Table 4.

PCT levels (ng/mL) of patients with different degrees of ARDS in the ARDS+MODS group

Group	n	Hospital admission time (d)
		7	14	21	28
Mild ARDS	8	2.02±0.75	2.56±1.67	3.25±1.87	2.87±0.52
Moderate ARDS	10	4.25±0.79**	5.68±0.89**	6.05±0.65**	5.15±0.49**
Severe ARDS	6	5.02±0.85**,##	6.09±0.54**,##	5.45±0.57**,##	4.15±0.57**,##

Compared with the mild ARDS group:

^** P<0.01;

compared with the moderate ARDS group:

^## P<0.01.