Research

The effectiveness of a proven chronic disease prevention and screening intervention in diverse and remote primary care settings: an implementation study on the BETTER 2 Program

Kris Aubrey-Bassler, Carolina Fernandes, Carla Penney, Richard Cullen, Christopher Meaney, Nicolette Sopcak, Denise Campbell-Scherer, Rahim Moineddin, Julia Baxter, Paul Krueger, Margo Wilson, Andrea Pike, Eva Grunfeld and Donna Manca
BJGP Open 2019; 3 (3): bjgpopen19X101656. DOI: https://doi.org/10.3399/bjgpopen19X101656

Abstract

Background The Building on Existing Tools to Improve Chronic Disease Prevention and Screening in Primary Care (BETTER) randomised control trial (RCT) showed that the BETTER Program improved chronic disease prevention and screening (CDPS) by 32.5% in urban team-based primary care clinics.

Aim To evaluate outcomes from implementation of BETTER in diverse clinical settings.

Design & setting An implementation study was undertaken to apply the CDPS intervention from the BETTER trial to diverse settings in BETTER 2. Patients aged 40–65 years were invited to enrol in the study from three clinics in Newfoundland and Labrador, Canada.

Method At baseline, eligibility for 27 CDPS actions (for example, cancer, diabetes and hypertension screening, lifestyle) was determined. Patients then met with a trained provider and prioritised goals to address their eligible CDPS actions. Providers received training in behaviour change theory and practice. Descriptive analysis of clinical outcomes and success factors were reported.

Results A total of 154 patients (119 female and 35 male) had a baseline visit; 106 had complete outcome assessments, and the remainder had partial outcome assessments. At baseline, patients were eligible for a mean of 12.3 CDPS actions and achieved a mean of 6.0 (49%, 95% confidence intervals [CI] = 24% to 74%) at 6-month follow-up, including reduced hypertension (86% of eligible patients, 95% CI = 67% to 96%), weight control (51% of eligible patients, 95% CI = 42% to 60%), and smoking cessation (36% of eligible patients, 95% CI = 17% to 59%). Male, highly educated, and lower income individuals achieved a higher proportion of CDPS manoeuvers than their counterparts.

Conclusion Clinical outcomes from this implementation study were comparable with those of the prior BETTER RCT, providing support for the BETTER Program as an effective approach to CDPS in more diverse general practice settings.

How this fits in

Family physicians lack the time and resources to effectively address all CDPS guidelines during routine patient visits. In the BETTER pragmatic cluster RCT, a novel approach to CDPS led by a non-physician provider improved the achievement of CDPS activities by more than 30% compared with usual care in the general practice setting. In this study, BETTER 2, the adaptation of the intervention was explored in more diverse clinical settings. This article presents the quantitative clinical outcomes from BETTER 2.

Introduction

The prevalence of chronic disease is increasing at a dramatic rate, and a large proportion of these diseases are avoidable, yet health systems continue to focus overwhelmingly on the treatment rather than prevention of these diseases.1 Evidence suggests that prevention programmes can be successful, but widespread implementation has been lacking in part because primary care physicians lack the time and resources to do so.2 In addition, with 45% of people having multiple chronic conditions, primary care providers need effective tools to be able to address this complexity.3 Unfortunately, evidence-based guidelines are often focused on only one specific risk factor or condition, which makes it difficult for providers to be able to assess and address the unique needs of their patients.4,5 What is needed is a comprehensive, evidence-based approach to CDPS that bridges the gap between CDPS and practice.5 The BETTER Program meets these criteria (Box 1). The clinical effectiveness of this approach was shown in the BETTER pragmatic cluster RCT, hereafter referred to as the BETTER trial.6 The patient-level intervention component of the trial improved CDPS by 32.5% relative to usual care. This component was led by a 'prevention practitioner' (PP), who met with patients within the practice setting. The PP used the BETTER trial tools and a process of shared decision-making to create a tailored 'prevention prescription' for each participant. PPs had professional backgrounds as nurse practitioners, registered nurses, licensed practical nurses, or dieticians, and they developed additional, specialised skills in CDPS and behaviour change in order to deliver the BETTER intervention. Qualitative7 and cost-effectiveness6 analyses of the PP intervention for the BETTER trial showed positive results, providing strong support for further exploration of the PP intervention as a viable approach to CDPS in general practice.

