Survival characteristics of Wilms Tumor, a reference developed from a longitudinal cohort study

Table 2 Univariate and multivariate cox regression models for the different factors

	Univariate Regression			Multivariate Regression
	HR^a	95% CI	P value	HR^a	95% CI	P value
Age (vs 3–8 years)
< 3	0.48	(0.33–0.69)	< 0.001	0.72	(0.49–1.05)	0.08
9–15	0.92	(0.45–1.90)	0.83	0.86	(0.42–1.77)	0.68
> 15	2.72	(1–7.42)	0.049	2.59	(0.95–7.05)	0.06
Summary Stage (vs Localized)
Distant	10.24	(6.09–17.23)	< 0.001	9.22	(5.42–15.69)	< 0.001
Regional	3.09	(1.74–5.47)	< 0.001	2.84	(1.6–5.07)	0. < 0.001
Unknown	4.97	(1.46–16.95)	0.01	4.98	(1.46–17.01)	0.01
Laterality (vs Left)
Right	0.73	(0.52–1.04)	0.08
Bilateral	1.41	(0.81–2.45)	0.23
Sex (vs Female)
Male	0.96	(0.7–1.34)	0.83
Chemotherapy (vs Yes)
NO	*1.18*	*(0.67–2.09)*	*0.57*
Race (vs White)
American Indian/Alaska Native	0.95	(0.23–3.85)	0.94
Asian/Pacific Islander	1.42	(0.72–2.8)	0.31
Black	1.06	(0.68–1.63)	0.80
Unknown	0.85	(0.12–6.08)	0.87

^aThis number represents the hazard ratio for Cancer-specific causes for the above co-variables. All statistical tests were two-sided

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