Table 2.
Multivariate analysis of factors associated with the hazard of death in Cox regression analysis.
| Category | Hazard ratio | 95% CI | P value | |||||
| Age (years) | ||||||||
|
|
≤40 | 1.00 | — | — | ||||
|
|
40-49 | 0.88 | 0.64-1.21 | .44 | ||||
|
|
50-59 | 0.80 | 0.59-1.10 | .18 | ||||
|
|
60-69 | 0.96 | 0.71-1.29 | .78 | ||||
|
|
≥70 | 1.68 | 1.26-2.24 | <.001 | ||||
| Nationality | ||||||||
|
|
Non-Jordanian | 1.00 | — | — | ||||
|
|
Jordanian | 5.26 | 3.58-7.73 | <.001 | ||||
| Grade | ||||||||
|
|
Well-differentiated | 1.00 | — | — | ||||
|
|
Moderately differentiated | 4.74 | 1.74-12.95 | .002 | ||||
|
|
Poorly differentiated | 5.93 | 2.20-16.00 | <.001 | ||||
|
|
Undifferentiated/Anaplastic | 5.93 | 1.58-22.31 | .008 | ||||
|
|
B cell | 2.08 | 0.74-5.82 | .16 | ||||
|
|
Unspecified | 4.91 | 1.81-13.31 | .002 | ||||
| Summary stage | ||||||||
|
|
Localized | 1.00 | — | — | ||||
|
|
Regional direct extend | 2.35 | 1.34-4.12 | .003 | ||||
|
|
Regional lymph node | 1.50 | 0.79-2.86 | .21 | ||||
|
|
Regional direct extend and lymph node | 3.07 | 1.83-5.14 | <.001 | ||||
|
|
Regional NOSa Stage 2 | 4.08 | 2.06-8.09 | <.001 | ||||
|
|
Distant Stage 3&4 | 5.65 | 3.52-9.08 | <.001 | ||||
|
|
Unknown | 2.90 | 1.80-4.65 | <.001 | ||||
aNOS: not otherwise specified.