Box 1

The BETTER 2 tools (available at http://www.better-program.ca/practice-resources/)

View this table:

The BETTER trial sample was predominantly white, female, well-educated, with mid-to-high household income, living in two Canadian urban centres.6 The objective of the current study, BETTER 2, was to adapt and study the implementation of the successful CDPS intervention from the BETTER trial in rural, remote, and underserved populations from Newfoundland and Labrador, Canada. This article reports on the clinical outcomes from BETTER 2. A description of tool adaptation8 and an assessment of participant satisfaction9 are published elsewhere.

Method

Setting

Using the existing network of fellow clinicians and administrators in the regional health authorities from the BETTER Program, three primary care practices were identified in Newfoundland and Labrador serving populations that differed significantly from those enrolled in the BETTER trial.6 The BETTER trial population reflected primarily urban, middle-class individuals with a mid-to-high household income; therefore, BETTER 2 was implemented in more diverse settings, including rural and remote areas, to capture individuals with lower income and/or from disadvantaged settings. As a result, the chosen settings were: 1) a primary care clinic attached to a hospital in an remote town serving a proportionately large indigenous population; 2) a rural shared-care family physician and nurse practitioner practice serving two small towns, approximately 90 minutes from an urban centre; and 3) an urban academic family practice that cared for a high proportion of immigrants and refugees in the provincial capital city. A PP identified by, or appointed to, each site was trained by the BETTER Program team to deliver the intervention using the toolkit developed for the BETTER 2 study8 and brief action planning (see below for description).10

Patients and recruitment

Patients aged 40–65 years were invited to enroll in the programme using a combination of waiting-room posters, mailed flyers, clinician referral, local newspaper advertisements, and mail-out invitations. Interested patients contacted the participating clinic to schedule their appointment. At the first visit, the PP provided the patient with the written consent form, which was explained by the PP and signed by the patient after addressing any questions the patient had. To maximise generalisability, there were minimal exclusion criteria. Patients were excluded if they were unable to give informed consent for reasons of language, literacy, or competency, and if they were not able to attend the initial PP visit in person at their primary care site (for example, because of issues with mobility).

Design and intervention

The intervention termed the 'patient-level intervention with a prevention practitioner' was identical to that used in the BETTER trial,6 with the exceptions described below. The tools originally developed by the BETTER team and used for the BETTER trial intervention were updated for use in BETTER 2 ('the BETTER 2 tools')8 and are described in Box 1. Patients were mailed a copy of the BETTER Health Survey (further information available from the author on request) by the clinic after booking their first appointment and were asked to bring a completed copy to the visit. The original BETTER Health Survey consisted of 88 items, and included an assessment of physical activity and a dietary assessment derived from MEDFICTs, an instrument with a focus primarily on fat intake.11,12 The health survey was refined for use in BETTER 2 based on feedback received following the BETTER trial which suggested that it could be streamlined and reformatted to improve data capture and usability. The health survey was shortened from 88 to 69 items to better capture information on modifiable lifestyle risk factors (for example, smoking, alcohol use, diet and nutrition, and physical activity) as well as assessments of the patient’s readiness to change. In particular, the changes included a general practice activity questionnaire (GPPAQ) to better capture and determine the patient's level of activity; a validated tool for dietary assessment and intervention called 'starting the conversation' was added to provide insight into patients’ eating behaviour and information on how diet can be improved; and alcohol consumption was quantitatively measured using guidelines according to the National Institute on Alcohol Abuse and Alcoholism.8 The survey also included a screening tool, the AUDIT-C, for screening and educating patients on alcohol use disorders.8 Participants who reported having difficulty with the survey completed it with the assistance of the PP. The PP would read the survey questions and answers to the patient who would verbally respond; if a patient was uncomfortable with answering a question, they could opt to skip the question. PPs reviewed the survey and the patient chart before meeting with the patient. The survey was designed to acquire information that is not typically recorded in the chart. Collectively, these two sources were used to learn about each patient’s overall health, including information on physical activity, smoking, alcohol consumption, diet, cancer, chronic disease, and family history. In the lifestyle section of the survey, patients also indicated their readiness to and confidence about change on these domains.

