Table 4.
All |
Urban |
Nonurban |
||||
---|---|---|---|---|---|---|
% with barrier | aORa(95% CI) | % with barrier | aORa(95% CI) | % with barrier | aORa(95% CI) | |
Woman level factors | ||||||
Age group, years | ||||||
40–49 | 4.5 | 1.0 | 4.7 | 1.0 | 3.3 | 1.0 |
50–59 | 4.5 | 1.16 (1.09–1.23) | 5.0 | 1.21 (1.01–1.11) | 2.9 | 0.90 (0.77–1.05) |
60–69 | 2.9 | 0.81 (0.76–0.86) | 3.3 | 0.86 (0.66–0.73) | 1.7 | 0.59 (0.50–0.70) |
70–79 | 1.7 | 0.50 (0.45–0.55) | 1.9 | 0.55 (0.37–0.44) | 0.7 | 0.24 (0.17–0.32) |
80+ | 1.2 | 0.36 (0.30–0.44) | 1.4 | 0.40 (0.24–0.36) | 0.7 | 0.22 (0.13–0.38) |
Race/Ethnicity | ||||||
White | 2.9 | 1.0 | 3.0 | 1.0 | 2.0 | 1.0 |
Black | 6.1 | 1.30 (1.16–1.44) | 6.2 | 1.29 (1.15–1.44) | 2.1 | 1.05 (0.48–2.30) |
Asian | 3.3 | 0.80 (0.74–0.86) | 3.3 | 0.80 (0.74–0.86) | 3.3 | 1.31 (0.67–2.57) |
Hispanic | 7.0 | 1.66 (1.53–1.80) | 7.0 | 1.64 (1.51–1.79) | 5.6 | 1.98 (1.40–2.81) |
Other | 7.0 | 1.84 (1.65–2.04) | 7.2 | 1.75 (1.56–1.96) | 5.5 | 2.53 (1.84–3.47) |
Education | ||||||
<High school graduate | 4.8 | 1.11 (1.02–1.22) | 5.0 | 1.09 (0.99–1.20) | 2.7 | 1.23 (0.86–1.73) |
High school graduate or GED | 3.0 | 0.91 (0.84–0.98) | 3.9 | 0.90 (0.83–0.98) | 1.8 | 0.96 (0.82–1.13) |
Some college | 3.9 | 1.06 (1.00–1.12) | 4.4 | 1.03 (0.97–1.10) | 2.6 | 1.24 (1.07–1.44) |
College graduate | 3.3 | 1.0 | 3.6 | 1.0 | 2.1 | 1.0 |
Family history of breast cancer | ||||||
No | 3.5 | 1.0 | 3.9 | 1.0 | 2.1 | 1.0 |
Yes | 3.5 | 1.16 (1.09–1.23) | 3.8 | 1.15 (1.08–1.23) | 2.3 | 1.27 (1.09–1.48) |
Personal history breast cancer | ||||||
No | 3.6 | 1.0 | 3.9 | 1.0 | 2.2 | 1.0 |
Yes | 3.0 | 1.35 (1.23–1.49) | 3.3 | 1.35 (1.22–1.50) | 1.8 | 1.43 (1.06–1.92) |
Time since prior mammogram | ||||||
No prior mammogram | 7.4 | 3.43 (1.34–8.79) | 7.5 | 3.21 (1.23–9.17) | b | b |
0–11 months | 2.9 | 1.17 (0.99–1.38) | 3.8 | 1.28 (1.07–1.54) | 1.3 | 0.93 (0.64–1.35) |
12–23 months | 2.3 | 1.0 | 2.6 | 1.0 | 1.5 | 1.0 |
24–35 months | 3.7 | 1.49 (1.41–1.57) | 3.8 | 1.45 (1.37–1.53) | 3.0 | 1.97 (1.68–2.31) |
36–47 months | 6.0 | 2.56 (2.36–2.78) | 6.5 | 2.52 (2.31–2.76) | 4.4 | 2.80 (2.27–3.46) |
48+ months | 7.8 | 3.37 (3.12–3.63) | 8.8 | 3.43 (3.16–3.73) | 5.0 | 3.00 (2.45–3.66) |
Other breast imaging in prior year | ||||||
No | 3.6 | 1.0 | 4.0 | 1.0 | 2.2 | 1.0 |
Yes | 2.2 | 0.81 (0.64–1.03) | 2.5 | 0.78 (0.59–1.02) | 1.2 | 0.80 (0.46–1.37) |
Community level factors | ||||||
