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Record W2567398013

Choosing Mastectomy: A Qualitative Exploration of the Increasing Mastectomy Rates in Women with Early-Stage Breast Cancer

2015· dissertation· en· W2567398013 on OpenAlexfundno aff
Andrea Covelli

Bibliographic record

VenueTSpace · 2015
Typedissertation
Languageen
FieldMedicine
TopicGlobal Cancer Incidence and Screening
Canadian institutionsnot available
FundersInstitute of Health Services and Policy ResearchCanadian Institutes of Health ResearchUniversity of Toronto
KeywordsMastectomyBreast cancerStage (stratigraphy)MedicineOncologyCancerGeneral surgeryInternal medicineBiology
DOInot available

Abstract

fetched live from OpenAlex

Context: Rates of Unilateral (UM) and contralateral prophylactic mastectomy (CPM) for early-stage breast cancer (ESBC) have been increasing. Numerous factors for this rise have been suggested including the surgeon's preference, the patient's choice and the external environment.\nObjectives: A grounded theory study explored women's decision-making processes in their treatment for ESBC, and elucidated the role of the surgeon and the practice environment in the increasing rates. The Health-Belief Model was applied, discerning those factors influential in surgical decision-making shaping women's choice for UM+/-CPM.\nDesign: Semi-structured interviews were conducted with patients to understand their experiences and decision-making which resulted in undergoing UM+/-CPM. Similarly, semi-structured interviews were conducted with general surgeons exploring their treatment approaches to ESBC. Theoretical sampling identified suitable candidates. Data were collected until saturation was reached. Constant comparative analysis identified key concepts. \nResults: 29 patients and 45 surgeons completed interviews. The `overwhelming threat' of breast cancer `was the dominant theme. Despite surgeons describing the high survivability of ESBC, patients misperceived the threat of death from their cancer, and strived to eliminate this threat by choosing UM+/-CPM. Surgeons described breast-conserving therapy (BCT) and UM as equivalent treatment options for ESBC, and frequently recommended BCT. Despite this, women requested UM+/-CPM. CPM was discouraged, as surgeons described no survival advantage and increased operative risks. \nExperiential knowledge was the most influential factor in patients' decision-making. Previous negative experiences of family and friends with breast cancer, translated into an overestimated risk of recurrence, contralateral cancer, metastasis and subsequent death. Patients' perceived the risks and severity of ESBC to be great, and believed that by choosing UM+/-CPM they would eliminate the threat of breast cancer. Most women did not perceive any risks of undergoing UM+/-CPM, yet many experienced concerns with disturbed skin sensation, cosmesis and body image.\nConclusion: Previous cancer experiences and experiential knowledge are extremely influential in women undergoing UM+/-CPM. Women overestimated their risk and misperceived the benefit of UM+/-CPM as they thought it would substantially improve their cancer outcomes. As undergoing UM+/-CPM is not without risks improved discussion of patient sources of information and fears around survival may benefit surgical consultations, facilitating informed decision-making.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Qualitative · Consensus signal: Qualitative
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.262
Threshold uncertainty score0.985

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.097
GPT teacher head0.435
Teacher spread0.338 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designQualitative
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2015
Admission routes1
Has abstractyes

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