Nature, availability, and utilization of women-focused cardiac rehabilitation: a systematic review

Clinical Effectiveness and Utilisation of Cardiac Rehabilitation After Hospital Discharge: Data Linkage Analysis of 84,064 Eligible Discharged Patients (2016-2021)

BACKGROUND

Despite the highest levels of evidence on cardiac rehabilitation (CR) effectiveness, its translation into practice is compromised by low participation.

AIM

This study aimed to investigate CR utilisation and effectiveness in South Australia.

METHODS

This retrospective cohort study used data linkage of clinical and administrative databases from 2016 to 2021 to assess the association between CR utilisation (no CR received, commenced without completing, or completed) and the composite primary outcome (mortality/cardiovascular re-admissions within 12 months after discharge). Cox survival models were adjusted for sociodemographic and clinical data and applied to a population balanced by inverse probability weighting. Associations with non-completion were assessed by logistic regression.

RESULTS

Among 84,064 eligible participants, 74,189 did not receive CR, with 26,833 of the 84,064 (31.9%) participants referred. Of these, 9,875 (36.8%) commenced CR, and 7,681 of the 9,875 (77.8%) completed CR. Median waiting time from discharge to commencement was 40 days (interquartile range, 23-79 days). Female sex (odds ratio [OR] 1.12; 95% CI 1.01-1.24; p=0.024), depression (OR 1.17; 95% CI 1.05-1.30; p=0.002), and waiting time >28 days (OR 1.15; 95% CI 1.05-1.26; p=0.005) were associated with higher odds of non-completion, whereas enrolment in a telehealth program (OR 0.35; 95% CI 0.31-0.40; p<0.001) was associated with lower odds of non-completion. Completing CR (hazard ratio [HR] 0.62; 95% CI 0.58-0.66; p<0.001) was associated with a lower risk of 12-month mortality/cardiovascular re-admissions. Commencing without completing was also associated with decreased risk (HR 0.81; 95% CI 0.73-0.90; p<0.001), but the effect was lower than for those completing CR (p<0.001).

CONCLUSIONS

Cardiac rehabilitation (CR) attendance is associated with lower all-cause mortality/cardiovascular re-admissions, with CR completion leading to additional benefits. Quality improvement initiatives should include promoting referral, women's participation, access to telehealth, and reduction of waiting times to increase completion.

Evidence-informed development of women-focused cardiac rehabilitation education

BACKGROUND

Despite their differential risk factor burden, context and often different forms of heart disease, cardiac rehabilitation (CR) programs generally do not provide women with needed secondary prevention information specific to them.

OBJECTIVE

to co-design evidence-informed, theory-based comprehensive women-focused education, building from Health e-University's Cardiac College for CR.

METHODS

A multi-disciplinary, multi-stakeholder steering committee (N = 18) oversaw the four-phase development of the women-focused curriculum. Phase 1 involved a literature review on women's CR information needs and preferences, phase 2 a CR program needs assessment, phase 3 content development (including determining content and mode, assigning experts to create the content, plain language review and translation), and phase 4 will comprise evaluation and implementation. In phase 2, a focus group was conducted with Canadian CR providers; it was analyzed using Braun and Clarke's iterative approach.

RESULTS

Nineteen providers participated in the focus group, with four themes emerging: current status of education, challenges to delivering women-focused education, delivery modes and topical resources. Results were consistent with those from our related global survey, supporting saturation of themes. Co-designed educational materials included 19 videos. These were organized across 5 webpages in English and French, specific to tests and treatments, exercise, diet, psychosocial well-being, and self-management. Twelve corresponding session slide decks with notes for clinicians were created, to support program delivery in CR flexibly.

CONCLUSION

While further evaluation is underway, these open-access CR education resources will be disseminated for implementation, to support women in reducing their risk of cardiovascular sequelae.

