Table 2.
Age-Adjusted IBC Incidence Rates per 100,000 and Rate Ratios (95% CI) Stratified by County-Level SEP and Race/Ethnicity, 2000–2007
| Variable | All Races Combined | Non-Hispanic White | Black | |||
|---|---|---|---|---|---|---|
| Incidence Rate | Rate Ratio | Incidence Rate | Rate Ratio | Incidence Rate | Rate Ratio | |
| Metro | 2.3 (2.3–2.4) | 2.3 (2.2–2.4) | 3.4 (3.2–3.7) | |||
| Non-Metro | 2.3 (2.1–2.5) | 0.99 (0.90–1.08) | 2.2 (2.0–2.4) | 0.95 (0.85–1.05) | 4.8a (3.7–6.1) | 1.40 (1.06–1.81) |
| County-Level % Below Poverty | ||||||
| <10.00%d | 2.2 (2.1–2.3) | 1.00 | 2.2 (2.1–2.3) | 1.00 | 2.8 (2.3–3.3) | 1.00 |
| 10.00–19.99% | 2.4b (2.3–2.5) | 1.12 (1.06–1.19) | 2.4b (2.3–2.5) | 1.07 (1.00–1.15) | 3.7b (3.4–4.0) | 1.31 (1.08–1.60) |
| ≥20.00% | 2.7b (2.4–2.9) | 1.24 (1.12–1.37) | 2.5 (2.2–2.8) | 1.12 (0.99–1.27) | 3.7b (3.0–4.5) | 1.32 (1.01–1.72) |
|
County-Level % Less than High School Graduate |
||||||
| ≤15.99%d | 2.1 (2.0–2.2) | 1.00 | 2.1 (2.0–2.2) | 1.00 | 3.2 (2.8–3.8) | 1.00 |
| 16–20.80% | 2.3c (2.2–2.4) | 1.09 (1.02–1.17) | 2.4c (2.2–2.5) | 1.11 (1.03–1.21) | 3.4 (2.9–3.9) | 1.04 (0.84–1.28) |
| 20.81–28.76% | 2.6c (2.4–2.8) | 1.23 (1.13–1.33) | 2.5c (2.3–2.7) | 1.18 (1.06–1.31) | 3.3 (2.9–3.8) | 1.03 (0.84–1.27) |
| >28.76% | 2.6c (2.4–2.7) | 1.20 (1.12–1.30) | 2.5c (2.4–2.7) | 1.20 (1.09–1.32) | 4.1c (3.6–4.8) | 1.28 (1.04–1.58) |
| Variable | Hispanic White | Asian/Pacific Islander | American Indian/Alaska Native | |||
|---|---|---|---|---|---|---|
| Incidence Rate | Rate Ratio | Incidence Rate | Rate Ratio | Incidence Rate | Rate Ratio(95%CI) | |
| Metro | 2.4 (2.2–2.6) | 1.3 (1.1–1.4) | 1.2 (0.7–1.9) | |||
| Non-Metro | 2.6 (1.7–3.7) | 1.05 (0.69–1.55) | 1.4 (0.7–2.4) | 1.08 (0.55–1.92) | 1.6 (0.6–3.5) | 1.35 (0.43–3.47) |
| County-Level % Below Poverty | ||||||
| <10.00%d | 2.3 (1.9–2.8) | 1.00 | 1.2 (1.0–1.5) | 1.00 | 2.5 (1.4–4.0) | 1.00 |
| 10.00–19.99% | 2.4 (2.2–2.6) | 1.05 (0.85–1.30) | 1.3 (1.1–1.5) | 1.08 (0.84–1.39) | 1.2 (0.6–2.1) | 0.49 (0.22–1.08) |
| ≥20.00% | 2.7 (2.1–3.4) | 1.18 (0.87–1.60) | 0.8 (0.2–2.0) | 0.62 (0.16–1.68) | 1.3 (0.5–2.8) | 0.55 (0.19–1.41) |
|
County–Level % Less than High School Graduate |
||||||
| ≤15.99%d | 2.0 (1.6–2.5) | 1.00 | 1.2 (1.0–1.5) | 1.00 | 2.3 (1.4–3.7) | 1.00 |
| 16–20.80% | 2.5 (2.2–2.9) | 1.25 (0.96–1.64) | 1.2 (1.0–1.4) | 0.95 (0.70–1.28) | 1.3 (0.4–2.9) | 0.55 (0.16–1.46) |
| 20.81–28.76% | 2.4 (1.9–2.9) | 1.17 (0.86–1.59) | 1.6 (0.9–2.6) | 1.29 (0.71–2.22) | 0.9 (0.2–2.4) | 0.40 (0.10–1.23) |
| >28.76% | 2.5 (2.2–2.8) | 1.24 (0.97–1.60) | 1.4 (1.1–1.8) | 1.13(0.82–1.56) | 1.3 (0.6–2.6) | 0.57 (0.22–1.35) |
a
Non-Metro rate significantly different from Metro rate (p<0.05)
b
Rate significantly different from <10.00% rate (p<0.05)
c
Rate significantly different from ≤15.99% rate (p<0.05)
d
Referent Category for Rate Ratios