Table 2.

Univariate model of patient characteristics and overall survival. Note, a lower hazard ratio implies a decreased risk of death.

	Acute Lymphoblastic Leukemia			Acute Myeloid Leukemia
Characteristic	HR (95% CI)	Pairwise P	Overall P	HR (95% CI)	Pairwise P	Overall P
Sphere Distance to Center
≤10 Miles v. >50 Miles	1.04 (0.96–1.13)	0.29	<.0001	1.05 (0.98–1.13)	0.20	0.0066
10–20 Miles v. >50 Miles	0.76 (0.69–0.84)	<.0001		0.94 (0.87–1.03)	0.18
20–50 Miles v. >50 Miles	0.76 (0.70–0.84)	<.0001		0.93 (0.86–1.01)	0.10
Charlson-Deyo Score
0 v. 3	0.30 (0.20–0.43)	<.0001	<.0001	0.41 (0.31–0.56)	<.0001	<.0001
1 v. 3	0.53 (0.35–0.79)	0.0018		0.61 (0.44–0.84)	0.0023
2 v. 3	0.91 (0.56–1.50)	0.71		0.92 (0.62–1.35)	0.66
Gender
Male v. Female	1.16 (1.09–1.24)	<.0001	<.0001	1.02 (0.97–1.08)	0.4276	0.4276
Race
African American v. Caucasian	1.57 (1.41–1.74)	<.0001	<.0001	1.33 (1.23–1.44)	<.0001	<.0001
Asian v. Caucasian	0.95 (0.80–1.12)	0.54		0.97 (0.85–1.10)	0.62
Hispanic/Latinos v. Caucasian	1.48 (1.38–1.59)	<.0001		0.94 (0.86–1.01)	0.11
Native American v. Caucasian	1.72 (1.25–2.37)	0.0009		1.03 (0.76–1.40)	0.84
Others v. Caucasian	0.91 (0.68–1.23)	0.54		0.74 (0.55–1.00)	0.0477
Insurance
Government v. Private	1.27 (1.19–1.36)	<.0001	<.0001	1.20 (1.13–1.27)	<.0001	<.0001
Not Insured v. Private	2.59 (2.32–2.89)	<.0001		1.39 (1.25–1.54)	<.0001
Community Median Income
< $38,000 v. ≥ $63,000	1.72 (1.57–1.88)	<.0001	<.0001	1.32 (1.21–1.42)	<.0001	<.0001
$38,000– $63,000 v. ≥ $63,000	1.35 (1.26–1.46)	<.0001		1.17 (1.10–1.26)	<.0001
Age
≥18 v. <18	5.56 (5.22–5.92)	<.0001	<.0001	1.56 (1.46–1.67)	<.0001	<.0001
Rural
Yes v. No	0.89 (0.67–1.19)	0.43	0.4325	0.97 (0.77–1.21)	0.76	0.76