Women-Focused Cardiac Rehabilitation Delivery Around the World and Program Enablers to Support Broader Implementation

Background

Women are less likely than men to use cardiac rehabilitation (CR); thus, women-focused (W-F) CR was developed. Implementation of W-F CR globally was investigated, as well as barriers and enablers to its delivery.

Methods

In this cross-sectional study, a survey was administered to CR programs via Research Electronic Data Capture (REDCap) from May to July, 2023. Potential respondents were identified via the International Council of Cardiovascular Prevention and Rehabilitation's network.

Results

A total of 223 responses were received from 52 of 111 countries (46.8% country response rate) in the world that have any CR, across all 6 World Health Organization regions. Thirty-three programs (14.8%) from 30 countries reported offering any W-F programming. Programs commonly did offer elements preferred by women and recommended, namely, the following: patient choice of session time (n = 151; 70.6%); invitations for informal care providers and/or partners to attend sessions (n = 121; 57.1%); CR staff that have expertise in women and heart diseases (n = 112; 53.3%); separate changerooms for women (n = 38; 52.8%); and discussion of CR referral with patients (n = 112; 52.1%). Main barriers to delivery of W-F exercise were physical resources (n = 33; 14.8%), space (n = 30; 13.5%), and staff time (n = 26; 11.7%) and expertise (n = 33; 10.3%). Main barriers to delivery of W-F education were human resources (n = 114; 51.1%), educational resources (n = 26; 11.7%), and expertise in the content (n = 74; 33.2%). Enablers of W-F education delivery were availability of materials, in multiple modalities, as well as educated staff and financial resources.

Conclusions

Despite the benefits, W-F CR is not commonly offered globally. Considering the barriers and enablers identified, the International Council of Cardiovascular Prevention and Rehabilitation is developing resources to expand delivery.

Sex, Gender, and Women's Heart Health: How Women's Heart Programs Address the Knowledge Gap

This article aims to bridge existing knowledge gaps that impact clinical cardiovascular care and outcomes for women in Canada. The authors discuss various aspects of women's heart health, emphasizing the efficacy of multidisciplinary care in promoting women's well-being. The article also identifies the impact of national women's heart health campaigns and the value of peer support in improving outcomes. The article addresses the particular risks that women face, such as pregnancy-related complications and hormone replacement therapy, all of which are associated with cardiovascular events, and highlights the differences in ischemic symptoms between men and women. Despite improvements in acute event outcomes, challenges persist in accessing timely ambulatory care, particularly for women. Canada has responded to these challenges by introducing Women Heart Programs, which offer tailored programs, support groups, and specialized testing. However, these programs remain few in number and are found only in urban settings. Overall, this review identifies sex and gender factors related to women's heart health, underscoring the importance of specialized programs and multidisciplinary care in improving women's cardiovascular health.

A Mobile Health Behavior Change Intervention for Women With Coronary Heart Disease: A RANDOMIZED CONTROLLED PILOT STUDY

PURPOSE

The aim of this study was to evaluate the effects of a mobile health (mHealth) intervention, HerBeat, compared with educational usual care (E-UC) for improving exercise capacity (EC) and other patient-reported outcomes at 3 mo among women with coronary heart disease.

METHODS

Women were randomized to the HerBeat group (n = 23), a behavior change mHealth intervention with a smartphone, smartwatch, and health coach or to the E-UC group (n = 24) who received a standardized cardiac rehabilitation workbook. The primary endpoint was EC measured with the 6-min walk test (6MWT). Secondary outcomes included cardiovascular disease risk factors and psychosocial well-being.

RESULTS

A total of 47 women (age 61.2 ± 9.1 yr) underwent randomization. The HerBeat group significantly improved on the 6MWT from baseline to 3 mo ( P = .016, d = .558) while the E-UC group did not ( P = .894, d =-0.030). The between-group difference of 38 m at 3 mo was not statistically significant. From baseline to 3 mo, the HerBeat group improved in anxiety ( P = .021), eating habits confidence ( P = .028), self-efficacy for managing chronic disease ( P = .001), diastolic blood pressure ( P = .03), general health perceptions ( P = .047), perceived bodily pain ( P = .02), and waist circumference ( P = .008) while the E-UC group showed no improvement on any outcomes.

