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Older Adult Perspectives on Life Expectancy in Cancer Screening Decision Making: A Mixed-Methods Investigation
Older Adult Perspectives on Life Expectancy in Cancer Screening Decision Making: A Mixed-Methods Investigation
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105633
- ISBN
- 9798297644601
- DDC
- 614
- 서명/저자
- Older Adult Perspectives on Life Expectancy in Cancer Screening Decision Making: A Mixed-Methods Investigation
- 발행사항
- [Sl] : University of Michigan, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 208 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
- 주기사항
- Advisor: Zikmund-Fisher, Brian J.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2025.
- 초록/해제
- 요약Life expectancy estimates for older adults can inform preventive care decisions such as cancer screening by helping weigh potential risks, harms, benefits, and lag time to benefit tradeoffs that change as people age. Guidelines increasingly recommend that cancer screening decisions for older adults be based on life expectancy to help determine whether screening is appropriate. Despite this, use of life expectancy as a decision-making metric depends on acceptance from both clinicians and older adults. This dissertation used an explanatory sequential mixed-methods study design to investigate US older adults' perspectives on life expectancy estimates to guide cancer screening recommendations and decisions. Study 1 used data from the National Poll on Healthy Aging, a cross-sectional, nationally representative survey (n=1298) to quantitatively characterize older adults' (aged 65-80) attitudes and beliefs about life expectancy information and the acceptability of its use in clinical contexts. Studies 2 and 3 used in-depth qualitative interviews with older adults aged 65 and up (n=22; mean age = 74) to investigate their conceptual understanding of life expectancy and assess beliefs about the relevance of life expectancy in cancer screening decision making. Study 2 identified patterns and relationships in the data to develop a visual representation of how older adults conceptualize life expectancy and the utility of life expectancy estimates. Study 3 mapped older adult mental models of cancer screening decision making and compared it to an expert model to assess how older adults' screening decisions differ from current cancer screening guidelines. Findings from Study 1 suggest most older adults are interested in knowing their life expectancy, but very few are having conversations about it with clinicians to inform healthcare decisions. Despite interest in personal life expectancy, older adults disagree with the use of life expectancy in guidelines and certain care recommendations, and use of life expectancy appeared to be more acceptable to justify care rather than discontinue care. Study 2 found older adults have varied understandings of what life expectancy is and some have confusion and concerns about life expectancy conceptually. As a result, older adults held varied beliefs about whether and how life expectancy estimates should be used in medical decision making. Study 3 found that older adults look at cancer screening decisions through a fundamentally different lens than screening guidelines, one that overemphasizes benefits of screening and does not always believe life expectancy is appropriate or relevant to consider in cancer screening decisions. It is clear from this research that older adults in the US do not think about life expectancy in the same way as guidelines, clinicians, or even each other. As a result, they face considerable conceptual barriers to using life expectancy as a decision-making metric for cancer screening or other care decisions. Overall, findings caution against using life expectancy as an oversimplified metric, threshold, or all-inclusive indicator of health and aging for older adults in cancer screening decision making and strongly suggest the need for intentionality whenever the topic of life expectancy is brought up with older adults. Furthermore, insights from this dissertation provide justification for refining and improving clinician communication with patients about life expectancy and cancer screening to better consider the preferences and decisional factors that matter most to older adults.
- 일반주제명
- Public health
- 일반주제명
- Oncology
- 일반주제명
- Medicine
- 일반주제명
- Medical imaging
- 키워드
- Life expectancy
- 키워드
- Cancer screening
- 기타저자
- University of Michigan Hlth Behavior & Hlth Equit PhD
- 기본자료저록
- Dissertations Abstracts International. 87-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■0820 ▼a614
■1001 ▼aBrotzman, Laura E.
■24510▼aOlder Adult Perspectives on Life Expectancy in Cancer Screening Decision Making: A Mixed-Methods Investigation
■260 ▼a[Sl]▼bUniversity of Michigan▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a208 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-04, Section: B.
■500 ▼aAdvisor: Zikmund-Fisher, Brian J.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2025.
■520 ▼aLife expectancy estimates for older adults can inform preventive care decisions such as cancer screening by helping weigh potential risks, harms, benefits, and lag time to benefit tradeoffs that change as people age. Guidelines increasingly recommend that cancer screening decisions for older adults be based on life expectancy to help determine whether screening is appropriate. Despite this, use of life expectancy as a decision-making metric depends on acceptance from both clinicians and older adults. This dissertation used an explanatory sequential mixed-methods study design to investigate US older adults' perspectives on life expectancy estimates to guide cancer screening recommendations and decisions. Study 1 used data from the National Poll on Healthy Aging, a cross-sectional, nationally representative survey (n=1298) to quantitatively characterize older adults' (aged 65-80) attitudes and beliefs about life expectancy information and the acceptability of its use in clinical contexts. Studies 2 and 3 used in-depth qualitative interviews with older adults aged 65 and up (n=22; mean age = 74) to investigate their conceptual understanding of life expectancy and assess beliefs about the relevance of life expectancy in cancer screening decision making. Study 2 identified patterns and relationships in the data to develop a visual representation of how older adults conceptualize life expectancy and the utility of life expectancy estimates. Study 3 mapped older adult mental models of cancer screening decision making and compared it to an expert model to assess how older adults' screening decisions differ from current cancer screening guidelines. Findings from Study 1 suggest most older adults are interested in knowing their life expectancy, but very few are having conversations about it with clinicians to inform healthcare decisions. Despite interest in personal life expectancy, older adults disagree with the use of life expectancy in guidelines and certain care recommendations, and use of life expectancy appeared to be more acceptable to justify care rather than discontinue care. Study 2 found older adults have varied understandings of what life expectancy is and some have confusion and concerns about life expectancy conceptually. As a result, older adults held varied beliefs about whether and how life expectancy estimates should be used in medical decision making. Study 3 found that older adults look at cancer screening decisions through a fundamentally different lens than screening guidelines, one that overemphasizes benefits of screening and does not always believe life expectancy is appropriate or relevant to consider in cancer screening decisions. It is clear from this research that older adults in the US do not think about life expectancy in the same way as guidelines, clinicians, or even each other. As a result, they face considerable conceptual barriers to using life expectancy as a decision-making metric for cancer screening or other care decisions. Overall, findings caution against using life expectancy as an oversimplified metric, threshold, or all-inclusive indicator of health and aging for older adults in cancer screening decision making and strongly suggest the need for intentionality whenever the topic of life expectancy is brought up with older adults. Furthermore, insights from this dissertation provide justification for refining and improving clinician communication with patients about life expectancy and cancer screening to better consider the preferences and decisional factors that matter most to older adults.
■590 ▼aSchool code: 0127.
■650 4▼aPublic health
■650 4▼aOncology
■650 4▼aMedicine
■650 4▼aMedical imaging
■653 ▼aLife expectancy
■653 ▼aMedical decision making
■653 ▼aCancer screening
■653 ▼aHealthcare decisions
■690 ▼a0573
■690 ▼a0574
■690 ▼a0992
■690 ▼a0564
■690 ▼a0769
■71020▼aUniversity of Michigan▼bHlth Behavior & Hlth Equit PhD.
■7730 ▼tDissertations Abstracts International▼g87-04B.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360884▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


