Table 2.
Univariate survival statistics
| Univariate survival | Median (months) | 1 yr (%) | 3 yr (%) | 5 yr (%) | p |
|---|---|---|---|---|---|
| Overall survival | |||||
| N = 2582 | 15.15 | 59.49 | 21.24 | 12.95 | |
| Univariate demographics | |||||
| Facility type | <0.0001 | ||||
| Academic | 16.33 | 62.19 | 23.04 | 14.29 | |
| Comprehensive | 14.00 | 57.09 | 19.58 | 11.78 | |
| Community | 12.85 | 53.39 | 20.48 | 11.89 | |
| Other | 10.91 | 40.10 | 12.13 | 6.07 | |
| Insurance group | <0.0001 | ||||
| Medicare | 13.77 | 55.18 | 17.82 | 10.71 | |
| Private | 17.48 | 65.47 | 25.95 | 16.16 | |
| Uninsured/other | 14.03 | 57.02 | 19.47 | 11.28 | |
| Univariate tumor characteristics | Median (months) | 1 yr (%) | 3 yr (%) | 5 yr (%) | p |
|---|---|---|---|---|---|
| Analytic stage | <0.0001 | ||||
| 1 | 20.67 | 72.79 | 32.37 | 22.44 | |
| 2 | 16.00 | 62.20 | 22.64 | 13.16 | |
| 3 | 12.71 | 53.57 | 14.70 | 8.31 | |
| 4 | 8.15 | 34.61 | 8.47 | 5.42 | |
| Grade (N = 2386) | <0.0001 | ||||
| 1 | 25.76 | 74.80 | 39.87 | 27.12 | |
| 2 | 15.61 | 61.72 | 21.51 | 12.56 | |
| 3 | 12.06 | 50.22 | 14.05 | 9.20 | |
| 4 | 10.91 | 35.19 | 4.40 | 0.00 | |
| Tumor size (N = 2332) | <0.0001 | ||||
| <2 cm | 23.13 | 70.87 | 35.00 | 25.78 | |
| 2–5 cm | 15.67 | 61.49 | 21.11 | 12.01 | |
| >5 cm | 11.50 | 47.33 | 14.18 | 8.83 |
| Univariate tumor characteristics | Median (months) | 1 yr (%) | 3 yr (%) | 5 yr (%) | p |
|---|---|---|---|---|---|
| Positive nodes (N = 2411) | <0.0001 | ||||
| 0 | 18.92 | 67.77 | 29.19 | 19.77 | |
| 1-3 | 14.46 | 57.68 | 18.76 | 10.42 | |
| >3 | 12.52 | 51.69 | 12.60 | 5.42 | |
| Nodes ratio (N = 2370) | <0.0001 | ||||
| 0 | 19.29 | 68.19 | 29.37 | 19.91 | |
| 0.01–0.14 | 15.44 | 61.60 | 20.40 | 13.08 | |
| 0.15–0.29 | 14.46 | 58.22 | 15.51 | 6.93 | |
| 0.30–1 | 11.83 | 49.49 | 14.92 | 7.26 | |
| Surgical margin (N = 2457) | <0.0001 | ||||
| Negative | 16.79 | 63.71 | 24.36 | 15.30 | |
| Micro positive | 11.96 | 49.16 | 13.05 | 7.80 | |
| Not specified | 11.89 | 49.31 | 14.39 | 7.38 | |
| Macro positive | 8.08 | 35.71 | 4.76 | 4.76 |
| Univariate adjuvant therapy | Median (months) | 1 yr (%) | 3 yr (%) | 5 yr (%) | p |
|---|---|---|---|---|---|
| Adjuvant Rx (N = 2386) | <0.0001 | ||||
| Chemo + Rads | 19.09 | 71.43 | 27.79 | 16.83 | |
| Chemo | 15.97 | 63.07 | 22.12 | 14.20 | |
| Rads | 12.85 | 51.88 | 8.65 | 5.40 | |
| No adjuvant Rx | 11.73 | 48.79 | 17.43 | 10.38 |
| Univariate continuous | Unit | Hazard ratio | 95% Confidence interval | p |
|---|---|---|---|---|
| Age | ||||
| 10 years | 1.125 | 1.083–1.170 | <0.0001 | |
| Distance to hosp (N = 2495) | ||||
| 10 fold increase in distance | 0.931 | 0.867–0.999 | 0.0474 | |
| Yr of diagnosis | ||||
| 1 year | 0.981 | 0.965–0.997 | 0.0222 |
*Paired comparisons are statistically significant after controlling for multiple comparisons when p < 0.0170 for 3 comparisons and p < 0.0127 for 4 comparisons. Thus, note that facility type “Other vs. Academic” is not statistically significant.