Stroke Patients' Outpatient Rehabilitation Therapy (SPORT) (SPORT)

February 24, 2020 updated by: Dr. David Matchar, National University, Singapore

A Randomized Controlled Trial to Improve the Uptake of and Adherence to Outpatient Rehabilitation Services Among Stroke Patients

Background: Stroke is the leading cause of long-term disability in Singapore, and studies have found that intensive specialized stroke rehabilitation can improve post-stroke functional outcomes for a substantial proportion of stroke patients. However, despite the benefits associated with adherence to prescribed rehabilitation, the uptake rate of outpatient rehabilitation services (ORS) in Singapore is only 33%.

According to local longitudinal studies, the financial burden of out-of-pocket service costs and the inconvenient transportation from home to rehabilitation centres are important barriers to access to ORS.

Objective: To examine the effect and cost-effectiveness of providing incentives for ORS to improve the uptake of ORS compared to usual care (control) with no incentives

Hypothesis: An evidence-based program to test the effectiveness of providing incentives to alleviate the financial burden as well as inconvenience of transportation for ORS will improve the uptake of and adherence to ORS among stroke patients.

Methodology: This study is an individual-based randomized controlled trial (RCT) of 300 stroke patients recruited from Singapore General Hospital (SGH) and Changi General Hospital (CGH). They will be randomized to one of three study arms (education only, free transportation, and free services and transportation) and interviewed at the time of recruitment and four months after the enrolment in the study. Participants' health conditions, socioeconomic situation, health & medical services utilization, stroke-related disability measures, quality of life, and reasons for uptake/rejection/withdraw from the services will be collected during both baseline and the 4th month assessments.

Significance: As the first study in Singapore to test innovative ways to increase the stroke ORS uptake rates, it will provide evidence for future policy changes in financing outpatient rehabilitation and other long-term care services in Singapore. It will also provide important empirical parameter estimates for Systems Dynamics modelling of the demand and supply of ORS in Singapore.

Study Overview

Detailed Description

Background Stroke is the leading cause of long-term disability in Singapore. Stroke accounts for 9.1% of years of life lost (YLL) and 6.1% of disability-adjusted life years (DALYs). With a rapidly aging population, the burden of stroke is anticipated to grow correspondingly in the years to come. Stroke survivors with moderate or severe functional disabilities require long-term medical and social care, imposing financial and psychological burdens on the patients and their family members. Research indicates that intensive specialized stroke rehabilitation can improve post-stroke functional outcomes for a substantial portion of stroke patients. Extant studies also indicate that rehabilitation is cost-effective in both inpatient and outpatient settings, and can potentially lead to reductions in both sub-acute and long-term post-stroke healthcare costs. In addition, a longitudinal study on post-stroke patients in Singapore found that receiving outpatient rehabilitation service at day rehabilitation centers resulted in earlier functional recovery. However, despite the benefits associated with adherence to prescribed rehabilitation sessions, the uptake rate of and adherence to outpatient rehabilitation service in Singapore is low. Only 33% of stroke survivors who were recommended for post-discharge community-based rehabilitation actually took up the service. The low uptake rate also implies substantial potential avoidable disability among stroke patients in Singapore.

Significance According to a longitudinal survey on patients who were discharged from community hospital and recommended for post-discharge outpatient rehabilitation in Singapore, financial burden of rehabilitation services and the inconveniences of transportation are associated with the low attendance rates to outpatient rehabilitation.

Behavioral economic theory and empirical studies also suggest that the low rate of uptake and adherence, at least in part, is attributable to stroke patients' perceptions or uncertainty about the health benefits of rehabilitation. Stroke patients may make a decision to utilize ORS or not, based on incomplete information about the service attributes (e.g. service quality, social connectedness, and perceived benefits). Over time, patients and caregivers may update their perceived service attributes through information and education on stroke management or actual experiences. Hence, providing incentives to take up ORS and educational materials on post-stroke management will elevate the current uptake rate of ORS and long-term adherence.

The proposed study will be the first attempt in Singapore to test innovative ways of encouraging uptake of stroke ORS. It will systematically test promising economic strategies that might be effective and cost-effective in increasing the uptake of and adherence to the prescribed ORS. Given the high bed occupancy rate in public acute hospitals in Singapore, outpatient center-based rehabilitation service could be a more viable option than inpatient rehabilitation and more cost-effective in Singapore. It will provide evidence for future policy change in financing outpatient rehabilitation service and other long-term care services in Singapore and other countries experiencing similar problems.

Specific Aims & Hypothesis Stroke is the leading cause of long-term disability in Singapore, and the burden of stroke is posing challenges to the healthcare system and society. Previous international and regional research studies suggest that a substantial proportion of stroke patients can benefit from post-stroke rehabilitation services and achieve improved functional outcomes. However, despite government subsidies and Medisave coverage for outpatient rehabilitation, the uptake rate of outpatient rehabilitation service (ORS) among stroke patients is low.

The investigators propose a randomized controlled trial (RCT) to test different interventions aimed at improving the uptake of and adherence to outpatient rehabilitation services: a rehabilitation educational program (Group 1, Education), free transportation only (Group 2, Transportation Incentives) and free transportation and rehabilitation sessions (Group 3, Transport & Sessions Incentives) for the first 3 months from the date of discharge.

The study aims to:

  1. Examine whether incentives for outpatient rehabilitation services (Group 2 and Group 3) are more effective at improving the uptake of rehabilitation services compared with education program only (Group 1);
  2. Determine whether stroke patients in Group 3 Transport & Sessions Incentives are more likely to take up ORS than those in the Group 2 Transport Incentives only;
  3. Assess the effectiveness of interventions (Group 2 and Group 3) on patient health outcomes; and
  4. Evaluate the cost-effectiveness of the interventions (Group 2 and Group 3) at the 4th month.

