Table 1

Histological composition per pass (A) and per-pass extracted clot area of each histological component (B)

	Total number (N)	Pass 1 (n=352)	Pass 2 (n=142)	Pass 3 (n=56)	Pass 4 (n=29)	Pass 5+ (n=33)	Test statistic (H)	DF	Significance (p<0.050*)
(A) Per-pass MSB composition (% of total)
Red blood cells	612	42.78%	39.06%	39.64%	30.86%	35.20%	11.644	4	0.020*
White blood cells	612	2.43%	2.56%	2.62%	3.08%	1.92%	1.988	4	0.738
Fibrin	612	29.68%	33.34%	31.31%	38.02%	25.23%	12.935	4	0.012*
Platelets/other	612	25.00%	24.77%	26.30%	27.73%	37.43%	15.977	4	0.003*
Collagen	612	0.10%	0.27%	0.14%	0.32%	0.22%	10.960	4	0.027*
(B) Per-pass extracted clot area per histological Component (mm ² )
Total area	612	41.15	39.01	47.89	27.49	28.90	10.730	4	0.030*
Red blood cells	612	21.63	19.12	23.68	10.95	10.49	34.418	4	0.000*
White blood cells	612	0.93	0.85	1.05	0.88	0.61	2.218	4	0.528
Fibrin	612	10.54	10.76	11.78	9.47	8.03	13.768	4	0.003*
Platelets/other	612	8.02	8.23	11.35	6.16	9.73	19.181	4	<0.001*
Collagen	612	0.03	0.06	0.02	0.03	0.04	5.533	4	0.137