Dominique A. Cadilhac

Global stroke statistics

In many countries, stroke is a lower priority than other diseases despite its public health impact. One issue is a lack of readily accessible comparative data to help make the case for the development of national stroke strategies. To assist in this process, we need to have a common repository of the latest published information on the impact of stroke worldwide. We aim to provide a repository of the most current incidence and mortality data on stroke available by country and illustrate the gaps in these data. We plan to update this repository annually and expand the scope to address other aspects of the burden of stroke. Data were compiled using two approaches: (1) an extensive literature review with a major focus on published systematic reviews on stroke incidence (between 1980 and May 14, 2013); and (2) direct acquisition and collation of data from the World Health Organization to present the most current estimates of stroke mortality for each country recognized by the World Health Organization. For mortality, ICD8, ICD9, and ICD10 mortality codes were extracted. Using population denominators crude stroke mortality was calculated, as well as adjusting for the World Health Organization world population. We used only the most recent year reported to the World Health Organization. Incidence rates for stroke were available for 52 countries, with some countries having incidence studies undertaken in more than one region. When adjusted to the World Health Organization world standard population, incidence rates for stroke ranged from 41 per 100 000 population per year in Nigeria (1971–74) to 316/ 100 000/year in urban Dar-es-Salaam (Tanzania). Some regions had three to fivefold greater incidence than other countries. Of the 123 countries reporting mortality data, crude mortality was greatest in Kazhakstan (in 2003). In many regions data were very old or nonexistent. Such country-level data are important for citizens, clinicians, and policy makers so that local and global strategies to reduce the overall burden of stroke can be implemented. Through this first annual review of country-specific stroke epidemiology, we hope to promote discussion and provide insights into the worldwide burden of stroke.

Multicenter comparison of processes of care between Stroke Units and conventional care wards in Australia

Background and Purpose— Approximately 23% of Australian hospitals provide Stroke Units (SUs). Evidence suggests that clinical outcomes are better in SUs than with conventional care. Reasons may include greater adherence to processes of care (PoC). The primary hypothesis was that adherence to selected PoC is greater in SUs than in other acute care models. Methods— Prospective, multicenter, single-blinded design. Models of care investigated: SUs, mobile services, and conventional care. Selected PoC were related to care models and participant outcomes. Data were collected at acute hospitalization (median 9 days) and at medians of 8 and 28 weeks after stroke. Results— 1701 patients were screened from 8 hospitals, 823 were eligible, and 468 participated. Response rate was 96% at final follow-up. Mean age was 73 years (SD 14). Overall PoC adherence rates for individual care models were SU 75%, mobile service 65%, and conventional care 52% (P <0.001). The adjusted odds of participants being alive at discharge if adhering to all or all but 1 PoC was significant (aOR 3.63; 95% CI: 1.04 to 12.66; P =0.043). Important trends at 28 weeks were found for being at home (aOR 3.09; 95% CI: 0.96 to 9.87; P =0.058) and independent (aOR 2.61; 95% CI: 0.96 to 7.10; P =0.061), with complete PoC adherence. Conclusion— Adherence to key PoC was higher in SUs than in other models. For all patients, adherence to PoC was associated with improved mortality at discharge and trends found with independence at home, providing support for the need to increase access to stroke units.

A Phase II Multicentered, Single-Blind, Randomized, Controlled Trial of the Stroke Self-Management Program

Background and Purpose— The benefits of chronic disease self-management programs for stroke survivors are uncertain because individuals with severe impairments have been excluded from previous research. We undertook a phase II randomized controlled trial to determine whether a self-management program designed for survivors (SSMP; 8 weeks) was safe and feasible compared to standard care (control) or a generic self-management program (generic; 6 weeks). Methods— Stroke survivors were recruited from 7 South Australian hospitals via a letter or indirectly (eg, newspapers). Eligible participants were randomized at a 1:1:1 ratio of 50 per group. Primary outcomes were recruitment, participation, and participant safety. Secondary outcomes were positive and active engagement in life using the Health Education Impact Questionnaire and characteristics of quality of life and mood at 6 months from program completion. Results— Of 315 people screened, 149 were eligible and 143 were randomized (48 SSMP, 47 generic, 48 control); mean age was 69 years (SD, 11) and 59% were female. Demographic features were similar between groups and 41% had severe cognitive impairment; 57% accessed the interventions, with 52% SSMP and 38% generic completing >50% of sessions (P=0.18). Thirty-two participants reported adverse events (7 control, 12 generic, 13 SSMP; P=0.3; 34% severe); however, none was attributable to the interventions. Potential benefits for improved mood were found. Conclusions— SSMP was safe and feasible. Benefits of the stroke-specific program over the generic program included greater participation and completion rates. An efficacy trial is warranted given the forecast growth in the stroke population and improved survival trends.