The PP then conducted a 60-minute clinical consultation about CDPS, and recorded information relevant to the patient’s chronic disease risk, including their status on screening for chronic disease and associated lifestyle factors, on a 'prevention prescription' (further information available from the author on request). Using shared decision-making and the principles of brief action planning,10 the PP and patient collaboratively set up to three goals to address the patient’s prevention and screening, and recorded them on the patient’s Goal Sheet (further information available from the author on request). Brief action planning is an approach that is based on motivational interviewing. It is a self-management support tool for chronic conditions, health, and wellbeing that involves a structured step-by-step process to help individuals set goals and make concrete action plans. It is structured around three core questions: question one is asked to elicit ideas for change; question two is asked to evaluate confidence; and question three is to arrange follow-up or accountability.10 Each PP is trained in brief action planning (provided by the Centre for Collaboration, Motivation and Innovation [CCMI]) and used these principles along with shared decision-making to help patients make realistic, attainable goals for their health. Follow-up visits to review the prevention prescription and goals were scheduled every 6 months for 12–18 months. Before the second visit, patients completed a brief version of the BETTER Health Survey and the PP reviewed the patient’s chart again to assess outcomes. Second visits were typically 15–30 minutes long and were conducted via telephone or in person, based on patient preference and convenience.

Outcomes

The primary outcome for this study was a composite index comprised of 27 CDPS actions, including process, referral and/or treatment, and lifestyle target, and/or change items (further information available from the author on request). Actions included in the outcome were identified by the BETTER clinical working group before implementation using a comprehensive evidence synthesis of high-quality international, national, and provincial guidelines and recommendations for the chronic diseases in scope for the BETTER Program, including associated lifestyle factors;5 the list was updated for BETTER 2.8 At baseline, PPs used the BETTER Health Survey and the medical record (for example, laboratory testing, procedure reports) to determine whether the patient was eligible (that is, overdue or off-target) for each action. These items formed the list of eligible actions for that patient. The quantitative clinical study outcome was the proportion of eligible actions that were completed at 6-month follow-up. Baseline eligibility and achievement criteria for the 27 actions are available from the authors on request. The outcome for BETTER 2 was modified slightly from the BETTER trial6 outcome to reflect updated screening guidelines and lifestyle recommendations, and to improve clinical relevance.

Statistical analysis

For the BETTER Program evaluation, patient and practice characteristics were summarised using means and standard deviations (SDs) for continuous variables, and counts and percentages for categorical variables. Exact binomial CIs were used to characterise variability in the achievement of individual actions from within the composite outcome. Noting that patient-level responses were nested and/or clustered within physicians in this study design, linear generalised estimating equation (GEE) models were used to investigate the impact of patient-level covariates on composite outcome. Both bivariate and multivariate linear GEE models were estimated and estimated regression coefficients, 95% CIs, and P values from these models have been reported. All analyses were conducted using SAS software (version 9.4).

Results

A total of 154 patients were enrolled and attended a baseline visit with a PP. One hundred and six (69%) participants attended a follow-up visit before the study end date. The average duration from baseline to follow-up visit was 217.4 days. Medical records were reviewed to assess achievement of as many prevention and screening targets as possible for the 48 patients who did not attend a follow-up visit. Table 1 describes the demographic characteristics of the BETTER trial and BETTER 2. Participants enrolled in BETTER 2 were largely female (77%, n = 119) with an average age of 56 years (SD ±5.8 years). Most (67%, n = 103) were white but, unlike the BETTER trial, the second most common ethnic group was indigenous (18%, n = 28). A majority of participants had some college or university education and 55% (n = 84) were fully employed, with an average family or household income >$60 000 per year (CAD, 72%). The demographic characteristics of participants enrolled in BETTER 2 are similar to those who participated in the BETTER trial, with the exception of a higher recruitment rate of indigenous participants. Table 2 describes the achievement of CDPS goals. BETTER 2 patients were eligible for a mean of 12.3 CDPS actions at baseline; that is, patients were overdue or off-target for an average 12.3 evidence-based manoeuvers at the time of their first visit with the PP. At the time of the follow-up visit, patients completed an average of 6.0 (49%) of those manoeuvers for which they were eligible. The number of patients eligible for each of the 27 actions included in the composite outcome ranged from 2 to 147 (Table 3). In the adjusted analysis, men, non-smokers, lower income, and more highly educated patients improved on the composite index to a greater degree than their counterparts. See Table 4 for these and other results of the bivariate and multivariate regression analyses.

