Breast Cancer in California

Table 2.8

In situ female breast cancer incidence counts (1) and average annual age-adjusted rates (2) per 100,000 population by county and race/ethnicity (3), California, 1989-1993

All Races Asian/Other Black Hispanic White
County of Residence Cases Rate Cases Rate Cases Rate Cases Rate Cases Rate
California 11,934 15.2 662 8.9 571 12.0 966 8.1 9,502 17.5
Alameda 607 17.3* 76 15.6* 92 15.8 42 12.8* 386 18.4
Alpine 0 - - - - - - - - -
Amador 16 - - - - - - - - -
Butte 86 14.1 - - - - - - 83 14.5
Calaveras 18 - - - - - - - - -
Colusa 9 - - - - - - - - -
Contra Costa 456 19.1* 30 15.0* 20 11.2 20 12.8 383 20.7*
Del Norte 5 - - - - - - - - -
El Dorado 64 17.2 - - - - - - 61 17.5
Fresno 236 14.2 7 - - - 36 10.3 171 14.8
Glenn 5 - - - - - - - - -
Humboldt 63 18.8 - - - - - - 60 19.2
Imperial 23 8.4* - - - - 9 - - -
Inyo 3 - - - - - - - - -
Kern 1,240 88.3* - - - - 9 - 106 10.1*
Kings 23 11.3 - - - - - - 15 11.0
Lake 26 14.0 - - - - - - 26 15.3
Lassen 1 - - - - - - - - -
Los Angeles 3,031 13.6* 181 7.2 264 10.9 345 6.6* 2,186 18.2
Madera 36 14.3 - - - - - - 33 17.5
Marin 176 23.2* - - - - - - 169 24.7*
Mariposa 4 - - - - - - - - -
Mendocino 57 23.5* - - - - - - 53 23.4
Merced 60 13.9 - - - - 5 - 55 18.4
Modoc 4 - - - - - - - - -
Mono 0 - - - - - - - - -
Monterey 100 11.7 - - - - 10 - 77 13.3
Napa 54 15.5 - - - - - - 52 16.7
Nevada 36 12.5 - - - - - - 35 12.6
Orange 1,075 17.4* 49 8.7 11 - 76 9.5 930 19.3*
Placer 106 20.3* - - - - - - 99 20.5
Plumas 1 - - - - - - - - -
Riverside 415 12.1* 9 - 3 - 26 5.8 370 13.6*
Sacramento 514 17.6* 17 6.8 25 14.7 35 16.2* 418 18.4
San Benito 11 - - - - - - - - -
San Bernardino 348 10.4* 6 - 12 - 40 7.1 283 11.6*
San Diego 1,035 15.8 33 6.9 25 11.3 78 10.2 882 17.8
San Francisco 467 20.9* 86 12.8* 45 19.4* 32 13.1* 290 27.2*
San Joaquin 157 12.4 2 - - - 10 - 139 15.5
San Luis Obispo 90 15.1 - - - - - - 78 14.5
San Mateo 434 21.6* 52 16.8* - - 26 13.0 341 24.2*
Santa Barbara 152 15.1 - - - - 13 - 132 16.5
Santa Clara 696 18.1* 66 10.4 13 - 49 8.8 541 20.6*
Santa Cruz 87 14.2 - - - - 4 - 76 14.7
Shasta 71 14.8 - - - - - - 16.7 14.8
Sierra 1 - - - - - - - - -
Siskiyou 25 15.8 - - - - - - - -
Solano 117 14.5 7 - 17 20.2 10 - 80 14.6
Sonoma 219 18.7* - - - - 9 - 203 19.1
Stanislaus 93 9.9* - - - - 4 - 82 10.5*
Sutter 27 13.5 - - - - - - 26 16.1
Tehama 22 14.6 - - - - - - 21 15.0
Trinity 4 - - - - - - - - -
Tulare 67 8.4* - - - - 7 - 57 9.6*
Tuolumne 26 16.0 - - - - - - 26 16.9
Ventura 279 16.1 - - - - 25 8.9 236 17.5
Yolo 54 16.1 - - - - - - 45 16.5
Yuba 19 12.6 - - - - - - 17 13.3

1 Cases for counties with five-year race-specific population sums of less than 200,000 are not shown.

2 Rates are age-adjusted to the 1970 U.S. Standard except where noted. Rates based on fewer than 15 cases are not shown. Data are from the California Cancer Registry (10/95).

3 Race/ethnicity categories are mutually exclusive. Persons of Hispanic ethnicity are identified by medical record and/or surname, and may be of any race. Women of unknown race/ethnicity are excluded from race/specific data.

* Rate is significantly different from comparable race-specific statewide rate for non-Hispanic whites, 1989-1993 (p < 0.01).

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