Table 3.

The modeling of risk factors which are effective in the leukemia survival rate by using Cox regression model

Leukemia type	Variables	Sub groups	Hazard ratio(HR)	95% CI for HR	P-value
Total (243 cases)	Initial Platelet	Normal Thrombocytopenia Thrombocytosis	1 2.41 4.54	- 1.1-4.9 1.4-13.9	- 0.016 0.008
	Number of relapses	0 1 ≥ 2	1 2.9 7.9	- 1.4-5.7 4.3-14.5	- 0.002 0.001
ALL (179 cases)	Initial Platelet	Normal Thrombocytopenia Thrombocytosis	1 2.8 4.01	- 1.2-6.4 1.14-14.1	- 0.012 0.03
	Number of relapses	0 1 ≥ 2	1 2.93 7.53	- 1.37-6.29 3.71-15.25	- 0.006 0.001
AML (64 cases)	Relapses	No Yes	1 5.18	- 1.6-16.5	- 0.005

ALL: Acute lymphoblastic leukemia; AML: Acute myeloblastic leukemia; CI: Confidence interval