Associations of Census-Tract Poverty with Subsite-Specific Colorectal Cancer Incidence Rates and Stage of Disease at Diagnosis in the United States
Table 2
Overall CRC and subsite-specific age-adjusted incidence ratesa for women by poverty and race/ethnicity for selected areasb in the United States, 2005–2010.
CT poverty
CRCc
Proximal colond
Distal colone
Rectumf
IR (95% CI)
IRR
IR (95% CI)
IRR
IR (95% CI)
IRR
IR (95% CI)
IRR
All women
<5% (low)
28,398
38.3 (37.8–38.8)
Ref
13,086
17.6 (17.3–17.9)
Ref
6,225
8.4 (8.2–8.7)
Ref
6,969
9.4 (9.2–9.7)
Ref
5.0–9.9%
33,062
38.2 (37.8–38.6)
1.00 (0.98–1.01)
15,523
17.7 (17.4–18.0)
1.00 (0.98–1.03)
7,113
8.3 (8.1–8.5)
0.98 (0.95–1.02)
8,101
9.5 (9.3–9.7)
1.01 (0.98–1.04)
10.0–19.9%
38,041
39.2 (38.8–39.6)
1.02 (1.01–1.04)
17,586
17.8 (17.6–18.1)
1.01 (0.99–1.04)
8,622
9.0 (8.8–9.2)
1.07 (1.03–1.10)
9,088
9.6 (9.4–9.8)
1.01 (0.98–1.05)
20+ (high)
24,919
40.7 (40.2–41.2)
1.06 (1.05–1.08)
10,994
17.8 (17.5–18.2)
1.01 (0.99–1.04)
5,823
9.6 (9.4–9.9)
1.14 (1.10–1.18)
6,127
10.1 (9.9–10.4)
1.07 (1.03–1.10)
NHW women
<5% (low)
24,316
38.8 (38.3–39.3)
Ref
11,432
18.0 (17.6–18.3)
Ref
5,156
8.3 (8.1–8.6)
Ref
5,891
9.6 (9.3–9.8)
Ref
5.0–9.9%
27,041
38.6 (38.1–39.1)
1.00 (0.98–1.01)
12,981
17.9 (17.6–18.3)
1.00 (0.97–1.03)
5,649
8.3 (8.1–8.5)
0.99 (0.96–1.03)
6,517
9.7 (9.5–9.9)
1.01 (0.97–1.05)
10.0–19.9%
28,063
40.0 (39.5–40.5)
1.03 (1.01–1.05)
13,441
18.4 (18.1–18.7)
1.02 (1.00–1.05)
6,101
9.0 (8.8–9.2)
1.08 (1.04–1.12)
6,530
9.9 (9.6–10.1)
1.03 (0.99–1.07)
20+ (high)
12,074
42.5 (41.7–43.3)
1.10 (1.07–1.12)
5,582
18.6 (18.1–19.1)
1.04 (1.00–1.07)
2,652
9.8 (9.5–10.2)
1.18 (1.12–1.24)
2,896
10.9 (10.5–11.3)
1.14 (1.09–1.19)
NHB women
<5% (low)
1,292
43.6 (41.2–46.1)
Ref
605
21.1 (19.4–22.9)
Ref
292
9.5 (8.4–10.7)
Ref
308
10.0 (8.9–11.2)
5.0–9.9%
2,385
43.9 (42.1–45.8)
1.01 (0.94–1.08)
1,118
21.2 (20.0–22.5)
1.01 (0.91–1.11)
524
9.3 (8.5–10.2)
0.98 (0.85–1.14)
562
9.9 (9.1–10.8)
0.99 (0.86–1.15)
10.0–19.9%
4,625
45.3 (44.0–46.7)
1.04 (0.98–1.11)
2,099
21.0 (20.1–22.0)
1.00 (0.91–1.09)
1,099
10.6 (9.9–11.2)
1.11 (0.97–1.28)
1,051
10.0 (9.4–10.6)
1.00 (0.88–1.14)
20+ (high)
7,342
48.7 (47.5–49.8)
1.12 (1.05–1.19)
3,342
22.3 (21.6–23.1)
1.06 (0.97–1.16)