At each recruitment site, the Research Coordinator will assess the patient's eligibility before approaching them for recruitment. The patient will be given an Abbreviated Mental Test (AMT) for cognitive assessment. If the patient is cognitively unfit, then his/her caregiver/proxy will be required to sign the informed consent form on behalf of the patient. The enrolment period will last for approximately 14-16 months or when the recruitment target of 300 participants has been achieved.

Baseline Assessment: After signing the informed consent form, the Research Coordinator will proceed with the baseline assessment which consists of participant's socioeconomic characteristics, health status, health and medical services utilization, financial status, stroke-related disability measures, quality of life, and self-efficacy.

The Research Coordinator will educate all participants on their conditions and how to recover after stroke. A pamphlet with information on post-stroke rehabilitation will also be distributed to all participants.

Patient-level Intervention: The intervention phase is for a period of three months post-discharge. The Study Team at Duke-NUS will be coordinating all the incentivised services for the participants

Measures and Analysis The primary study outcome is uptake of outpatient rehabilitation services. Uptake is defined as a patient attending at least one rehabilitation session after discharge. A key secondary outcome will be adherence, defined as the proportion of times the participant attended prescribed outpatient rehabilitation sessions during the study period. Additional secondary outcomes of the study include measures of participants' stroke-related functional status (Modified Rankin Scale, mRS, and modified Barthel Index for Activities of Daily Living (ADL) limitation), quality of life (EQ-5D), resilience (CD-RISC 10), and participants' inpatient and other medical services utilization. The investigators will also obtain participants' baseline socio-demographic data and health status from electronic medical records and self-reported questionnaire as control variables. In addition, the program costs of all incentives provided to those in the interventions arms will be tracked systematically.

The investigators will conduct bivariate analyses and employ generalized linear model to examine the differences among three study arms in the outcomes of interest, as identified above. For all the health outcome variables such as, functional status, and will employ a difference-in-differences (DID) design to assess the impact of incentives. This method controls for secular trends in outcomes by comparing the longitudinal change in the controls from the concurrent change in cases between the baseline and follow-up period. Specifically, the covariates for the interaction term in the regression model (i.e. the difference-in-differences estimates) represent the difference in the changes over time. In addition, the incremental cost-effectiveness ratios (ICER) for interventions will be calculated by dividing the difference in costs of control arm and that of intervention arms by the incremental effectiveness of both intervention arms compared with control arm.

Power calculation Assuming the uptake rate for control arm is 33% and the detectable difference for the intervention arm is 10% (that is, the intervention arm that is most different from control has an uptake rate of 43%), the desired sample size is a total of 300 subjects (100 per arm) to achieve 80% power and to accommodate 10% attrition.

Study Type

Interventional

Enrollment (Actual)

266

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Singapore, Singapore
        • Changi General Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

55 years to 100 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosed with stroke as defined by the World Health Organization's criteria;
  • Discharged to home;
  • Recommended by physicians to continue outpatient rehabilitation afte discharge;
  • Singapore citizen or Permanent Resident; and
  • Provision of informed consent.

Exclusion Criteria:

  • Stroke patients who are suffering from severe dysphasia without caregiver or proxy;
  • Cognitively impaired patients without caregiver or proxy; and
  • Age < 20 years.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: HEALTH_SERVICES_RESEARCH
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
NO_INTERVENTION: Group 1
Education or Control group.
EXPERIMENTAL: Group 2
Transportation incentives
Free transportation only for the first 3 months post-discharge.
EXPERIMENTAL: Group 3
Transportation and rehabilitation services incentives
Free transportation and rehabilitation services 3 months post-discharge.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Uptake rate of incentivised rehabilitation services
Time Frame: 3 months post-discharge
Uptake rate of incentivised services will be measured by number of participants who attend at least one rehabilitation session.
3 months post-discharge

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adherence rate of incentivised rehabilitation services
Time Frame: 3 months post-discharge
Adherence rate will be measured by the proportion of recommended sessions participants attended versus number of sessions recommended.
3 months post-discharge
Barriers for outpatient rehabilitation services (ORS) utilization
Time Frame: 3 months post discharge
ORS take-up rate between Group 2 and Group 3 will be computed to assess if transportation or out of pocket costs are barriers for ORS.
3 months post discharge
Effectiveness of interventions on participants' health outcomes
Time Frame: Change from Baseline MBI at 4 months
The investigators will be using Modified Barthel Index to measure health outcomes, comparing the changes from baseline to assessment at 4th month.
Change from Baseline MBI at 4 months
Cost effectiveness of incentivised ORS
Time Frame: 3 months post-discharge
The investigators will be using the cost data collected from rehabilitation centres and actual costs for the incentivised ORS to assess cost effectiveness. Incremental cost-effectiveness ratio (ICER) will be computed using the extra cost with incentives ($) / Improved uptake rate of rehabilitation with incentives (% attending at least one session).
3 months post-discharge

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Sherry Young, MD, Changi General Hospital
  • Principal Investigator: Deidre A De Silva, MD, Singapore General Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

May 26, 2017

Primary Completion (ACTUAL)

November 30, 2019

Study Completion (ACTUAL)

November 30, 2019

Study Registration Dates

First Submitted

May 16, 2017

First Submitted That Met QC Criteria

May 23, 2017

First Posted (ACTUAL)

May 24, 2017

Study Record Updates

Last Update Posted (ACTUAL)

February 26, 2020

Last Update Submitted That Met QC Criteria

February 24, 2020

Last Verified

August 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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