Median household income in census block | ||||||
< $54,450 | 3.0 | 1.0 | 4.7 | 1.0 | 1.9 | 1.0 |
$54,452–74,787 | 3.4 | 0.88 (0.81–0.95) | 3.9 | 0.87 (0.79–0.96) | 1.8 | 0.97 (0.80–1.17) |
$74,816–101,408 | 3.3 | 0.78 (0.70–0.87) | 3.4 | 0.79 (0.70–0.89) | 2.1 | 0.89 (0.56–1.42) |
> $101,408 | 2.5 | 0.69 (0.61–0.79) | 2.5 | 0.70 (0.61–0.81) | 2.0 | 1.08 (0.33–3.55) |
Average health insurance costs in census block | ||||||
< $1,828 | 3.4 | 1.0 | 4.7 | 1.0 | 1.9 | 1.0 |
$1,828–2,281 | 3.1 | 0.96 (0.89–1.04) | 3.9 | 0.92 (0.84–1.01) | 1.9 | 1.01 (0.87–1.18) |
$2,282–3,188 | 3.2 | 0.96 (0.87–1.06) | 3.4 | 0.93 (0.83–1.04) | 1.8 | 0.93 (0.71–1.22) |
> $3,188 | 2.5 | 0.85 (0.74–0.98) | 2.5 | 0.82 (0.71–0.95) | 1.9 | 0.64 (0.29–1.41) |
Proportion with Internet access in census block | ||||||
<82 | 3.7 | 1.0 | 4.0 | 1.0 | 2.1 | 1.0 |
82–88 | 2.9 | 1.02 (0.96–1.10) | 4.1 | 1.07 (0.99–1.16) | 1.8 | 0.87 (0.74–1.03) |
89–94 | 2.6 | 0.91 (0.84–1.00) | 2.7 | 0.91 (0.83–1.00) | 1.9 | 0.87 (0.67–1.13) |
>94 | 3.3 | 1.11 (1.02–1.21) | 3.3 | 1.12 (1.03–1.23) | 2.4 | 0.22 (0.07–0.72) |
Unemployment rate in census block | ||||||
<6.8 | 2.3 | 1.0 | 2.7 | 1.0 | 1.8 | 1.0 |
6.8–8.7 | 2.9 | 1.06 (0.98–1.13) | 3.1 | 1.04 (0.96–1.13) | 2.0 | 1.11 (0.96–1.29) |
8.8–11.3 | 3.2 | 0.99 (0.92–1.07) | 3.3 | 0.99 (0.91–1.08) | 1.9 | 0.99 (0.78–1.24) |
>11.3 | 4.0 | 1.01 (0.93–1.09) | 4.2 | 1.02 (0.93–1.11) | 1.9 | 0.83 (0.63–1.09) |
Proportion with households in which no adult speaks English very well in census tract | ||||||
None | 2.8 | 1.0 | 3.2 | 1.0 | 1.9 | 1.0 |
Any (>0%) | 3.9 | 1.02 (0.96–1.08) | 3.9 | 1.02 (0.96–1.08) | 5.0 | 0.79 (0.33–1.92) |
Diversity index in census tract | ||||||
<25 | 1.9 | 1.0 | 2.1 | 1.0 | 1.8 | 1.0 |
25–48 | 2.8 | 1.21 (1.06–1.39) | 2.8 | 1.20 (1.03–1.39) | 2.2 | 1.12 (0.76–1.64) |
49–63 | 3.2 | 1.17 (1.02–1.35) | 3.2 | 1.15 (0.99–1.35) | 2.5 | 1.79 (0.98–3.24) |
>63 | 4.5 | 1.28 (1.11–1.48) | 4.5 | 1.26 (1.08–1.48) | 3.5 | 0.96 (0.53–1.74) |
Boldface values indicate statistical significance.
aOR: adjusted for all variables shown in table, as well as BCSC registry site and examination year. Examinations with missing covariates were excluded from the models.
No examinations in this category were retained in the model due to missing covariates.
aOR, adjusted odds ratio; BCSC, Breast Cancer Surveillance Consortium; CI, confidence interval.