Publications by authors named "Karice K Hyun"

Introduction: Australian breast cancer survivors are at increased risk of cardiovascular disease and mortality, partly due to behavioural risk factors, including unhealthy diet and physical inactivity. Guidelines recommend health promotion delivered by general practitioners (GPs), but resources (ie, time and funding) are limited. Text message interventions sent from general practice to survivors may offer a low-resource solution but have not been evaluated.

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Background: COVID-19 lockdowns caused widespread closures of supportive care services for breast cancer survivors in Australia. In a randomized controlled trial, our team's lifestyle-focused, evidence-based SMS text message support program (EMPOWER-SMS COVID-19) was found to be acceptable and useful for breast cancer survivors, and it was ready for rapid widespread delivery.

Objective: This study aims to evaluate the reach (uptake) of an adapted 3-month lifestyle-focused SMS text message program (EMPOWER-SMS COVID-19) and barriers and enablers to implementation using the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework.

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Article Synopsis
  • The COVID-19 pandemic led to the closure of in-person pulmonary rehabilitation programs in Australia, prompting the evaluation of a six-month text message support program aimed at helping individuals manage their health remotely.
  • The study used the RE-AIM framework to assess the program’s reach, effectiveness, adoption, implementation, and maintenance, with findings indicating a positive reception among participants regarding the clarity and helpfulness of the messages.
  • Results showed a 36.4% enrollment rate with high satisfaction levels (e.g., 98.5% found messages easy to understand), a 92.2% retention rate, and cost-effectiveness, indicating the program's potential as a viable alternative to traditional rehabilitation methods.
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Article Synopsis
  • Ongoing electronic health interventions can provide valuable remote support to breast cancer patients, potentially improving their quality of life, self-efficacy, and mental or physical health outcomes during and after treatment.
  • A systematic review analyzed 32 studies involving nearly 4,800 patients, focusing on health self-management tools like videos and forums.
  • Results indicated eHealth interventions significantly improved quality of life, self-efficacy, and reduced distress and fatigue, with high levels of patient satisfaction; however, engagement with these tools decreased over time.
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Purpose: The aim of this study is to evaluate the efficacy, feasibility and acceptability of a co-designed lifestyle-focused text message intervention (EMPOWER-SMS) for breast cancer survivors' self-efficacy, quality of life (QOL), mental (anxiety, depression, stress) and physical (endocrine therapy medication adherence, physical activity, BMI) health.

Methods: Single-blind randomised controlled trial (1:1) comparing EMPOWER-SMS to usual care at 6-months (intention-to-treat).

Setting: public Breast Cancer Institute (Sydney, Australia).

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Purpose: This study aims to evaluate the reach, usefulness, acceptability, and factors influencing engagement with a lifestyle-focused text message intervention to support women's mental and physical health after breast cancer treatment.

Methods: This study uses a mixed-methods process evaluation nested in the EMPOWER-SMS randomised controlled trial (n = 160; intervention n = 80, wait-list control n = 80). Data sources included screening logs, text message delivery software analytics, intervention feedback survey, and focus groups (n = 16), which were summarised thematically based on the framework approach.

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Background: Breast cancer is the most common cancer among women globally. Recovery from breast cancer treatment can be mentally and physically challenging. SMS text message programs offer a novel way to provide health information and support, but few programs are co-designed with consumer representatives.

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Objective: To determine whether sex differences exist in the assessment of cardiovascular disease (CVD) risk scores/risk factors in primary health care.

Design/methods: PubMed and EMBASE were systematically searched on 31 January 2017. Clinical trials and observational studies were included if they reported on the assessment of CVD risk score, blood pressure (BP), cholesterol or smoking status in primary health care, stratified by sex.

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Objective: To ascertain the use of secondary prevention medications and cardiac rehabilitation after an acute coronary syndrome (ACS) and the impact on 2-year outcomes.

Methods: CONCORDANCE (Cooperative National Registry of Acute Coronary care, Guideline Adherence and Clinical Events) is a prospective, observational registry of 41 Australian hospitals. A representative sample of 6859 patients with an ACS and 6 months' follow-up on 31 May 2016 were included.

