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. Author manuscript; available in PMC: 2015 Jul 18.
Published in final edited form as: Breast Cancer Res Treat. 2014 Jun 18;146(2):401–409. doi: 10.1007/s10549-014-3021-8

Table 1.

Characteristics of Older Five-Year Survivors of Early Breast Cancer and Matched Comparison Cohort

Breast Cancer
Survivor Cohorta
(n = 1,361)		 Comparison
Cohortb
(n = 1,361)
No. % No. %
Sociodemographic
  Age Category at Beginning of Follow-up (years)
    70–74 502 37 502 37
    75–79 417 31 417 31
    80+ 442 32 442 32
  Race/ethnicity
    Caucasian, Non-Hispanic 1115 82 1147 84
    African-American, Non-Hispanic 137 10 125 9.2
    Hispanic 72 5.3 62 4.6
    Asian/Pacific Islander 37 2.7 27 2.0
    Native American 0 0 0 0
Comorbidity Burden at Beginning of Follow-up
  Prevalent Comorbidities included in mCCIc (index weight)
    Myocardial infarction (1) 80 5.9 80 5.9
    Congestive heart failure (1) 140 10 117 8.6
    Peripheral vascular disease (1) 60 4.4 67 4.9
    Cerebrovascular disease (1) 96 7.1 98 7.2
    Dementia (1) 64 4.7 76 5.6
    Chronic pulmonary disease (1) 172 13 184 14
    Connective tissue disease (1) 36 2.6 62 4.6
    Ulcer disease (1) 75 5.5 73 5.4
    Diabetes (1) 202 15 169 12
    Mild liver disease (1) 7 0.51 6 0.44
    Hemiplegia (2) 24 1.8 25 1.8
    Moderate or severe renal disease (2) 17 1.2 15 1.1
    Diabetes with end organ damage (2) 31 2.3 31 2.3
    Leukemia, lymphoma or tumord (2) 112 8.2 75 5.5
    Moderate or severe liver disease (3) 14 1.0 2 0.15
    AIDS (6) 0 0.00 0 0.00
    Metastatic solid tumor (6) 6 0.44 4 0.29
  Modified Charlson Comorbidity Indexe
    mCCI 0 741 54 755 55
    mCCI 1–2 502 37 487 36
    mCCI 3+ 118 8.7 119 8.7
a

Older five-year survivors diagnosed 1990–1994 with early stage I and II breast cancer at age 65 or older followed for 10 years beginning five years after index date (date of breast cancer diagnosis).

b

Comparison cohort matched for health system and age, who were free of breast cancer at matched index date and followed for 10 years beginning five years after index date.

c

Women may be counted in multiple comorbidities.

d

Prevalent breast cancer at index date excluded.

e

Prevalent breast cancer at index date excluded from modified Charlson Comorbidity Index (mCCI), which is calculated from the sum of comorbidity weights listed in the table (Charlson et al 1987).