Table 4. Pearson correlation between VOCs and biochemical parameters.

VOCs	Serum bilirubin		Serum albumin		Prothrombin activity
	r	p	r	p	r	p
Ketones
2-butanone	0.733	0.007	−0.187	0.560	−0.412	0.183
2- or 3-pentanone	0.531	0.075	−0.095	0.769	−0.368	0.239
C8-ketone	0.895	<0.001	−0.172	0.593	−0.642	0.024
C9-ketone	−0.106	0.743	0.213	0.506	0.033	0.919
Terpenes
Monoterpenes	0.693	0.012	−0.164	0.610	−0.592	0.042
Terpene related	0.635	0.026	−0.089	0.784	−0.407	0.190
S and N containing compounds
Sulfoxide-compound	0.205	0.522	0.053	0.870	−0.013	0.968
S-compound	−0.432	0.161	0.010	0.976	0.106	0.742
NS-compound	0.558	0.06	0.042	0.897	−0.298	0.347
N-compound	−0.510	0.091	0.411	0.184	0.499	0.099
Alcohol
Methanol	0.578	0.045	−0.210	0.512	−0.350	0.265
Heptadienol	0.618	0.032	−0.060	0.853	−0.540	0.070

In bold significant correlation (p<0.05).