View this table:
Table 1. Selected baseline characteristics of the BETTER trial and BETTER 2 participants
View this table:
Table 2. Prevention and screening actions by study (BETTER trial, BETTER 2) and randomisation groupa
View this table:
Table 3. Eligibility and achievement of individual prevention and screening actions
View this table:
Table 4. Demographic and clinical characteristics associated with differences in composite outcome score

Discussion

Summary

Together with the results of the BETTER trial, this programme evaluation provides further support that the BETTER Program can be an effective approach to prevention in the real-world setting. The annual physical exam, traditionally used as an approach to deliver preventative care, has not been effective at achieving improvements to health.13 The sample in BETTER 2 presented with more health and social challenges, with an average of 12.3 eligible actions per patient, compared with the BETTER trial, where patients were eligible for an average of 8.9 actions. Despite this, the average achievement of prevention and screening targets in the current study (49%; 6.0 actions) was broadly comparable with that from the BETTER RCT (54%; 4.7 actions). In the BETTER 2 implementation study, a control group was not compared to, but the usual care control group in the BETTER trial achieved just 21.1% of eligible actions.6 Improvements in screening tests were observed that are relatively easy to achieve (for example, diabetes and hypertension screening), but changes on important items that have a very well-established connection to improved health, such as improvements in low-density lipoprotein cholesterol, blood pressure, physical activity, obesity, smoking rates, and alcohol misuse, were also observed (Table 2).

Multivariate analysis of the results demonstrated a compelling observation that participants were able to make improvements to their lifestyle and screening irrespective of income, sex, or ethnic group. Furthermore, it was found that income was inversely proportional to the improvement in CDPS, and that men were more successful in achieving their CDPS goals than women.

Strengths and limitations

Although the three BETTER 2 study clinics were selected based on the intention to target more underserved patients than those enrolled in the BETTER trial, the success was modest in this regard. Indigenous patients were recruited from a remote region and patients from a rural clinic were recruited. However, despite including an urban practice, with a high proportion of patients who live in poverty, the patients enrolled from that practice tended to be well-educated, with relatively high incomes (Table 1). The rural clinic site recruited several participants with lower incomes, but this site experienced significant provider turnover during the study period, which negatively affected the recruitment and retention of patients in the study. Interestingly, this same clinic has had a stable provider population for the last few years and has successfully delivered the BETTER intervention to over 60 patients outside of the research setting in the last few months. The qualitative factors affecting implementation and uptake of the programme,9 and patients’ perspectives of the intervention,14 are explored elsewhere, but these studies did not identify reasons for the difficulties experienced reaching underserved populations with this programme.

Because the primary objective of BETTER 2 was to examine factors affecting implementation and uptake of the programme in diverse clinical settings, it did not include a control group. However, given that these results are similar to those from the BETTER trial, it is reasonable to conclude that some of the observed benefits were a result of the intervention. A second limitation is that items in the composite index included process measures, referral to other CDPS resources, and measures of behaviour change, but these were considered equally in the composite outcome rather than weighted based on their ability to impact health.

