The use of mammography by women aged 75 and older

Factors related to health, functioning, and age

Jan Blustein, Linda J. Weiss

Research output: Contribution to journalArticle

Abstract

BACKGROUND AND OBJECTIVES: Mammographic screening for breast cancer is of uncertain clinical benefit for women 75 years of age and older. Some have argued against instituting routine screening in this age group, noting that disability and shorter life expectancy may diminish the desirability and cost-effectiveness of screening. We sought to determine the extent to which health, functioning, and age influence mammography use in this cohort. DESIGN, SETTING, AND PARTICIPANTS: A retrospective cohort study of a representative sample of women in the US aged 75 and older (n = 2352) who participated in the Medicare Current Beneficiary Survey. MEASURES: Information about general health, level of functioning, medical history, age, and various sociodemographic characteristics elicited in the survey was linked with subjects' Medicare bills for 1991 and 1992 to ascertain patterns of mammography use. RESULTS: Overall, 26.7% of the women had mammograms during the 2-year period. Advanced age was associated with a decreased likelihood of receiving a mammogram. This did not reflect simply the decline in health and functioning that may accompany aging; those aged 85 and older were less likely to receive mammograms than those in the 75 to 79 age group, controlling for general health, medical history, functional status, and sociodemographic factors (adjusted OR = .41; 95% CI = 0.27 to 0.64). ADL limitations were also associated independently with decreased mammography use. For example, controlling for age, women with any limitations in Activities of Daily Living were 0.7 times as likely to have mammograms as women without ADL limitations (95% CI = 0.59 to 0.85). However, several comorbid conditions, including hypertension, diabetes mellitus, and a history of myocardial infarction were not significantly related to mammography use. CONCLUSIONS: Within the cohort of women aged 75 and older, more advanced age and impaired functional status both substantially reduce the likelihood of mammography use. The extent to which this reflects patients' informed decisions, physicians' judgments, or other factors remains to be explored.

Original languageEnglish (US)
Pages (from-to)941-946
Number of pages6
JournalJournal of the American Geriatrics Society
Volume46
Issue number8
StatePublished - Aug 1998

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Mammography
Health
Activities of Daily Living
Medicare
Age Groups
Life Expectancy
Health Status
Cost-Benefit Analysis
Diabetes Mellitus
Cohort Studies
Retrospective Studies
Myocardial Infarction
Breast Neoplasms
Hypertension
Physicians

ASJC Scopus subject areas

  • Geriatrics and Gerontology

Cite this

The use of mammography by women aged 75 and older : Factors related to health, functioning, and age. / Blustein, Jan; Weiss, Linda J.

In: Journal of the American Geriatrics Society, Vol. 46, No. 8, 08.1998, p. 941-946.

Research output: Contribution to journalArticle

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abstract = "BACKGROUND AND OBJECTIVES: Mammographic screening for breast cancer is of uncertain clinical benefit for women 75 years of age and older. Some have argued against instituting routine screening in this age group, noting that disability and shorter life expectancy may diminish the desirability and cost-effectiveness of screening. We sought to determine the extent to which health, functioning, and age influence mammography use in this cohort. DESIGN, SETTING, AND PARTICIPANTS: A retrospective cohort study of a representative sample of women in the US aged 75 and older (n = 2352) who participated in the Medicare Current Beneficiary Survey. MEASURES: Information about general health, level of functioning, medical history, age, and various sociodemographic characteristics elicited in the survey was linked with subjects' Medicare bills for 1991 and 1992 to ascertain patterns of mammography use. RESULTS: Overall, 26.7{\%} of the women had mammograms during the 2-year period. Advanced age was associated with a decreased likelihood of receiving a mammogram. This did not reflect simply the decline in health and functioning that may accompany aging; those aged 85 and older were less likely to receive mammograms than those in the 75 to 79 age group, controlling for general health, medical history, functional status, and sociodemographic factors (adjusted OR = .41; 95{\%} CI = 0.27 to 0.64). ADL limitations were also associated independently with decreased mammography use. For example, controlling for age, women with any limitations in Activities of Daily Living were 0.7 times as likely to have mammograms as women without ADL limitations (95{\%} CI = 0.59 to 0.85). However, several comorbid conditions, including hypertension, diabetes mellitus, and a history of myocardial infarction were not significantly related to mammography use. CONCLUSIONS: Within the cohort of women aged 75 and older, more advanced age and impaired functional status both substantially reduce the likelihood of mammography use. The extent to which this reflects patients' informed decisions, physicians' judgments, or other factors remains to be explored.",
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