Table 2. Laboratory findings for controls, all patients with CO poisoning, and those with 1 month follow-up.

Comparisons among the control group, all patients with CO exposure, patients with follow-up results at 1 month and GDS = 1, and those where 1-month GDS was >1. Rows demonstrate age, % male, plasma GSN, flow cytometry results including MPs/μl, % of MPs expressing various protein markers specific to different cells including neutrophils (CD66b), endothelium (CD146), platelets (CD41a), and neutrophils (PMN) % expressing protein values above a minimum threshold for CD18, MPO, pGSN, and CD41a [indicative of platelet-neutrophil interaction as described previously (15)]. Data are mean ± SD. Statistical comparisons were made between control and all 150 patients with CO poisoning and values with P < 0.05 (t test) indicated by +, and between patients with good outcome versus neurological sequelae with P < 0.05 indicated by *. NS, not significant.

	Control (n = 150)	All CO (n = 150)	CO-good (n = 65)	CO-DNS (n = 33)
Age (years)	45.3 ± 16.3	47.9 ± 17.2 NS	44.4 ± 15.0	54.4 ± 19.4*
% Male	65.3 ± 47.8	65.3 ± 47.8 NS	63.2 ± 48.6	50.0 ± 50.8
pGSN (μg/ml)	178.1 ± 161.5	11.6 ± 11.7+	13.4 ± 16.4	11.6 ± 6.8
MPs/μl	1100 ± 447	1423 ± 489+	1485 ± 560	1431 ± 435
% CD66b	12.6 ± 5.8	16.6 ± 7.3+	17.2 ± 0.9	16.3 ± 6.7
% CD146	26.4 ± 10.6	26.7 ± 8.8+	27.0 ± 9.8	24.3 ± 7.5
% TSP	11.3 ± 4.5	13.6 ± 6.1+	13.6 ± 5.8	14.0 ± 6.9
% CD41	6.8 ± 2.4	7.6 ± 7.6 NS	7.8 ± 7.8	7.0 ± 2.1
% TMEM	29.4 ± 4.5	31.5 ± 4.9+	32.5 ± 4.7	30.5 ± 6.4
% F-actin	17.1 ± 2.0	20.3 ± 9.0	20.1 ± 4.5	20.3 ± 5.6
PMN % CD18	4.2 ± 5.2	7.2 ± 4.7+	7.2 ± 5.0	6.6 ± 3.2
PMN % MPO	4.2 ± 3.8	8.4 ± 4.7+	9.8 ± 5.0	9.0 ± 4.4
PMN % CD41	5.9 ± 4.2	9.6 ± 4.4+	9.7 ± 3.8	10.2 ± 5.3
PMN % pGSN	5.0 ± 2.0	4.5 ± 2.9 NS	5.2 ± 3.3	4.6 ± 2.8