Table 2.
Univariate and multivariate cox regression models for the different factors
| Univariate Regression | Multivariate Regression | |||||
|---|---|---|---|---|---|---|
| HRa | 95% CI | P value | HRa | 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