Table 3.

Relationship between d-dimer levels and survival in different models.

Variable	Crude model	P	Model 1	P
	HR (95% CI)		HR (95% CI)
d-Dimer levels ≤0.5 mg/L	1		1
d-dimer levels >0.5 mg/L	1.55 (1.23, 1.95)	0.0002	1.54 (1.19, 1.98)	0.0010
N	651		651

Crude model: no adjustments.

Model l: adjusted for age, sex, smoking history, clinical stage, histological diagnosis, degree of differentiation, mutation status, number of metastatic organs, number of treatment lines, and treatment approach.

HR, hazard ratio; CI, confidence interval.