Table 3.

Analysis of risk of death in a three-factor logistic regression model.

Factorial Feature		The Model Coefficient, b ± m	Significance Level of Difference of the Coefficient from 0, p Value	OR (95% CI)
Treatment	UFH therapeutic dose	Reference
	LMWH, therapeutic dose	0.59 ± 0.58	0.311	-
	LMWH, prophylactic dose	1.10 ± 0.55	0.046	3.01 (1.02–8.90)
Age, years		0.12 ± 0.05	0.030	1.13 (1.01–1.25)
D-dimer, µg/L		0.0006 ± 0.0002	0.017	1.001 (1.000–1.001)