Evidence map›Paper›PMID 33948777›Full record

ArticleBreast cancer research and treatment2021

Facilitators and barriers to medication adherence with adjuvant endocrine therapy in women with breast cancer: a structural equation modelling approach.

Eng Hooi Tan, Andrea Li Ann Wong, Chuan Chien Tan, Patrick Wong, Sing Huang Tan, Li En Yvonne Ang, Siew Eng Lim, Wan Qin Chong, Jingshan Ho, Soo Chin Lee and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Breast cancer research and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Effect of telehealth interventions on adherence to endocrine therapy among patients with breast cancer: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Observational
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Eng Hooi TanSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, 12 Science Drive 2, #10-03F, Singapore, 117549, Singapore.
Andrea Li Ann WongDepartment of Haematology-Oncology, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Chuan Chien TanDepartment of General Surgery, Ng Teng Fong General Hospital, 1 Jurong East Street 21, Singapore, 609606, Singapore.
Patrick WongDivision of Oncology Pharmacy, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Sing Huang TanOncoCare Cancer Centre, 6 Napier Road, #02-17/18/19, Gleneagles Medical Centre, Singapore, 258499, Singapore.
Li En Yvonne AngDepartment of Haematology-Oncology, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Siew Eng LimDepartment of Haematology-Oncology, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Wan Qin ChongDepartment of Haematology-Oncology, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Jingshan HoDepartment of Haematology-Oncology, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Soo Chin LeeDepartment of Haematology-Oncology, National University Cancer Institute, NUHS, Tower Block Level 7, 1E Kent Ridge Road, Singapore, 119228, Singapore.
Bee Choo TaiSaw Swee Hock School of Public Health, National University of Singapore and National University Health System, 12 Science Drive 2, #10-03F, Singapore, 117549, Singapore. ephtbc@nus.edu.sg.ORCID http://orcid.org/0000-0002-4420-7746
National University Cancer Institute, Singapore · SGNational University of Singapore · SGGleneagles Hospital · SGNg Teng Fong General Hospital · SG

Funding

National University Cancer Institute Singapore Centre Grant Seed Funding Program (Aug 2014 Grant Call)National University Health System Bridging Funds FY17Singapore Cancer Society Cancer Research Grant 2014
6 · The paper itself

Abstract

purposeTo identify a structure to explain the relationship between socio-clinico factors, necessity-concerns beliefs, and perceived barriers to adherence with adjuvant endocrine therapy (AET) amongst women with breast cancer.

methodsParticipants were 244 patients with early-stage breast cancer recruited from two tertiary hospitals from May 2015 to December 2018 who completed questionnaires on medication adherence (Simplified Medication Adherence Questionnaire), necessity-concerns beliefs (Beliefs about Medicine Questionnaire), and barriers to adherence (Adherence Starts with Knowledge Questionnaire). Socio-clinico variables were collected via interview and medical records review. Structural equation modelling was applied to examine the relationships between these variables and possible mediating effects of necessity-concerns beliefs on adherence to AET.

resultsThe median age of the study participants was 61 (range 32-80) years and the median duration on AET was 1.6 (IQR 1.2-2.6) years. Adherence was positively associated with age (β = 0.145, 95% CI: 0.011 to 0.279, p = 0.034) and negatively associated with barriers (β = - 0.381, 95% CI: - 0.511 to - 0.251, p < 0.001). There was no effect of Necessity (β = 0.006, 95% CI: - 0.145 to 0.158, p = 0.933) or Concerns (β = 0.041, 95% CI: - 0.117 to 0.199, p = 0.614) on adherence. Necessity-concerns beliefs were also not significant mediators in the relationship between socio-clinico factors and medication adherence.

conclusionsOlder age and lower barriers to adherence were associated with higher adherence scores. Necessity-concerns beliefs did not have a significant effect on adherence as majority of the patients identified forgetfulness as a reason for non-adherence.

Indexed as

Antineoplastic Agents, HormonalBreast NeoplasmsAdultAgedAged, 80 and overCombined Modality TherapyFemaleHealth Knowledge, Attitudes, PracticeHumansLatent Class AnalysisMedication AdherenceMiddle AgedSurveys and QuestionnairesAntineoplastic Agents, HormonalAdherenceAdjuvant endocrine therapyBreast cancerNecessity-concerns frameworkStructural equation modelling

Identifiers

PMID33948777
OpenAlexW3159952590

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.