CONCLUSIONS

The mHealth intervention led to improvements in EC and several secondary outcomes from baseline to 3 mo while the E-UC intervention did not. A larger study is required to detect small differences between groups. The implementation and outcomes evaluation of the HerBeat intervention was feasible and acceptable with minimal attrition.

What do spontaneous coronary artery dissection survivors want to support their recovery? a qualitative study

AIMS

Spontaneous coronary artery dissection (SCAD) is increasingly recognized as an important cause of myocardial infarction predominantly affecting women aged younger than 50 years. There is limited research addressing female and male SCAD survivors' experience of, or requirements for, support post-SCAD. This study explored what SCAD survivors wanted to support recovery.

METHODS AND RESULTS

A qualitative study using semi-structured video and telephone interviews. Data were analysed through thematic analysis using the framework approach. We interviewed 20 participants (19 females) with a mean age of 54.6 (+/-SD 8.5 years). Three overarching themes encapsulated participants' views about support requirements. (i) Education and information. Participants thought healthcare professionals involved in diagnosis and supporting recovery required greater awareness of SCAD and the psychological effect of SCAD. They wanted accessible SCAD information immediately post-event and during the educational component of cardiac rehabilitation. (ii) Physical activity. Requirements were for advice tailored to individuals' specific needs, physical capabilities, and physical activity preferences. Participants suggested that utilizing wearable technology was helpful to encourage a safe return to activity. (iii) Psychosocial support. Participants wanted formal psychosocial support immediately post-event, during cardiac rehabilitation and in the longer term.

CONCLUSION

Better healthcare professional training may improve diagnosis, and increase support and awareness of SCAD. SCAD support programmes should provide early SCAD specific education utilizing online sources, individually tailor physical activity prescription, offer wearable technology to support a return to being active, and provide short- and long-term psychosocial support. As SCAD is predominately a female condition, programmes should consider female physical activity preferences.

Predictors of gain in exercise capacity through cardiac rehabilitation: Sex and age matter

BACKGROUND

Cardiac rehabilitation (CR) is a cornerstone of secondary prevention that improves cardiovascular outcomes. However, the determinants of treatment success are poorly understood.

OBJECTIVES

We investigated the associations of health-related quality of life (HRQoL), sex, age, employment status and housing situation with improvement in exercise capacity throughout CR.

METHODS

We analyzed data from 392 CR outpatients (81% men and 19% women). Exercise capacity at baseline and upon completion of the program was measured with the 6-minute walk distance (6MWD). HRQoL at CR entry was assessed with the Short Form 36 Health Survey (SF-36).

RESULTS

A multivariable regression analysis revealed that both men and women showed significant improvement in exercise capacity (p < .001). Female sex (B = 18.118, 95% CI 0.341 - 36.035, p = .046) and younger age (B = -0.887, 95% CI -1.463 - -0.312, p = .003) emerged as predictors of greater improvement, while HRQoL, employment status, and housing situation were not associated with significant change in exercise capacity. The final model explained 25% of the variance in exercise capacity change (adjusted R2 = 0.25, p < .001).

CONCLUSIONS

Our results indicate that women and younger participants benefit from CR by improving their exercise capacity. Employment status, housing situation and HRQoL showed no effects on CR outcome.

