Table 2.

Clot formation time of recalcified blood in contact with polyurethane composites.

PU	Starch	Concentration	Absorbance at 570 nm **
			t = 10 min	t = 20 min	t = 40 min
Control			0.32 ± 0.04 a	0.39 ± 0.11 a	0.11 ± 0.04 a
P1	AL-0%		0.09 ± 0.03 a	0.08 ± 0.09 a	0.06 ± 0.02 a
	AL-N	1%	0.13 ± 0.05 a	0.09 ± 0.06 a	0.07 ± 0.04 a
		2%	0.18 ± 0.10 a	0.08 ± 0.06 a	0.12 ± 0.06 a
		3%	0.15 ± 0.09 a	0.06 ± 0.05 a	0.04 ± 0.01 a
	AL-Z	1%	0.24 ± 0.09 a	0.12 ± 0.05 a	0.07 ± 0.02 a
		2%	0.29 ± 0.15 a	0.07 ± 0.05 a	0.12 ± 0.05 a
		3%	0.20 ± 0.05 a	0.14 ± 0.08 a	0.11 ± 0.06 a
	p-values
	Starch		0.072	0.450	0.277
	Concentration		<0.001 *	0.001 *	0.047
	Starch/Concentration		0.624	0.829	0.417
Control			0.32 ± 0.04 a	0.39 ± 0.11 ace	0.11 ± 0.04 abc
P2	AL-0%		0.22 ± 0.16 a	0.08 ± 0.05 be	0.08 ± 0.07 ac
	AL-N	1%	0.14 ± 0.04 a	0.08 ± 0.03 bce	0.04 ± 0.01 a
		2%	0.27 ± 0.08 a	0.05 ± 0.02 be	0.06 ± 0.01 ab
		3%	0.19 ± 0.09 a	0.10 ± 0.06 bce	0.08 ± 0.02 abc
	AL-Z	1%	0.24 ± 0.09 a	0.07 ± 0.02 be	0.05 ± 0.01 a
		2%	0.33 ± 0.15 a	0.31 ± 0.17 ce	0.26 ± 0.06 bc
		3%	0.23 ± 0.14 a	0.15 ± 0.04 e	0.23 ± 0.06 c
	p-values
	Starch		0.362	0.022 *	0.004 *
	Concentration		0.207	<0.001 *	0.002 *
	Starch/Concentration		0.832	0.011 *	0.036 *
Control			0.32 ± 0.04 a	0.39 ± 0.11 a	0.11 ± 0.04 abcd
P3	AL-0%		0.19 ± 0.08 a	0.45 ± 0.17 a	0.08 ± 0.04 acd
	AL-N	1%	0.25 ± 0.11 a	0.33 ± 0.14 a	0.10 ± 0.03 abcd
		2%	0.16 ± 0.057 a	0.31 ± 0.16 a	0.09 ± 0.06 acd
		3%	0.16 ± 0.07 a	0.20 ± 0.04 a	0.12 ± 0.04 abcd
	AL-Z	1%	0.24 ± 0.07 a	0.22 ± 0.12 a	0.28 ± 0.08 bd
		2%	0.27 ± 0.01 a	0.20 ± 0.07 a	0.21 ± 0.04 cd
		3%	0.28 ± 0.03 a	0.23 ± 0.02 a	0.19 ± 0.04 d
	p-values
	Starch		0.064	0.407	0.005 *
	Concentration		0.091	0.019 *	0.038 *
	Starch/Concentration		0.231	0.676	0.122

** Samples with the same letter do not have a statistically significant difference. Samples with a different letters have significant differences. * Effects are statistically significant (p-value < 0.05).