Adherence to clinical guidelines improves patient outcomes in Australian audit of stroke rehabilitation practice

OBJECTIVE To study the correlation between adherence to recommended management and good recovery outcomes in an Australian cohort of inpatients receiving rehabilitation. DESIGN Processes of care were audited and included those recommended in the Australian Clinical Guidelines for Stroke Rehabilitation and Recovery. SETTING National audit data from 68 rehabilitation units were used, with each hospital contributing up to 40 consecutive cases. PARTICIPANTS Not applicable. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Discharged home or an increase of greater than or equal to 22 in FIM scores between admission and discharge. Multivariable logistic regression models controlling for patient clustering were used to assess the associations between adherence to recommended management and recovery outcomes (dependent variables). RESULTS Hospitals contributed 2119 patients (median age 75y, 53% men). We found that rehabilitation units providing evidence-based management (eg, treatment for sensorimotor impairment 38%, hypertonicity 56%, mobility 94%, and home assessments 71%) were more likely to provide better recovery outcomes for people with stroke. A discharge FIM score of 100 was clinically relevant and was strongly correlated with whether or not a patient was discharged home. We found very good correlation between admission and discharge FIM scores in stroke rehabilitation. CONCLUSIONS This is one of the first study comparing adherence to recommended management in Australian rehabilitation units and stroke recovery outcomes based on national audit data. Novel findings include the significance of an FIM score between 80 and 100 and the clinical significance of various management processes.

Improvements in the quality of care and health outcomes with new stroke care units following implementation of a clinician-led, health system redesign programme in New South Wales, Australia.

Background and objectives: Provision of evidence-based hospital stroke care is limited worldwide. In Australia, about a fifth of public hospitals provide stroke care units (SCUs). In 2001, the New South Wales (NSW) state government funded a clinician-led, health system redesign programme that included inpatient stroke services. Our objective was to determine the effects of this initiative for improving: (i) access to SCUs and care quality and (ii) health outcomes. Design, setting and participants: Preintervention–postintervention design (12 months prior and a minimum 6–12 months following SCU implementation). Retrospective, public hospital audit of 50 consecutive medical records per time period of stroke admissions (using International Classification of Diseases (ICD)-10 codes). Combined analyses for 15 hospitals presented. Outcomes: Process of care indicators and patient independence (proportional odds modelling using modified Rankin scale). Results: Pre-programme cases (n = 703) (mean (SD) age 74 (14) years; female: 51%) and post-programme cases (n = 884) (mean age 74 (14) years; female: 49%) were comparable. Significant post-programme improvements for most process indicators were found, such as more brain imaging within 24 hours. Post-programme, access to SCUs increased 22-fold (95% CI 16.8 to 28.3). Improvement in inpatient independence at post-programme discharge was significant compared with pre-programme outcomes (proportional odds ratio 0.73, 95% CI 0.57 to 0.94; p = 0.013) when adjusted for patient clustering and case mix. Conclusions: This distinctive SCU initiative was shown as effective for improving clinical practice and significantly reducing disability following stroke.