Exercise-based cardiac rehabilitation in women with heart failure: a review of enrollment, adherence, and outcomes

Exercise-based cardiac rehabilitation (CR) is an evidence-based recommendation for patients with stable heart failure (HF). Less clear is how effective exercise-based CR is for women with HF. The aim of this review was to synthesize the evidence for the effects of exercise-based CR on mortality, hospitalizations, exercise capacity, and quality of life (QOL) among women with HF. We identified 18 studies comprising 4917 patients, of which 1714 were women. The interventions evaluated consisted of various combinations of supervised in-hospital and out-patient sessions as well as home-based programs that included aerobic (walking, treadmill, bicycle) and resistance training. The interventions ranged from 12 to 54 weeks, with a frequency of 2-7 sessions per week, lasting from 30 to 105 min per session. Because of a paucity of sex-specific analyses of the outcomes, it was not possible to draw conclusions for women. There was limited evidence for mortality benefit for men or women participating in exercise-based CR. There was more substantial evidence for reductions in hospitalizations for the participants. Generally, exercise training improved exercise capacity. The effects of exercise-based CR on QOL were mixed with most studies favoring CR at 3 months but not at 4, 5, and 12 months. Moreover, generally, the physical dimension of QOL but not the mental dimensions improved. Recommendations for future research to reduce the gap in knowledge about the effects of exercise-based CR for women are offered.

Sex differences in cardiac rehabilitation barriers among non-enrollees in the context of lower gender equality: a cross-sectional study

BACKGROUND

Despite the benefits of cardiac rehabilitation (CR), it remains under-utilized, particularly by women. This study compared CR barriers between non-enrolling men and women in Iran, which has among the lowest gender equality globally.

METHODS

In this cross-sectional study, CR barriers were assessed via phone interview in phase II non-attenders from March 2017 to February 2018 with the Persian version of the Cardiac Rehabilitation Barriers Scale (CRBS-P). T-tests were used to compare scores, with each of 18 barriers scored out of 5, between men and women.

RESULTS

357 (33.9%) of the sample of 1053 were women, and they were older, less educated and less often employed than men. Total mean CRBS scores were significantly greater in women (2.37 ± 0.37) than men (2.29 ± 0.35; effect size[ES] = 0.08, confidence interval[CI]: 0.03-0.13; p < 0.001). The top CR barriers among women were cost (3.35; ES = 0.40, CI:0.23-0.56; P < 0.001), transportation problems (3.24; ES = 0.41, CI:0.25-0.58; P < 0.001), distance (3.21; ES = 0.31, CI:0.15-0.48; P < 0.001), comorbidities (2.97; ES = 0.49, CI:0.34-0.64; P < 0.001), low energy (2.41; ES = 0.29, CI:0.18-0.41; P < 0.001), finding exercise as tiring or painful (2.22; ES = 0.11, CI:0.02-0.21; P = 0.018), and older age (2.27; ES = 0.18, CI:0.07-0.28; P = 0.001). Men rated "already exercise at home or in community" (2.69; ES = 0.23, CI:0.1-0.36; P = 0.001), time constraints (2.18; ES = 0.15, CI:0.07-0.23; P < 0.001) and work responsibilities (2.24; ES = 0.16, CI:0.07-0.25; P = 0.001) as greater CR barriers than women.

CONCLUSION

Women had greater barriers to CR participation than men. CR programs should be modified to address women's needs. Home-based CR tailored to women's exercise needs and preferences should be considered.

Factors which facilitate or impede patient engagement with pulmonary and cardiac rehabilitation: a rapid evaluation mapping review

Background

There is a considerable body of systematic review evidence considering the effectiveness of rehabilitation programmes on clinical outcomes. However, much less is known about effectively engaging and sustaining patients in rehabilitation. There is a need to understand the full range of potential intervention strategies.

Methods

We conducted a mapping review of UK review-level evidence published 2017-21. We searched MEDLINE, EMBASE and the Cumulative Index to Nursing and Allied Health (CINAHL) and conducted a narrative synthesis. Included reviews reported factors affecting commencement, continuation or completion of cardiac or pulmonary rehabilitation, or an intervention to facilitate these factors. Study selection was undertaken independently by two reviewers.