Comparison with existing literature

Several reviews suggest that lifestyle interventions in primary care are of limited success,15,16 but results are mixed.17 In addition to factors documented in the authors’ prior work,9,17 the literature supports specific aspects of BETTER, which are likely critical to the success of the programme. First, the consensus from the psychological literature is that a non-confrontational interviewing style, which includes active listening, assessment of readiness for change, and discussion of reasons for change, increases the likeliness of behaviour change.10,18,19 A comprehensive assessment of health risk at baseline and specially trained providers who personalise the approach for patients may also be important for success.6,17

The setting and participant sample also appear to play a role in determining the success of these programmes. A previous study found that a lifestyle intervention designed to be delivered as part of a regular primary care provider consultation did not demonstrate the health benefits expected of it,20 although this may be owing to the short duration of each visit. Interventions dedicated solely to prevention, including the one described in this article, appear more likely to demonstrate a measurable positive change in patient health practices.6,17,21–26 These pre-scheduled prevention visits likely attract a patient population with greater 'readiness for change’27 than brief interventions that are offered during a regular visit. Although this introduces a selection bias, it may be wise to limit participation to patients who have a greater commitment to change given the resources needed for a longer intervention. In the BETTER studies, it was found that pre-scheduling the BETTER intervention and having the visits clearly dedicated to prevention were important for success.6,9 This may be easiest to accomplish if the PP is not the person most responsible for the patient’s ongoing care and/or if the PP is not trained to diagnose, because there will likely be less of a tendency for acute health issues to monopolise the available appointment time. This is the model usually used in the BETTER research studies. However, it has been observed that both acute and preventative care can be offered by the same provider with careful organisation and by communicating the goals of the appointment clearly to patients.

Implications for research and practice

In the BETTER studies so far, the PPs have had prior training as registered nurses, licensed practical nurses, dieticians, or nurse practitioners. Although all of these individuals performed well in the role, providers with training in diagnosis and investigation had to be cautious to maintain the focus of the appointment on prevention and screening. Because existing CDPS evidence has been incorporated into the BETTER tools, the PPs do not require prior education or in-depth knowledge of the evidence behind the tools. Thus, in keeping with the desire to maximise the scope of health worker practice, the PP role can be assumed by professionals that do not have education in diagnosis and investigation, such as licensed practical nurses.

This study adds additional support to existing evidence from the BETTER trial,6 showing that a multifaceted intervention led by a non-physician prevention practitioner can lead to significant improvements in CDPS. The BETTER approach harmonises existing evidence on disease screening, lifestyle factors, and behaviour change, and has successfully translated it into actionable, evidence-based clinical tools. Together, the BETTER tools can be used to comprehensively assess health risks and influence behaviour change using shared decision-making and brief action planning. Resources have been developed and published to train providers on how to deliver this intervention; interested clinicians will find contact information and further resources on the BETTER Program website.28 The BETTER team is now conducting a second pragmatic RCT with an enhanced intervention that includes cancer surveillance.

Notes

Funding

This research was made possible through a financial contribution from Health Canada through the Canadian Partnership Against Cancer. EG is supported by a clinician scientist award from the Ontario Institute for Cancer Research (OICR) with funds from the Ontario Ministry of Research and Innovation (MRI). The opinions, results, and conclusions reported herein are those of the authors and do not necessarily reflect the views of the funders. No endorsement by OICR or MRI is intended or should be inferred.

Ethical approval

Research ethics board approval was obtained from the Health Research Ethics Authority of Newfoundland and Labrador (reference number: 12.215). All individuals included in the study gave their written informed consent for participation.

Provenance

Freely submitted; externally peer reviewed.

Acknowledgements

The authors would like to acknowledge the BETTER 2 prevention practitioners and the Centre for Collaboration, Motivation and Innovation (CCMI) for training the prevention practitioners on brief action planning.

Competing interests

The authors declare that no competing interests exist.

  • Received April 9, 2019.
  • Accepted May 10, 2019.

This article is Open Access: CC BY license (https://creativecommons.org/licenses/by/4.0/)

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BJGP Open
Vol. 3, Issue 3
October 2019
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The effectiveness of a proven chronic disease prevention and screening intervention in diverse and remote primary care settings: an implementation study on the BETTER 2 Program
Kris Aubrey-Bassler, Carolina Fernandes, Carla Penney, Richard Cullen, Christopher Meaney, Nicolette Sopcak, Denise Campbell-Scherer, Rahim Moineddin, Julia Baxter, Paul Krueger, Margo Wilson, Andrea Pike, Eva Grunfeld, Donna Manca
BJGP Open 2019; 3 (3): bjgpopen19X101656. DOI: 10.3399/bjgpopen19X101656
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British Journal of General Practice