Table 1.
Participation in screening interview, by race/ethnicity and neighborhood socioeconomic status
| Female breast cancer cases diagnosed at ages 18-64 years a,b n = 29,559 | ||||
|---|---|---|---|---|
| n | % | ORc | 95% CI | |
| Participation in screening | 25,183 | 85 | ||
| Race/ethnicity d | ||||
| Non-Hispanic whites | 16,976 | 87 | 1.0 | |
| Hispanics | 2,259 | 88 | 1.11 | 0.97-1.26 |
| African Americans | 1,713 | 87 | 1.08 | 0.94-1.26 |
| Asian Americans | 3,650 | 77 | 0.52 | 0.48-0.56 |
| Chinese | 1,370 | 76 | 0.47 | 0.42-0.53 |
| Japanese | 345 | 78 | 0.51 | 0.41-0.65 |
| Filipinas | 1,031 | 81 | 0.64 | 0.55-0.74 |
| Other Asian Americans/Pacific Islander | 904 | 76 | 0.48 | 0.42-0.56 |
| Others e | 585 | 79 | 0.54 | 0.45-0.65 |
| P value for differences by race/ethnicity f | <0.01 | <0.01 | ||
| Age at diagnosis (years) | ||||
| 18-34 | 505 | 83 | 1.05 | 0.84-1.31 |
| 35-49 | 9,365 | 86 | 1.21 | 1.13-1.30 |
| 50-64 | 15,313 | 85 | 1.0 | |
| P value for differences by age f | <0.01 | <0.01 | ||
| Stage at diagnosis g | ||||
| In situ | 1,316 | 89 | 1.38 | 1.16-1.65 |
| Localized | 12,667 | 86 | 1.0 | |
| Regional | 6,733 | 87 | 1.06 | 0.98-1.15 |
| Distant | 421 | 80 | 0.63 | 0.51-0.79 |
| Missing | 4,046 | 79 | 0.61 | 0.56-0.66 |
| P value for differences by stage f | 0.01 | <0.01 | ||
| Neighborhood socioeconomic status (quintiles) h,i | ||||
| 1 (low) | 5,026 | 84 | 1.0 | |
| 2 | 4,948 | 85 | 0.93 | 0.84-1.04 |
| 3 | 4,979 | 85 | 0.95 | 0.86-1.06 |
| 4 | 5,035 | 86 | 1.02 | 0.92-1.14 |
| 5 (high) | 5,055 | 86 | 1.04 | 0.94-1.16 |
| P value for differences by neighborhood SES f | 0.10 | 0.18 | ||
Abbreviations: SES socioeconomic status, OR odds ratio, CI confidence interval, SEER Surveillance, Epidemiology, and End Results Program
Includes incident cases diagnosed in Greater Bay Area (Alameda, Contra Costa, Marin, Monterey, San Francisco, San Mateo, Santa Clara, or Santa Cruz counties) from 1995-2009 and incident cases diagnosed in Sacramento or Solano counties from 2005-2006.
Excludes 361 cases from Phase I recruitment who were enrolled in the family registry as probands without telephone screening for eligibility.
Mutually adjusted for race/ethnicity, age at diagnosis, stage, and neighborhood SES.
Based on cancer registry records.
Includes 28 Native American cases, 48 cases listed as other race/ethnicity, and 509 cases of unknown race/ethnicity.
P value from chi square test; in multivariable models, P value from Wald test.
SEER summary stage.
Neighborhood SES based on a composite measure of seven SES indicators from Census data at the level of block groups and categorized according to the quintile distribution of eligible breast cancer cases.
Neighborhood SES was missing for 151 cases.