Results

In total, we identified 20 review papers that met our inclusion criteria. There was a bias towards reviews considering cardiac rehabilitation, with these numbering 16. An additional 11 unpublished interventions were also identified through internet searching of key websites. The reviews included 60 identifiable UK primary studies that considered factors which affected attendance at rehabilitation; 42 considered cardiac rehabilitation and 18 considering pulmonary rehabilitation. They reported on factors from the patients' point of view, as well as the views of professionals involved in referral or treatment. It was more common for factors to be reported as impeding attendance at rehabilitation rather than facilitating it. We grouped the factors into patient perspective (support, culture, demographics, practical, health, emotions, knowledge/beliefs and service factors) and professional perspective (knowledge: staff and patient, staffing, adequacy of service provision and referral from other services, including support and wait times). We found considerably fewer reviews (n = 3) looking at interventions to facilitate participation in rehabilitation. Although most of the factors affecting participation were reported from a patient perspective, most of the identified interventions were implemented to address barriers to access in terms of the provider perspective. The majority of access challenges identified by patients would not therefore be addressed by the identified interventions. The more recent unevaluated interventions implemented during the COVID-19 pandemic may have the potential to act on some of the patient barriers in access to services, including travel and inconvenient timing of services.

Conclusions

The factors affecting commencement, continuation or completion of cardiac or pulmonary rehabilitation consist of a web of complex and interlinked factors taking into consideration the perspectives of the patients and the service providers. The small number of published interventions we identified that aim to improve access are unlikely to address the majority of these factors, especially those identified by patients as limiting their access. Better understanding of these factors will allow future interventions to be more evidence based with clear objectives as to how to address the known barriers to improve access.

Limitations

Time limitations constrained the consideration of study quality and precluded the inclusion of additional searching methods such as citation searching and contacting key authors. This may have implications for the completeness of the evidence base identified.

Future work

High-quality effectiveness studies of promising interventions to improve attendance at rehabilitation, both overall and for key patient groups, should be the focus moving forward.

Funding

This report presents independent research funded by the National Institute for Health Research (NIHR). The views and opinions expressed by authors in this publication are those of the authors and do not necessarily reflect those of the NHS, the NIHR, NETSCC, the HSDR programme or the Department of Health.

Study registration

The study protocol is registered with PROSPERO [CRD42022309214].

Technology-based Comprehensive Cardiac Rehabilitation Therapy (TaCT) for women with cardiovascular disease in a middle-income setting: A randomized controlled trial protocol

Women are underrepresented in cardiac rehabilitation (CR) despite the benefits, and this is exacerbated in lower-resource settings where CR is insufficiently available. In this randomized controlled trial, the effectiveness of the Technology-based Comprehensive Cardiac Rehabilitation Therapy (TaCT) electronic cardiac rehabilitation (eCR) intervention on functional capacity, risk factors, quality of life, heart-health behaviors, symptoms, and morbidity will be tested among women with CVD in a middle-income country. Following a pilot study, a single-center, single-blinded, 2 parallel-arm (1:1 SNOSE) superiority trial comparing an eCR intervention (TaCT) to usual care, with assessments pre-intervention and at 3 and 6 months will be undertaken. One hundred adult women will be recruited. Permuted block (size 10) randomization will be applied. The 6-month intervention comprises an app, website, SMS texts with generic heart-health management advice, and bi-weekly 1:1 telephone calls with a nurse trainee. Individualized exercise prescriptions will be developed based on an Incremental Shuttle Walk Test (primary outcome) and dietary plans based on 24 h dietary recall. A yoga/relaxation video will be provided via WhatsApp, along with tobacco cessation support and a moderated group chat. At 3 months, intervention engagement and acceptability will be assessed. Analyses will be conducted based on intent-to-treat. If results of this novel trial of women-focused eCR in a middle-income country demonstrate clinically-significant increases in functional capacity, this could represent an important development for the field considering this would be an important outcome for women and would translate to lower mortality.