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Background: There are varying data on whether socioeconomic status (SES) affects the treatment in patients with acute coronary syndrome (ACS). Our aim was to obtain a reliable estimate of the effect of SES on discharge prescription of medications following an ACS through systematic review and meta-analysis.

Methods: Medline, EMBASE and Global Health were searched systematically on 6th April 2016.

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Objective Effective translation of evidence to practice may depend on systems of care characteristics within the health service. The present study evaluated associations between hospital expertise and infrastructure capacity and acute coronary syndrome (ACS) care as part of the SNAPSHOT ACS registry. Methods A survey collected hospital systems and process data and our analysis developed a score to assess hospital infrastructure and expertise capacity.

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Objectives: To quantify contemporary differences in cardiovascular disease (CVD) risk factor assessment and management between women and men in Australian primary healthcare services.

Methods: Records of routinely attending patients were sampled from 60 Australian primary healthcare services in 2012 for the Treatment of Cardiovascular Risk using Electronic Decision Support study. Multivariable logistic regression models were used to compare the rate of CVD risk factor assessment and recommended medication prescriptions, by gender.

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Background: Studies of chronic diseases are associated with a financial burden on households. We aimed to determine if survivors of acute coronary syndrome (ACS) experience household economic burden and to quantify any potential burden by examining level of economic hardship and factors associated with hardship.

Methods: Australian patients admitted to hospital with ACS during 2-week period in May 2012, enrolled in SNAPSHOT ACS audit and who were alive at 18 months after index admission were followed-up via telephone/paper survey.

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Article Synopsis
  • The study investigates the differences in acute coronary syndrome (ACS) care between patients with limited English proficiency (LEP) and those with English proficiency (EP) in Australia and New Zealand.
  • A total of 4,387 patients were analyzed, revealing that LEP patients were generally older and had higher rates of certain health issues, but there were no significant differences in treatment outcomes or care quality between the two groups once hospitalized.
  • The findings suggest that LEP patients do not face disparities in hospital care or outcomes for ACS in these countries, indicating equity in the treatment provided.
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Background: To date there has been limited published data presenting the characteristics and timeliness of the management in an Emergency Department (ED) for culturally and linguistically diverse (CALD) patients presenting with chest pain. This study aimed to describe the presenting characteristics and processing times for CALD patients with chest pain compared to the Australian-born population, and current guidelines.

Methods: This study was a cross sectional analysis of a cohort of patients who presented with chest pain to the metropolitan hospital between 1 July 2012 and 30 June 2014.

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Background: Acute coronary syndrome (ACS) guidelines recommend that patients with chronic kidney disease (CKD) be offered the same therapies as other high-risk ACS patients with normal renal function. Our objective was to describe the gaps in evidence-based care offered to patients with ACS and concomitant CKD.

Methods: Patients presenting to 41 Australian hospitals with suspected ACS were stratified by presence of CKD (glomerular filtration rate <60 mL/min).

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Objective: The aim of the present study was to explore the association of health insurance status on the provision of guideline-advocated acute coronary syndrome (ACS) care in Australia.

Methods: Consecutive hospitalisations of suspected ACS from 14 to 27 May 2012 enrolled in the Snapshot study of Australian and New Zealand patients were evaluated. Descriptive and logistic regression analysis was performed to evaluate the association of patient risk and insurance status with the receipt of care.

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Background: The risk of stroke is high in men among both Asian and non-Asian populations, despite differences in risk factor profiles; whether risk factors act similarly in these populations is unknown.

Aim: To study the associations between five major risk factors and stroke risk, comparing Asian with non-Asian men.

Methods: We obtained data from the Asia Pacific Cohort Studies Collaboration, a pooled analysis of individual participant data from 44 studies involving 386 411 men with 9·4 years follow-up.

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Objectives: To characterise management of suspected acute coronary syndrome (ACS) in Australia and New Zealand, and to assess the application of recommended therapies according to published guidelines.

Design, Setting And Patients: All patients hospitalised with suspected or confirmed ACS between 14 and 27 May 2012 were enrolled from participating sites in Australia and New Zealand, which were identified through public records and health networks. Descriptive and logistic regression analysis was performed.

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