Table 4.
Logistic regression main effects and interactions of neighborhood poverty and primary payer by breast cancer stage at diagnosis on survival
| |
Local-Regional |
Distally Metastasized |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| |
Node negative disease |
Node positive disease |
|
||||||
| |
8 year survival |
5 year survival |
3 year survival |
||||||
| Predictor Variables | Sample | OR | (95% CI) | Sample | OR | (95% CI) | Sample | OR | (95% CI) |
| |
Single predictor models |
||||||||
| Neighborhood poverty | |||||||||
| < 5% poor |
1,435 |
1.00 |
|
561 |
1.00 |
|
55 |
1.00 |
|
| 5-29% poor |
1,353 |
0.73 |
(0.61, 0.88) |
574 |
0.70 |
(0.53, 0.93) |
97 |
0.76 |
(0.37, 1.59) |
| ≥ 30% poor |
1,247 |
0.54 |
(0.45, 0.65) |
639 |
0.41 |
(0.31, 0.53) |
135 |
0.63 |
(0.31, 1.29) |
| Primary payer | |||||||||
| Uninsured or Medicaid |
572 |
1.00 |
|
382 |
1.00 |
|
84 |
1.00 |
|
| Medicare or private |
3,463 |
1.57 |
(1.27, 1.96) |
1,392 |
1.86 |
(1.44, 2.41) |
203 |
2.51 |
(1.28, 4.92) |
| |
Full models |
||||||||
| Neighborhood poverty | |||||||||
| < 5% poor |
1,435 |
1.00 |
|
561 |
1.00 |
|
55 |
1.00 |
|
| 5-29% poor |
1,353 |
0.92 |
(0.67, 1.26) |
574 |
0.72 |
(0.55, 0.96) |
97 |
0.79 |
(0.38, 1.68) |
| ≥ 30% poor |
1,247 |
0.84 |
(0.50, 1.40) |
639 |
0.44 |
(0.34, 0.58) |
135 |
0.76 |
(0.36, 1.59) |
| Primary payer | |||||||||
| Uninsured or Medicaid |
572 |
1.00 |
|
382 |
1.00 |
|
84 |
1.00 |
|
| Medicare or private |
3,463 |
1.89 |
(1.26, 2.84) |
1,392 |
1.59 |
(1.22, 2.07) |
203 |
2.40 |
(1.21, 4.79) |
| Poverty by payer |
4,035 |
0.79* |
(0.60, 1.04) |
1,774 |
1.20a |
(0.85, 1.69) |
287 |
1.17a |
(0.39, 3.54) |
| |
Poverty by payer interaction among women with node negative disease on 8 year survival |
||||||||
| |
> 30% poor |
5-29% poor |
< 5% poor |
||||||
| |
Sample |
OR |
(95% CI) |
Sample |
OR |
(95% CI) |
Sample |
OR |
(95% CI) |
| Primary payer | |||||||||
| Uninsured or Medicaid |
277 |
1.00 |
|
186 |
1.00 |
|
109 |
1.00 |
|
| Medicare or private | 970 | 1.16 | (0.82, 1.62) | 1,167 | 1.57 | (1.09, 2.27) | 1,326 | 1.81 | (1.11, 2.95) |
Notes. OR = odds ratio, CI = confidence interval. All effects were age-adjusted across these categories: 25–44, 45–54, 55–64, 65–74 and 75 or older. After age, poverty and payer were accounted for, place (large urban, smaller urban or rural) and race/ethnicity (person of color [32.1%] or non-Hispanic white) did not enter any of the full models. Bolded ORs were statistically significant at p < .05.
a Null interaction was removed from the full model. *p < .10.