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Table 1 Prevalence of population characteristics by mortality status among breast cancer patients ages 66 years and older, SEER-Medicare data from 1992 to 2000a

From: Cardiovascular disease competes with breast cancer as the leading cause of death for older females diagnosed with breast cancer: a retrospective cohort study

Characteristics

Alive

Breast cancer deaths

Other-cause deaths

Total, n (%)

30,972 (48.7%)

9,608 (15.1%)

22,986 (36.2%)

Age, years, n (%)

   

   85+

18,054 (63.0%)

4,021 (14.0%)

6,572 (22.9%)

   75 to 84

11,543 (43.9%)

3,900 (14.8%)

10,824 (41.2%)

   66 to 74

1,375 (15.9%)

1,687 (19.5%)

5,590 (64.6%)

Race/ethnicity, n (%)

   

   White

27,224 (48.9%)

8,170 (14.7%)

20,329 (36.5%)

   Black

1,481 (38.3%)

889 (23.0%)

1,501 (38.8%)

   Hispanic

966 (50.8%)

324 (17.0%)

613 (32.2%)

   Other/unknown

1,301 (62.9%)

225 (10.9%)

543 (26.2%)

Stage, n (%)

   

   I

19,447 (59.3%)

1,735 (5.3%)

11,597 (35.4%)

   II

9,001 (44.1%)

3,546 (17.4%)

7,856 (38.5%)

   III and IV

911 (15.4%)

3,296 (55.6%)

1,724 (29.1%)

   Unknown

1,613 (36.2%)

1,031 (23.2%)

1,809 (40.6%)

Grade, n (%)

   

   1

6,410 (61.3%)

497 (4.8%)

3,546 (33.9%)

   2

11,966 (53.0%)

2,556 (11.3%)

8,052 (35.7%)

   3 and 4

7,121 (42.6%)

3,917 (23.4%)

5,694 (34.0%)

   Unknown

5,475 (39.6%)

2,638 (19.1%)

5,694 (41.2%)

ER status, n (%)

   

   Positive

21,388 (52.5%)

4,784 (11.7%)

14,568 (35.8%)

   Negative

3,471 (43.8%)

2,006 (25.3%)

2,451 (30.9%)

   Unknown/other

6,113 (41.0%)

2,818 (18.9%)

5,967 (40.0%)

Surgery, n (%)

   

   Yes

30,506 (51.1%)

7,658 (12.8%)

21,553 (36.1%)

   No

152 (6.4%)

1,297 (54.7%)

921 (38.9%)

   Unknown

314 (21.2%)

653 (44.2%)

512 (34.6%)

Chemotherapy, n (%)

   

   Yes

4,709 (50.0%)

2,724 (29.0%)

1,975 (21.0%)

   No

26,263 (48.5%)

6,884 (12.7%)

21,011 (38.8%)

Radiation therapy, n (%)

   

   Yes

13,350 (61.5%)

2,798 (12.9%)

5,556 (25.6%)

   No

17,622 (42.1%)

6,810 (16.3%)

17,430 (41.6%)

Comorbidity, n (%)

   

   None

21,017 (56.7%)

5,500 (14.8%)

10,544 (28.4%)

   Previous cancer

4,280 (41.4%)

1,533 (14.8%)

4,534 (43.8%)

   Cardiovascular disease

1,955 (24.1%)

1,353 (16.7%)

4,794 (59.2%)

   COPD

1,886 (33.6%)

798 (14.2%)

2,927 (52.2%)

   Diabetes

3,000 (36.4%)

1,308 (15.9%)

3,939 (47.8%)

  1. aSEER: Surveillance, Epidemiology and End Results; ER: estrogen receptor; COPD: chronic obstructive pulmonary disease.