Table 4.
Hazard ratios and 95% CI for all stages and T4 stage only OPC patients diagnosed in 1997, 2004 and 2009 using SEER POC (weighted data).
| Hazard Ratio 95 CI) | |||
|---|---|---|---|
|
| |||
| Characteristics | All Stages n= (787) |
T4 Stage Only n= (182) |
|
| Year of diagnosis | 1997 | 1.00 (Referent) | 1.00 (Referent) |
| 2004 | 0.69 (0.47, 1.01) | 0.87 (0.50, 1.52) | |
| 2009 | 0.51 (0.33, 0.78)* | 1.00 (0.55, 1.83) | |
|
| |||
| Age continuous) | 1.03 (1.02, 1.05)* | 1.02 (0.99, 1.04) | |
|
| |||
| Race | Non-white | 1.00 (Referent) | 1.00 (Referent) |
| White | 0.74 (0.54, 1.00) | 1.04 (0.72, 1.49) | |
|
| |||
| Sex | Female | 1.00 (Referent) | 1.00 (Referent) |
| Male | 0.94 (0.64, 1.38) | 0.82 (0.57, 1.18) | |
|
| |||
| Marital status | Married | 1.00 (Referent) | 1.00 (Referent) |
| Unmarried | 2.10 (1.51, 2.91)* | 1.85 (0.96, 3.55) | |
|
| |||
| Charlson Score | 0 | 1.00 (Referent) | 1.00 (Referent) |
| ≥ 1 | 1.77 (1.20, 2.62)* | 1.61 (0.88, 2.96) | |
|
| |||
| Stage Group | I, II & III | 1.00 (Referent) | – |
| (AJCC 6th Ed.) | IVA & IVB | 1.37 (0.83, 2.26) | 1.00 (Referent) |
| IVC | 2.22 (1.16, 4.26)* | 5.64 (3.00, 10.58)* | |
| Unknown | 1.25 (0.72, 2.17) | 0.19 (0.13, 1.06) | |
|
| |||
| Type of Therapy | Surgery | 1.00 (Referent) | 1.00 (Referent) |
| RTC | 1.42 (0.93, 2.17) | 0.71 (0.37, 1.38) | |
|
| |||
| Hospital Beds | 1–299 /Unknown | 1.00 (Referent) | 1.00 (Referent) |
| ≥ 300 | 1.24 (0.90, 1.71) | 1.38 (0.77, 2.48) | |
*
Significant at α = 0.05
OPC=oropharyngeal cancer