male population, N	84	34
NT-proBNP, ng/l	44 (13–82)	279 (102–948)	<0.001
YKL-40, ng/ml	48 (33–71)	67 (51–110)	0.005
IL-6, pg/ml	1.8 (1.3–2.7)	2.3 (1.5–5.1)	0.02
MMP-9, ng/ml	125 (91–174)	147 (84–218)	0.21
hsCRP, mg/l	1.8 (1.4–3.7)	2.2 (1.4–3.7)	0.43
Female population, N	115	10
NT-proBNP, ng/l	83 (41–167)	226 (124–1330)	<0.001
YKL-40, ng/ml	55 (35–88)	39 (33–66)	0.35
IL-6, pg/ml	1.9 (1.1–2.9)	2.1 (1.6–2.6)	0.86
MMP-9, ng/ml	121 (75–197)	130 (76–268)	0.47
hsCRP, mg/l	2.1 (1.4–4.1)	2.4 (1.4–5.2)	0.97

Presented as median (interquartile range). N, number; MPI, myocardial perfusion imaging; NT-proBNP, N-terminal fragment of the prohormone brain natriuretic peptide; IL-6, interleukine 6; MMP-9, matrix metalloproteinase 9; hsCRP, high sensitive C-reactive protein.