Table 2 |
||||
|
Factors significantly associated with survival in multiple Cox regression analysis |
||||
|
Variables |
HR |
(95%CI) |
P-value |
|
|
|
||||
|
Receipt of chemotherapy |
No chemotherapy |
1.00 |
- |
- |
|
Standard chemotherapy |
0.80 |
(0.76, 0.83) |
< 0.001 |
|
|
Aggressive-approach chemotherapy |
0.82 |
(0.72, 0.92) |
< 0.001 |
|
|
Age at diagnosis |
65 |
1.00 |
- |
- |
|
Each increasing year |
1.01 |
(1.00, 1.01) |
< 0.001 |
|
|
Gender |
Female |
1.00 |
- |
- |
|
Male |
1.09 |
(1.05, 1.14) |
< 0.001 |
|
|
Charlson comorbidity index |
0 |
1.00 |
- |
- |
|
1 |
1.16 |
(1.09, 1.23) |
< 0.001 |
|
|
2 ≤ |
1.28 |
(1.18, 1.38) |
< 0.001 |
|
|
Region of tumor registries |
Northeast |
1.00 |
- |
- |
|
South |
- |
- |
n.s. |
|
|
Midwest |
- |
- |
n.s. |
|
|
West |
1.08 |
(1.03, 1.13) |
< 0.001 |
|
|
Socioeconomic status |
Lowest quintile |
1.00 |
- |
- |
|
Each increasing quintile |
- |
- |
n.s. |
|
|
Teaching hospital |
No |
1.00 |
- |
- |
|
Yes |
- |
- |
n.s. |
|
|
Year of death |
1991 |
1.00 |
- |
- |
|
1992 |
1.11 |
(1.04, 1.19) |
< 0.01 |
|
|
1993 |
- |
- |
n.s. |
|
|
1994 |
- |
- |
n.s. |
|
|
1995 |
- |
- |
n.s. |
|
|
1996 |
- |
- |
n.s. |
|
|
1997 |
- |
- |
n.s. |
|
|
1998 |
0.91 |
(0.84, 0.97) |
< 0.01 |
|
|
1999 |
0.89 |
(0.82, 0.96) |
< 0.01 |
|
|
|
||||
|
Abbreviation: HR, hazard ratio; CI, confidence interval; n.s., not significant. NOTE: Stepwise selection was used. Race/ethnicity, and living in urban region were not found to be significant predictors of survival in univariate analysis (P-value > 0.20). |
||||
|
Saito et al. BMC Palliative Care 2011 10:14 doi:10.1186/1472-684X-10-14 |
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