Breast Cancer in California

Table 2.4

Five-year invasive 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 86,691 105.5 4,504 60.7 4,720 98.5 8,333 68.5 68,264 117.4
Alameda 3,890 107.3 337 69.9 538 91.9 302 88.5* 2,688 121.0
Alpine 0 - - - - - - - - -
Amador 132 - - - - - - - - -
Butte 650 100.0 - - - - - - 614 100.8*
Calaveras 150 - - - - - - - - -
Colusa 44 - - - - - - - - -
Contra Costa 2,947 119.4* 154 75.3 190 104.3 161 97.7* 2,431 125.7*
Del Norte 70 - - - - - - - - -
El Dorado 454 116.8* - - - - - - 437 119.2
Fresno 1,751 97.5* 50 44.1 - - 214 56.0* 1,398 112.9
Glenn 76 - - - - - - - - -
Humboldt 397 111.6 - - - - - - 390 118.3
Imperial 239 84.9* - - - - 106 72.1 - -
Inyo 81 - - - - - - - - -
Kern 1,240 88.3* - - - - 106 49.0* 1,046 95.6*
Kings 192 90.2 - - - - - - 146 96.8
Lake 246 110.7 - - - - - - 234 113.3
Lassen 45 - - - - - - - - -
Los Angeles 23,316 101.0* 1,606 63.4 2,376 96.4 3,374 63.6* 15,760 121.6*
Madera 227 87.2* - - - - - - 185 93.9*
Marin 1,010 127.8* - - - - - - 954 132.5*
Mariposa 48 - - - - - - - - -
Mendocino 258 98.6 - - - - - - 246 102.2
Merced 359 81.8* - - - - 53 65.5 280 89.0*
Modoc 12 - - - - - - - - -
Mono 18 - - - - - - - - -
Monterey 879 98.8 - - - - 105 67.5 672 106.0
Napa 455 114.1 - - - - - - 433 119.8
Nevada 316 101.8 - - - - - - 305 101.9
Orange 7,286 113.5* 313 54.0 48 79.7 488 64.2 6,364 124.7*
Placer 636 116.5 - - - - - - 600 119.7
Plumas 45 - - - - - - - - -
Riverside 3,838 107.3 51 49.7 112 87.0 325 71.1 3,325 115.2
Sacramento 3,340 111.9* 157 59.6 210 111.8 174 85.0* 2,764 118.3
San Benito 88 - - - - - - - - -
San Bernardino 3,434 99.2* 80 47.4 182 96.2 438 74.3 2,708 104.9*
San Diego 7,636 111.3* 298 61.3 254 105.3 579 69.7 6,458 121.0
San Francisco 2,508 102.0 437 62.0 252 112.5 190 74.0 1,583 128.2*
San Joaquin 1,382 103.9 55 45.7 - - 137 73.6 1,129 115.6
San Luis Obispo 734 109.2 - - - - - - 684 112.2
San Mateo 2,351 112.9* 217 76.1* - - 147 71.5 1,894 125.9*
Santa Barbara 1,168 106.9 - - - - 119 77.9 1,004 113.1
Santa Clara 4,229 108.4 340 56.9 89 105.2 442 81.7* 3,286 120.4
Santa Cruz 691 109.1 - - - - 50 76.9 564 103.3*
Shasta 552 112.2 - - - - - - 536 114.7
Sierra 8 - - - - - - - - -
Siskiyou 153 93.7 - - - - - - - -
Solano 885 107.5 85 72.8 82 89.0 49 71.4 662 118.5
Sonoma 1,382 109.9 - - - - 45 69.8 1,304 113.1
Stanislaus 1,013 98.7 - - - - 74 59.9 907 105.7*
Sutter 193 96.4 - - - - - - 177 107.7
Tehama 143 78.0* - - - - - - 140 80.8*
Trinity 55 - - - - - - - - -
Tulare 754 88.7* - - - - 131 76.4 599 95.2*
Tuolumne 220 127.0* - - - - - - 215 131.3
Ventura 1,906 107.3 - - - - 194 67.7 1,599 115.6
Yolo 390 112.5 - - - - - - 327 114.9
Yuba 169 112.5 - - - - - - 149 116.4

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, 1989-1993 (p < 0.01).

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