Table 2.
Effects of the interaction of ethnicity, neighborhood poverty and health insurance on chemotherapy receipt in California, 1996-2000
| |
|
|
|
|
NHWA-AA |
|---|---|---|---|---|---|
| No. 1 | Rate | RR 2 | (95% CI) | Chemotherapy RD | |
| < 30% Poor & Adequately Insured | |||||
| Non-Hispanic white American |
2,249 |
.395 |
1.00 |
|
|
| African American |
94 |
.377 |
0.95 |
(0.75, 1.20) |
1.8% |
| Intermediate Groups3 | |||||
| Non-Hispanic white American |
673 |
.345 |
1.00 |
|
|
| African American |
314 |
.277 |
0.80 |
(0.65, 0.98) |
6.8% |
| ≥ 30% Poor & Inadequately Insured | |||||
| Non-Hispanic white American |
79 |
.352 |
1.00 |
|
|
| African American | 51 | .146 | 0.41 | (0.22, 0.78) | 20.6% |
Notes. NHWA, Non-Hispanic white American; AA, African American; RR, Standardized rate ratio; RD, Standardized rate difference; CI, Confidence interval. All rates were directly age and stage-adjusted using this study’s combined AA-NHWA population of cases as the standard.
1Number of incident colon cancer cases.
2A rate ratio of 1.00 was the within-ethnic group baseline.
3Included those who lived in extremely poor neighborhoods, but were adequately insured or those who lived in less poor neighborhoods, but were inadequately insured.