The impact of Virtual Reality on Anxiety and Functional Capacity in Cardiac Rehabilitation: A Systematic Review and Meta-analysis

BACKGROUND

The overall utilization of cardiac rehabilitation (CR) is low despite its proven benefits in secondary prevention. Virtual reality (VR), a novel method of rehabilitation, may increase overall compliance. The purpose of this systematic review and meta-analysis is to synthesize evidence and report whether the addition of VR leads to an improvement in anxiety and functional capacity (FC) compared to standard CR.

METHODS

A comprehensive search strategy was used to search the online databases for the randomized controlled trials (RCTs) on VR-CR. Statistical analysis was performed using Stata SE version 17.0 (College Station, TX) and RevMan5.

RESULTS

A total of 747 study participants were part of 7 studies included in the meta-analysis. Three studies were part of the narrative synthesis. Anxiety showed significant improvement in VR-CR compared to standard CR (SMD -0.32, 95% CI -0.61, -0.03). There was no significant improvement in FC between VR-CR and the standard CR (SMD 0.077, 95% CI -1.24, 1.32).

CONCLUSION

VR-CR significantly improved CR-related anxiety compared to standard CR. However, no significant improvement in FC was found in VR-CR compared to the standard CR. Further studies are needed to assess the impact of non-immersive and immersive VR on FC.

Women-Focused Cardiovascular Rehabilitation: An International Council of Cardiovascular Prevention and Rehabilitation Clinical Practice Guideline

Women-focused cardiovascular rehabilitation (CR; phase II) aims to better engage women, and might result in better quality of life than traditional programs. This first clinical practice guideline by the International Council of Cardiovascular Prevention and Rehabilitation (ICCPR) provides guidance on how to deliver women-focused programming. The writing panel comprised experts with diverse geographic representation, including multidisciplinary health care providers, a policy-maker, and patient partners. The guideline was developed in accordance with Appraisal of Guidelines for Research and Evaluation (AGREE) II and the Reporting Items for practice Guidelines in HealTh care (RIGHT). Initial recommendations were on the basis of a meta-analysis. These were circulated to a Delphi panel (comprised of corresponding authors from review articles and of programs delivering women-focused CR identified through ICCPR's audit; N = 76), who were asked to rate each on a 7-point Likert scale in terms of impact and implementability (higher scores positive). A Web call was convened to achieve consensus; 15 panelists confirmed strength of revised recommendations (Grading of Recommendations Assessment, Development, and Evaluation [GRADE]). The draft underwent external review from CR societies internationally and was posted for public comment. The 14 drafted recommendations related to referral (systematic, encouragement), setting (model choice, privacy, staffing), and delivery (exercise mode, psychosocial, education, self-management empowerment). Nineteen (25.0%) survey responses were received. For all but 1 recommendation, ≥ 75% voted to include; implementability ratings were < 5/7 for 4 recommendations, but only 1 for effect. Ultimately 1 recommendation was excluded, 1 separated into 2 and all revised (2 substantively); 1 recommendation was added. Overall, certainty of evidence for the final recommendations was low to moderate, and strength mostly strong. These recommendations and associated tools can support all programs to feasibly offer some women-focused programming.

Biology, Bias, or Both? The Contribution of Sex and Gender to the Disparity in Cardiovascular Outcomes Between Women and Men

Purpose of Review

Cardiovascular disease (CVD) is the leading cause of mortality and morbidity worldwide for both men and women. However, CVD is understudied, underdiagnosed, and undertreated in women. This bias has resulted in women being disproportionately affected by CVD when compared to men. The aim of this narrative review is to explore the contribution of sex and gender on CVD outcomes in men and women and offer recommendations for researchers and clinicians.

Recent Findings

Evidence demonstrates that there are sex differences (e.g., menopause and pregnancy complications) and gender differences (e.g., socialization of gender) that contribute to the inequality in risk, presentation, and treatment of CVD in women.

Summary

To start addressing the CVD issues that disproportionately impact women, it is essential that these sex and gender differences are addressed through educating health care professionals on gender bias; offering patient-centered care and programs tailored to women’s needs; and conducting inclusive health research.

