Table 9.

Comparison of effect indexes between stable SCH patients and control group (mean ± SD).

Variable	SCH (stable)	Control group	t	P
	n = 31	n = 40
Venous pH	7.357 ± 0.037	7.284 ± 0.051	6.722	<0.001*
PvO2 (mm Hg)	60.03 ± 32.12	30.00 ± 10.72	5.539	<0.001*
PvCO2 (mm Hg)	48.45 ± 8.53	58.33 ± 11.02	−4.254	<0.001*
Lactic acid (mol/L)	2.28 ± 0.65	3.55 ± 1.27	−5.027	<0.001*
K+ (mol/L)	3.99 ± 0.35	3.54 ± 0.25	6.228	<0.001*
FBG (mol/L)	5.30 ± 1.30	4.05 ± 0.93	4.728	<0.001*
SOD (U/mL)	164.90 ± 21.47	196.38 ± 14.85	−6.972	<0.001*

Independent-samples t-test.

^*p < 0.01.