Potential overuse of screening mammography and its association with access to primary care

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

BACKGROUND:: Cancer screening in individuals with limited life expectancy increases the risk of diagnosis and treatment of cancer that otherwise would not have become clinically apparent. OBJECTIVE:: To estimate screening mammography use in women with limited life expectancy, its geographic variation, and association with access to primary care and mammographic resources. METHODS:: We assessed screening mammography use in 2008-2009 in 106,737 women aged 66 years or older with an estimated life expectancy of <7 years using a 5% national sample of Medicare beneficiaries. Descriptive statistics were used to estimate the screening mammography utilization, by access to primary care. RESULTS:: Among women with a life expectancy of <7 years, 28.5% received screening mammography during 2008-2009. The screening rates were 34.6% versus 20.5% for women with and without an identifiable primary care physician, respectively. The screening rates were higher among women who saw >1 generalist physician and who had more visits to generalist physicians. There was substantial geographic variation across the United States, with an average rate of 39.5% in the hospital referral regions (HRRs) in the top decile of screening versus 19.5% in the HRRs in the bottom decile. The screening rates were higher among HRRs with more primary care physicians (r=0.14, P=0.02), mammography facilities (r=0.12, P=0.04), and radiologists (r=0.22, P<0.001). CONCLUSIONS:: Substantial proportions of women with limited life expectancy receive screening mammography. Results presented sound a cautionary note that greater access to primary care and mammographic resources is also associated with higher overuse.

Original languageEnglish (US)
Pages (from-to)490-495
Number of pages6
JournalMedical Care
Volume52
Issue number6
DOIs
StatePublished - 2014

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Mammography
Life Expectancy
Primary Health Care
Referral and Consultation
Physicians
Primary Care Physicians
Early Detection of Cancer
Neoplasms
Therapeutics

Keywords

  • Access to care
  • elderly
  • medicare
  • overuse
  • screening mammography

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health

Cite this

Potential overuse of screening mammography and its association with access to primary care. / Tan, Alai; Kuo, Yong Fang; Goodwin, James.

In: Medical Care, Vol. 52, No. 6, 2014, p. 490-495.

Research output: Contribution to journalArticle

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abstract = "BACKGROUND:: Cancer screening in individuals with limited life expectancy increases the risk of diagnosis and treatment of cancer that otherwise would not have become clinically apparent. OBJECTIVE:: To estimate screening mammography use in women with limited life expectancy, its geographic variation, and association with access to primary care and mammographic resources. METHODS:: We assessed screening mammography use in 2008-2009 in 106,737 women aged 66 years or older with an estimated life expectancy of <7 years using a 5{\%} national sample of Medicare beneficiaries. Descriptive statistics were used to estimate the screening mammography utilization, by access to primary care. RESULTS:: Among women with a life expectancy of <7 years, 28.5{\%} received screening mammography during 2008-2009. The screening rates were 34.6{\%} versus 20.5{\%} for women with and without an identifiable primary care physician, respectively. The screening rates were higher among women who saw >1 generalist physician and who had more visits to generalist physicians. There was substantial geographic variation across the United States, with an average rate of 39.5{\%} in the hospital referral regions (HRRs) in the top decile of screening versus 19.5{\%} in the HRRs in the bottom decile. The screening rates were higher among HRRs with more primary care physicians (r=0.14, P=0.02), mammography facilities (r=0.12, P=0.04), and radiologists (r=0.22, P<0.001). CONCLUSIONS:: Substantial proportions of women with limited life expectancy receive screening mammography. Results presented sound a cautionary note that greater access to primary care and mammographic resources is also associated with higher overuse.",
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N2 - BACKGROUND:: Cancer screening in individuals with limited life expectancy increases the risk of diagnosis and treatment of cancer that otherwise would not have become clinically apparent. OBJECTIVE:: To estimate screening mammography use in women with limited life expectancy, its geographic variation, and association with access to primary care and mammographic resources. METHODS:: We assessed screening mammography use in 2008-2009 in 106,737 women aged 66 years or older with an estimated life expectancy of <7 years using a 5% national sample of Medicare beneficiaries. Descriptive statistics were used to estimate the screening mammography utilization, by access to primary care. RESULTS:: Among women with a life expectancy of <7 years, 28.5% received screening mammography during 2008-2009. The screening rates were 34.6% versus 20.5% for women with and without an identifiable primary care physician, respectively. The screening rates were higher among women who saw >1 generalist physician and who had more visits to generalist physicians. There was substantial geographic variation across the United States, with an average rate of 39.5% in the hospital referral regions (HRRs) in the top decile of screening versus 19.5% in the HRRs in the bottom decile. The screening rates were higher among HRRs with more primary care physicians (r=0.14, P=0.02), mammography facilities (r=0.12, P=0.04), and radiologists (r=0.22, P<0.001). CONCLUSIONS:: Substantial proportions of women with limited life expectancy receive screening mammography. Results presented sound a cautionary note that greater access to primary care and mammographic resources is also associated with higher overuse.

AB - BACKGROUND:: Cancer screening in individuals with limited life expectancy increases the risk of diagnosis and treatment of cancer that otherwise would not have become clinically apparent. OBJECTIVE:: To estimate screening mammography use in women with limited life expectancy, its geographic variation, and association with access to primary care and mammographic resources. METHODS:: We assessed screening mammography use in 2008-2009 in 106,737 women aged 66 years or older with an estimated life expectancy of <7 years using a 5% national sample of Medicare beneficiaries. Descriptive statistics were used to estimate the screening mammography utilization, by access to primary care. RESULTS:: Among women with a life expectancy of <7 years, 28.5% received screening mammography during 2008-2009. The screening rates were 34.6% versus 20.5% for women with and without an identifiable primary care physician, respectively. The screening rates were higher among women who saw >1 generalist physician and who had more visits to generalist physicians. There was substantial geographic variation across the United States, with an average rate of 39.5% in the hospital referral regions (HRRs) in the top decile of screening versus 19.5% in the HRRs in the bottom decile. The screening rates were higher among HRRs with more primary care physicians (r=0.14, P=0.02), mammography facilities (r=0.12, P=0.04), and radiologists (r=0.22, P<0.001). CONCLUSIONS:: Substantial proportions of women with limited life expectancy receive screening mammography. Results presented sound a cautionary note that greater access to primary care and mammographic resources is also associated with higher overuse.

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