Day	Sepsis	Severe Sepsis	Septic Shock
% expression of surface TREM-1 on neutrophils
1	37.25	50.71	73.44*
3	55.09	47.51	64.64*
5	57.96	61.71	69.95*
7	68.21	51.13	79.27*
% expression of surface TREM-1 on monocytes
1	35.31	38.33	41.44
3	48.80	42.88	48.98
5	47.93	37.72	44.80
7	65.64	44.63	44.85
Concentration of sTREM-1 (pg/mL)
1	5.37	97.59**	8.93
3	7.80	109.41**	31.25
5	4.12	98.31**	9.52
7	4.22	98.48**	5.99