Update on Management of Cardiovascular Diseases in Women

Cardiovascular diseases (CVD) have a lower prevalence in women than men; although, a higher mortality rate and a poorer prognosis are more common in women. However, there is a misperception of CVD female risk since women have commonly been considered more protected so that the real threat is vastly underestimated. Consequently, female patients are more likely to be treated less aggressively, and a lower rate of diagnostic and interventional procedures is performed in women than in men. In addition, there are substantial sex differences in CVD, so different strategies are needed. This review aims to evaluate the main gender-specific approaches in CVD.

Women's outcomes following mixed-sex, women-only, and home-based cardiac rehabilitation participation and comparison by sex

BACKGROUND

Despite women's greater need for cardiac rehabilitation (CR), they are less likely to utilize it. Innovative CR models have been developed to better meet women's needs, yet there is little controlled, comparative data assessing the effects of these models for women. This study compared outcomes in women electing to participate in mixed-sex, women-only, or home-based CR, and a matched sample of men.

METHODS

In this retrospective study, electronic records of CR participants in Toronto who were offered the choice of program model between January 2017 and July 2019 were analyzed; clinical outcomes comprised cardiorespiratory fitness, risk factors and psychosocial well-being. These were assessed at intake and post-6-month program and analyzed using general linear mixed models.

RESULTS

There were 1181 patients (727 women [74.7% mixed, 22.0% women-only, 3.3% home-based]; 454 age and diagnosis-matched men) who initiated CR; Cardiorespiratory fitness among women was higher at initiation of mixed-sex than women-only (METs 5.1 ± 1.5 vs 4.6 ± 1.3; P = .007), but no other outcome differences were observed. 428 (58.9%) women completed the programs, with few women retained in the home-based model limiting comparisons. There were significant improvements in high-density lipoprotein cholesterol (P = .001) and quality of life (P = .001), and lower depressive symptoms (P = .030) as well as waist circumference (P = .001) with mixed-sex only. VO2peak was significantly higher at discharge in mixed-sex than women-only (estimate = 1.67, standard error = 0.63, 95% confidence interval = 0.43-2.91).

CONCLUSION

Participation in non-gender-tailored women-only CR was not advantageous as expected. More research is needed, particularly including women participating in home-based programs.

Clinical outcomes and cardiac rehabilitation in underrepresented groups after percutaneous coronary intervention: an observational study

AIMS

Underrepresentation of migrants, women, and older adults in cardiovascular disease (CVD) trials may contribute to disparate care and survival. Among patients who underwent percutaneous coronary intervention (PCI), we aimed to investigate the associations of (i) underrepresented groups with major adverse cardiac events (MACE), CVD mortality, and non-CVD mortality, (ii) underrepresented groups with cardiac rehabilitation (CR) uptake, and (iii) CR uptake with outcomes.

METHODS AND RESULTS

We included 15 211 consecutive patients from the CARDIOBASE Bern PCI registry (2009-18). In multi-state models comparing transition probabilities of events, sex was not associated with increased risk of any event. For each year increase in age, the increased risk of non-CVD and CVD mortality was 8% [95% confidence interval (CI) 6-9%]. Being migrant was associated with a lower risk of non-CVD mortality [hazard ratio (HR) (95% CI) 0.49 (0.27-0.90)] but not with CVD mortality. In logistic regression analysis, CR uptake was lower among women [odds ratio (95% CI) = 0.72 (0.57-0.86)] and older adults [0.32 (0.27-0.38)], but not among migrants. In cox regression, CR was independently associated with lower all-cause [HR (95% CI) = 0.12 (0.03-0.37)] and CVD mortality [0.1 (0.02-0.7)], but not with MACE [1.08 (0.8-1.4)].

CONCLUSION

Among underrepresented groups undergoing PCI, age, but not migration status nor sex, contributed to disparities in mortality. Migrant status did not result in lower attendance of CR. Considering the protective associations of CR on CVD mortality independent of age, sex, and migration status, the lower uptake in women and older adults is noteworthy.