1,703
11.2 (10.7–11.7)
1.18 (1.04–1.34)
1,707
11.1 (10.6–11.7)
1.11 (0.98–1.27)
Hispanic women
<5% (low)
1,500
36.8 (34.9–38.7)
Ref
607
16.2 (14.9–17.6)
Ref
359
8.2 (7.3–9.1)
Ref
411
9.2 (8.3–10.2)
Ref
5.0–9.9%
2,361
33.9 (32.5–35.3)
0.92 (0.86–0.99)
991
15.0 (14.1–16.0)
0.93 (0.83–1.03)
567
7.8 (7.2–8.5)
0.96 (0.83–1.10)
612
8.3 (7.6–9.0)
0.90 (0.79–1.02)
10.0–19.9%
3,979
31.9 (30.9–32.9)
0.87 (0.82–0.92)
1,577
13.3 (12.6–14.0)
0.82 (0.74–0.90)
1,003
7.7 (7.2–8.2)
0.94 (0.83–1.07)
1,088
8.4 (7.9–8.9)
0.91 (0.81–1.03)
20+ (high)
4,611
30.8 (29.9–31.7)
0.84 (0.79–0.89)
1,773
12.5 (11.9–13.1)
0.77 (0.70–0.85)
1,209
7.7 (7.3–8.2)
0.95 (0.84–1.07)
1,245
8.0 (7.5–8.5)
0.87 (0.77–0.98)
API women
<5% (low)
1,290
28.6 (27.0–30.2)
Ref
442
10.4 (9.4–11.4)
Ref
418
8.9 (8.0–9.8)
Ref
359
7.7 (6.9–8.6)
Ref
5.0–9.9%
1,275
30.1 (28.4 –31.8)
1.05 (0.97–1.14)
433
10.6 (9.6–11.7)
1.02 (0.89–1.17)
373
8.5 (7.7–9.4)
0.96 (0.83–1.11)
410
9.5 (8.6–10.5)
1.23 (1.06–1.43)
10.0–19.9%
1,374
30.6 (28.9–32.2)
1.07 (0.99–1.16)
469
11.0 (10.0–12.1)
1.06 (0.92–1.21)
419
9.1 (8.3–10.1)
1.03 (0.89–1.18)
419
8.9 (8.0–9.8)
1.15 (0.99–1.33)
20+ (high)
892
32.1 (30.0–34.3)
1.12 (1.03–1.23)
297
10.8 (9.6–12.1)
1.04 (0.89–1.21)
259
9.3 (8.2–10.5)
1.04 (0.89–1.22)
279
10.0 (8.8–11.2)
1.29 (1.10–1.52)
aRates are per 100,000 persons and age-adjusted to the 2000 US standard population.
bData are from selected population-based cancer registries that participate in the National Program of Cancer Registries (NPCR) and/or the Surveillance Epidemiology and End Results (SEER) Program: Arizona, Colorado, Connecticut, Florida, Georgia, Hawaii, Idaho, Iowa, Louisiana, Minnesota, New York, New Jersey, Texas, Utah, West Virginia, and Los Angeles.
cColon and rectum (CRC) included ICD-O-3 codes C18.0–C18.9, C19.9, C20.9, and C26.0.
dProximal included ICD-O-3 codes C18.0, C18.2, C18.3, C18.4, and C18.5.
eDistal included ICD-O-3 codes 18.6 and C18.7.
fRectum included ICD-O-3 codes C19.9 and C20.9. IRR: incidence rate ratio; CI: confidence interval; CT: census tract; NHW: non-Hispanic white; NHB: non-Hispanic black; API: Asian Pacific Islander. Bold numbers indicate significant associations ; reference (<5% below poverty).
