Table 1.

Crude and adjusted correlations.

Variables	Correlation	p-value	Partial Correlation	p-value
IL-10 vs HO-1*	0.392	<0.001	0.326	0.006
Haem vs HO-1†	0.145	0.232	0.07	0.571
HPX vs HO-1†	−0.231	0.05	−0.125	0.303
IL-10 vs APACHE II§	0.349	0.003	0.287	0.016
HO-1 vs APACHE II†	0.237	0.048	0.117	0.337

Pearson’s correlation and p-value calculated using log-transformed data. *partial correlation adjusted for haem and HPX, ^†partial correlation adjusted for IL-10, ^§partial correlation adjusted for HO-1.