Table 4.
Correlations between patient factors and survival in treatment-refusing colorectal cancer patients
| Variable | Adj. HR a | 95% CI | P value | |
|---|---|---|---|---|
|
Sex |
|
|
|
|
| Female (reference group) |
- |
- |
- |
- |
| Male |
1.03 |
0.91 |
1.17 |
0.650 |
|
Age at diagnosis, years |
|
|
|
|
| ≤44 (reference group) |
- |
- |
- |
- |
| 45–54 |
0.79 |
0.59 |
1.07 |
0.132 |
| 55–64 |
0.93 |
0.69 |
1.25 |
0.630 |
| 65–74 |
0.96 |
0.72 |
1.28 |
0.769 |
| ≥75 |
1.59 |
1.20 |
2.09 |
0.001* |
|
Urbanization level of residence location |
|
|
|
|
| Level 1 (highest; reference group) |
- |
- |
- |
- |
| Level 2 |
0.89 |
0.75 |
1.05 |
0.158 |
| Level 3 |
1.06 |
0.87 |
1.30 |
0.578 |
| Level 4 |
1.04 |
0.85 |
1.28 |
0.692 |
| Level 5 |
0.89 |
0.63 |
1.26 |
0.510 |
| Level 6 |
0.90 |
0.68 |
1.18 |
0.433 |
| Level 7 (lowest) |
1.27 |
0.95 |
1.69 |
0.115 |
|
Aboriginal status |
|
|
|
|
| No (reference group) |
- |
- |
- |
- |
| Yes |
0.33 |
0.13 |
0.81 |
0.015* |
|
Insured monthly salary, NTD |
|
|
|
|
| ≤17,280 (reference group) |
- |
- |
- |
- |
| Insured dependent |
0.98 |
0.75 |
1.28 |
0.889 |
| 17,281–22,800 |
0.92 |
0.79 |
1.08 |
0.330 |
| ≥22,801 |
0.74 |
0.60 |
0.92 |
0.007* |
|
Low-income household status |
|
|
|
|
| No (reference group) |
- |
- |
- |
- |
| Yes |
1.71 |
1.07 |
2.72 |
0.024* |
|
Other catastrophic illnesses or injuries |
|
|
|
|
| No (reference group) |
- |
- |
- |
- |
| Yes |
1.26 |
0.98 |
1.60 |
0.070 |
|
Charlson Comorbidity Index (CCI) |
|
|
|
|
| ≤3 (reference group) |
- |
- |
- |
- |
| 4–6 |
7.31 |
6.54 |
8.16 |
<0.001* |
| ≥7 |
15.96 |
14.43 |
17.65 |
<0.001* |
|
Cancer stage |
|
|
|
|
| Stage 0 (reference group) |
- |
- |
- |
- |
| Stage I |
1.48 |
0.92 |
2.38 |
0.110 |
| Stage II |
2.99 |
1.91 |
4.67 |
<0.001* |
| Stage III |
3.58 |
2.35 |
5.46 |
<0.001* |
| Stage IV | 11.33 | 7.55 | 17.00 | <0.001* |
aevent: death; the model has controlled for level of diagnosing hospital and ownership type of diagnosing hospital.
*P < 0.05.