Dataset Information

[Validation of the Informed Choice instrument for Chilean women facing a mammography decision in primary care].

ABSTRACT:

Objective

To adapt and validate for the Chilean context the instrument Informed Choice (IC) to measure informed decision for mammography.

Location

Primary Health Care Center in southeast Santiago, Chile.

Design

Individual, transversal, analytical and psychometric adaptation and validation study.

Methods

We 1) translated and back-translated IC; 2) conducted a focus group for cultural/linguistic relevance; 3) reviewed content validity; 4) piloted the instrument; 5) applied IC for validation. Analysis was performed by using Cronbach alpha, correlation, Bartlett's test of sphericity, Kaiser-Meyer-Olkin measure and factor analysis.

Results

Three versions of the IC were developed, which included changes according to the views of users and experts. Validation was conducted in a sample of 70 women. Mean age was 54,4 years, 47,1% had completed secondary school and 92,9% have had at least one mammography. After factor analysis item 1 was removed and the final Cronbach Alpha was 0,79.

Conclusions

The Chilean IC is reliable to measure decision women for mammography, this evaluate knowledge, attitude and intention towards the screening. The validation of an instrument to the cultural context is necessary and may have any variations to the original version according to local needs.

SUBMITTER: Bravo P

PROVIDER: S-EPMC7893429 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

[Validation of the Informed Choice instrument for Chilean women facing a mammography decision in primary care].

Bravo Paulina P Dois Angelina A Fernández-González Loreto L Hernández-Leal María José MJ Villarroel Luis L

Atencion primaria 20210213 3

<h4>Objective</h4>To adapt and validate for the Chilean context the instrument Informed Choice (IC) to measure informed decision for mammography.<h4>Location</h4>Primary Health Care Center in southeast Santiago, Chile.<h4>Design</h4>Individual, transversal, analytical and psychometric adaptation and validation study.<h4>Methods</h4>We 1) translated and back-translated IC; 2) conducted a focus group for cultural/linguistic relevance; 3) reviewed content validity; 4) piloted the instrument; 5) app ...[more]

PMID: 33592532

Similar Datasets

Project description:Decision aids can support informed choice in mammography screening, but for the German mammography screening programme no systematically evaluated decision aid exists to date. We developed a decision aid for women invited to this programme for the first time based on the criteria of the International Patient Decision Aids Standards Collaboration.To determine whether a decision aid increases informed choice about mammography screening programme participation.A representative sample of 7,400 women aged 50 was drawn from registration offices in Westphalia-Lippe, Germany. Women were randomised to receive usual care (i.e., the standard information brochure sent with the programme's invitation letter) or the decision aid. Data were collected online at baseline, post-intervention, and 3 months follow-up. The primary outcome was informed choice. Secondary outcomes were the constituents of informed choice (knowledge, attitude, intention/uptake), decisional conflict, decision regret, and decision stage. Outcomes were analysed using latent structural equation models and ?2-tests.1,206 women participated (response rate of 16.3%). The decision aid increased informed choice. Women in the control group had lower odds to make an informed choice at post-intervention (OR 0.26, 95% CI 0.18-0.37) and at follow-up (OR 0.66, 95% CI 0.46-0.94); informed choices remained constant at 30%. This was also reflected in lower knowledge and more decisional conflict. Post-intervention, the uptake intention was higher in the control group, whereas the uptake rate at follow-up was similar. Women in the control group had a more positive attitude at follow-up than women receiving the decision aid. Decision regret and decision stage were not influenced by the intervention.This paper describes the first systematic evaluation of a newly developed decision aid for the German mammography screening programme in a randomised controlled trial. Our decision aid proved to be an effective tool to enhance the rate of informed choice and was made accessible to the public.German Clinical Trials Register DRKS00005176.

Project description:BackgroundInformed choice is of ethical and practical importance in mammography screening. To assess the level to which decisions regarding such screening are informed is thus imperative, but no specific instrument has been available to measure informed choice in the German mammography screening programme. The aims of this study were to develop the Informed Choice in Mammography Screening Questionnaire (IMQ) and to find first evidence for the factor structure, reliability and validity of its different components.MethodsThe IMQ was sent to 17.349 women aged 50 in Westphalia-Lippe, Germany. The instrument has been developed after consideration of (1) the results of qualitative interviews on decision making in the mammography screening programme, (2) relevant literature on other informed choice instruments and (3) a qualitative study on influencing factors. The IMQ comprises 3 scales (attitude, norms, and barriers), 1 index (knowledge) and singular items covering intention to participate and sociodemographic variables. To assess the psychometric properties of the components of the IMQ, confirmatory factor and item response theory analyses were conducted. Additionally, reliability, validity and item statistics were assessed.Results5.847 questionnaires were returned (response rate 33.7%). For attitude, the confirmatory factor analysis supported a one-factor structure. For norms, the model fit was not acceptable. Reliability levels were good with a Cronbach's α of.793 for attitude (4 items) and.795 for norms (5 items). For barriers, 9 items were deleted because of low discrimination indices; 6 items remained. The hypothesised assumption-subscale and the importance-subscale were confirmed, but these subscales showed poor reliabilities with Cronbach's α=.525 (4 items) and.583 (2 items). For the knowledge index, item response theory analysis showed that 6 out of 7 items were suitable. Hypotheses concerning the correlations between the different components were confirmed, which supported their convergent and divergent validity.ConclusionThe results of this study demonstrated that the IMQ is a multidimensional instrument. Further development of the barriers and norms scales is necessary. The IMQ can be utilised to assess the level of informed choices as well as influencing factors.

Project description:BACKGROUND:We previously developed a pamphlet decision aid (DA) on mammography screening for women ≥ 75 years. However, implementing DAs in primary care may be challenging and may require support from non-physician healthcare team members. OBJECTIVE:To learn from primary care administrators, nurses, and staff their thoughts on how best to implement a mammography DA for women ≥ 75 years in practice. DESIGN:Qualitative study entailing in-person individual interviews using a semi-structured interview guide. PARTICIPANTS:Thirty-two non-physician healthcare team members (69.6% of those approached) participated from 8 different primary care practices (community and academic) in the Boston area or in Chapel Hill, NC. APPROACH:Participants were asked to provide feedback on the DA, their thoughts on ways to make the DA available to older women, and factors that would make it easier and/or harder to implement. KEY RESULTS:Participants felt the DA was clear, balanced, and understandable, but felt that it needed to be shorter for women with low health literacy. Most participants felt that as long as use of the DA was approved and supported by clinicians that women ≥ 75 years should receive the DA before a visit from staff (usually medical assistants) so that patients could ask their clinicians questions during the visit. Facilitators of DA use included its perceived helpfulness with decision-making, its format, and that existing systems (panel management, electronic medical record alerts) could be accessed to get the DA to patients especially at Medicare Annual Wellness visits. Participants perceived a need for training, albeit minimal, to provide the DA to patients. Barriers of DA use included competing demands on clinician and staff time. CONCLUSIONS:Participants felt that as long as use of the mammography DA for women ≥ 75 years was supported by clinicians, it would be feasible to implement with minimal refinements to existing healthcare system processes.

Dataset Information

[Validation of the Informed Choice instrument for Chilean women facing a mammography decision in primary care].

Objective

Location

Design

Methods

Results

Conclusions

Publications

[Validation of the Informed Choice instrument for Chilean women facing a mammography decision in primary care].

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets