Table 3.
Factors predictive of more radical surgery
| Variable | Univariate | Multivariable | ||
|---|---|---|---|---|
| OR (95% CI) | p value | Adjusted OR (95% CI) | p value | |
| Median age | 1.00 (0.98 – 1.02) | .881 | ||
| Race | ||||
| White | Referent | -- | -- | -- |
| Black | 0.90 (0.67 – 1.222) | .488 | ||
| Hispanic | 0.94 (0.77 – 1.14) | .499 | ||
| Other | 0.97 (0.72 – 1.30) | .893 | ||
| Marital status | ||||
| Single | Referent | -- | -- | -- |
| Married/Domestic partner | 1.00 (0.83 – 1.21) | .981 | ||
| Divorced/Widowed/Separated | 0.97 (.74 – 1.31) | .925 | ||
| Unknown | 0.96 (0.54 – 1.38) | .536 | ||
| SEER Region | ||||
| Central | Referent | -- | -- | -- |
| Eastern | 0.80 (0.60 – 1.05) | .795 | ||
| Western | 0.84 (0.67 – 1.06) | .844 | ||
| Year of diagnosis | ||||
| 1998–2002 | Referent | -- | Referent | -- |
| 2003–2007 | 0.74 (0.60 – 0.93) | .008 | 0.74 (0.60 – 0.93) | .009 |
| 2008–2012 | 0.59 (0.47 – 0.73) | <.001 | 0.62 (0.50 – 0.78) | <.001 |
| Histology | ||||
| Squamous cell | Referent | -- | Referent | -- |
| Adenocarcinoma | 0.78 (0.64 – 0.94) | .010 | 0.94 (0.76 – 1.17) | .576 |
| Adenosquamous | 1.08 (0.79 – 1.46) | .641 | 1.05 (0.77 – 1.42) | .781 |
| Grade | ||||
| G1 | Referent | -- | Referent | -- |
| G2 | 1.42 (1.09 – 1.85) | .010 | 1.31 (0.98 – 1.74) | .069 |
| G3 | 1.83 (1.39 – 2.41) | <.001 | 1.61 (1.18 – 2.19) | .003 |
| Unknown | 1.21 (0.84 – 1.74) | 0300 | 1.12 (0.77 – 1.63) | .556 |
| Tumor size | ||||
| ≤ 2 cm | Referent | -- | Referent | -- |
| > 2 cm | 1.22 (1.03 – 1.45) | .020 | 1.15 (0.96 – 1.37) | .128 |
| Unknown | 0.34 (0.21 – 0.72) | .003 | 0.47 (0.25 – 0.89) | .020 |
Abbreviations: OR, odds ratio