Table S2. The median concentrations and ranges of three peptides and BDNF serum levels between CHD patients and healthy controls.

Variables	Controls [101]	CHD-D [156]	CHD+D [53]
Irisin (pg/mL)	213.1 (77.76–327.9)	203.7 (66.79–280.9)	158.1 (65.35–275.5)
Adropin (pg/mL)	357.3 (119.0–603.7)	289.3 (100.2–498.6)	216.9 (98.29–497.9)
Preptin (pg/mL)	333.7 (150.7–607.8)	318.8 (127.0–480.5)	302.5 (127.7–480.8)
BDNF (ìg/L)	7.471 (3.859–12.61)	4.933 (1.541–9.993)	4.065 (1.190–9.989)

CHD+D, CHD with depression; CHD-D, CHD without depression; CHD, coronary heart disease; BDNF, brain-derived neurotrophic factor.