Protocol and pilot data for establishing the Australian Stroke Clinical Registry

Background Disease registries assist with clinical practice improvement. The Australian Stroke Clinical Registry aims to provide national, prospective, systematic data on processes and outcomes for stroke. We describe the methods of establishment and initial experience of operation. Methods Australian Stroke Clinical Registry conforms to new national operating principles and technical standards for clinical quality registers. Features include: online data capture from acute public and private hospital sites; opt-out consent; expert consensus agreed core minimum dataset with standard definitions; outcomes assessed at 3 months post-stroke; formal governance oversight; and formative evaluations for improvements. Results Qualitative feedback from sites indicates that the web-tool is simple to use and the user manuals, data dictionary, and training are appropriate. However, sites desire automated data-entry methods for routine demography variables and the opt-out consent protocol has sometimes been problematic. Data from 204 patients (median age 71 years, 54% males, 60% Australian) were collected from four pilot hospitals from June to October 2009 (mean, 50 cases per month) including ischaemic stroke (in 72%), intracerebral haemorrhage (16%), transient ischaemic attack (9%), and undetermined (3%), with only one case opting out. Conclusion Australian Stroke Clinical Registry has been well established, but further refinements and broad roll-out are required before realising its potential of improving patient care through clinician feedback and allowance of local, national, and international comparative data.

Absolute risk representation in cardiovascular disease prevention: comprehension and preferences of health care consumers and general practitioners involved in a focus group study.

BackgroundCommunicating risk is part of primary prevention of coronary heart disease and stroke, collectively referred to as cardiovascular disease (CVD). In Australia, health organisations have promoted an absolute risk approach, thereby raising the question of suitable standardised formats for risk communication.MethodsSixteen formats of risk representation were prepared including statements, icons, graphical formats, alone or in combination, and with variable use of colours. All presented the same risk, i.e., the absolute risk for a 55 year old woman, 16% risk of CVD in five years. Preferences for a five or ten-year timeframe were explored. Australian GPs and consumers were recruited for participation in focus groups, with the data analysed thematically and preferred formats tallied.ResultsThree focus groups with health consumers and three with GPs were held, involving 19 consumers and 18 GPs.Consumers and GPs had similar views on which formats were more easily comprehended and which conveyed 16% risk as a high risk. A simple summation of preferences resulted in three graphical formats (thermometers, vertical bar chart) and one statement format as the top choices. The use of colour to distinguish risk (red, yellow, green) and comparative information (age, sex, smoking status) were important ingredients. Consumers found formats which combined information helpful, such as colour, effect of changing behaviour on risk, or comparison with a healthy older person. GPs preferred formats that helped them relate the information about risk of CVD to their patients, and could be used to motivate patients to change behaviour.Several formats were reported as confusing, such as a percentage risk with no contextual information, line graphs, and icons, particularly those with larger numbers.Whilst consumers and GPs shared preferences, the use of one format for all situations was not recommended. Overall, people across groups felt that risk expressed over five years was preferable to a ten-year risk, the latter being too remote.ConclusionsConsumers and GPs shared preferences for risk representation formats. Both groups liked the option to combine formats and tailor the risk information to reflect a specific individuals risk, to maximise understanding and provide a good basis for discussion.

Economic evaluation of australian stroke services : A prospective, multicenter study comparing dedicated stroke units with other care modalities

Background and Purpose— Level I evidence from randomized controlled trials demonstrates that the model of hospital care influences stroke outcomes; however, the economic evaluation of such is limited. An economic appraisal of 3 acute stroke care models was facilitated through the Stroke Care Outcomes: Providing Effective Services (SCOPES) study in Melbourne, Australia. The aim was to describe resource use up to 28 weeks poststroke for each model and examine the cost-effectiveness of stroke care units (SCUs). Methods— A prospective, multicenter, cohort study design was used. Costs and outcomes of stroke patients receiving 100% treatment in 1 of 3 inpatient care models (SCUs, mobile service, conventional care) were compared. Health-sector resource use up to 28 weeks was measured in 1999. Outcomes were thorough adherence to a suite of important clinical processes and the number of severe inpatient complications. Results— The sample comprised 395 participants (mean age 73 [SD 14], 77% first-ever strokes, males 53%). When compared with conventional care (n=84), costs for mobile service (n=209) were significantly higher (P=0.024), but borderline for SCU (n=102, P=0.08;

'Getting your life back on track after stroke': a Phase II multi-centered, single-blind, randomized, controlled trial of the Stroke Self-Management Program vs. the Stanford Chronic Condition Self-Management Program or standard care in stroke survivors.

AUD12 251;

Access to stroke care units in Australian public hospitals: facts and temporal progress

AUD15 903;