Reducing the burden of affective disorders: is evidence-based health care affordable?

Variation in and factors associated with psychosocial interventions for hospitalised self-harm patients in New South Wales, Australia

OBJECTIVE

Psychosocial interventions demonstrate benefits during care for self-harm patients, however their adoption in hospital care remain largely unknown. This study aimed to evaluate the variation in and factors associated with psychosocial intervention use when treating self-harm patients at New South Wales (NSW) public hospitals.

METHOD

We used the all-inclusive NSW Admitted Patient Data from July 2001 to June 2014. The primary outcome was receipt of hospital based psychosocial intervention. Mixed effect logistic models were used to quantify the between-hospital variation and patient and hospital-level characteristics in relation to outcome.

RESULTS

It was noted that over the 13-year study period, the use of psychosocial intervention increased over time by 4% per annum. Substantial variation in use was observed between hospitals, and receipt of psychosocial interventions were also associated with patient characteristics such as increasing age and an increasing number of comorbid mental disorders.

CONCLUSION

Despite the increasing trend in use of psychosocial intervention, it was not commonly adopted in many hospitals when treating self-harm patients, even cases with greater needs, suggesting substantial potential to improve uptake and targeting.

Cost-of-illness studies for bipolar disorder: systematic review of international studies

BACKGROUND AND OBJECTIVES

Bipolar disorder (BD) may result in a greater burden than all forms of cancer, Alzheimer's disease and epilepsy. Cost-of-illness (COI) studies provide useful information on the economic burden that BD imposes on a society. Furthermore, COI studies are pivotal sources of evidence used in economic evaluations. This study aims to give a general overview of COI studies for BD and to discuss methodological issues that might potentially influence results. This study also aims to provide recommendations to improve practice in this area, based on the review.

METHODS

A search was performed to identify COI studies of BD. The following electronic databases were searched: MEDLINE, EMBASE, PsycInfo, Cochrane Database of Systematic Reviews, HMIC and openSIGLE. The primary outcome of this review was the annual cost per BD patient. A narrative assessment of key methodological issues was also included. Based on these findings, recommendations for good practice were drafted.

RESULTS

Fifty-four studies were included in this review. Because of the widespread methodological heterogeneity among included studies, no attempt has been made to pool results of different studies. Potential areas for methodological improvement were identified. These were: description of the disease and population, the approach to deal with comorbidities, reporting the rationale and impact for choosing different cost perspectives, and ways in which uncertainty is addressed.

CONCLUSIONS

This review showed that numerous COI studies have been conducted for BD since 1995. However, these studies employed varying methods, which limit the comparability of findings. The recommendations provided by this review can be used by those conducting COI studies and those critiquing them, to increase the credibility and reporting of study results.

Is implementation of the 2013 Australian treatment guidelines for posttraumatic stress disorder cost-effective compared to current practice? A cost-utility analysis using QALYs and DALYs

OBJECTIVE

To assess, from a health sector perspective, the incremental cost-effectiveness of three treatment recommendations in the most recent Australian Clinical Practice Guidelines for posttraumatic stress disorder (PTSD). The interventions assessed are trauma-focused cognitive behavioural therapy (TF-CBT) and selective serotonin reuptake inhibitors (SSRIs) for the treatment of PTSD in adults and TF-CBT in children, compared to current practice in Australia.

METHOD

Economic modelling, using existing databases and published information, was used to assess cost-effectiveness. A cost-utility framework using both quality-adjusted life-years (QALYs) gained and disability-adjusted life-years (DALYs) averted was used. Costs were tracked for the duration of the respective interventions and applied to the estimated 12 months prevalent cases of PTSD in the Australian population of 2012. Simulation modelling was used to provide 95% uncertainty around the incremental cost-effectiveness ratios. Consideration was also given to factors not considered in the quantitative analysis but could determine the likely uptake of the proposed intervention guidelines.

RESULTS

TF-CBT is highly cost-effective compared to current practice at $19,000/QALY, $16,000/DALY in adults and $8900/QALY, $8000/DALY in children. In adults, 100% of uncertainty iterations fell beneath the $50,000/QALY or DALY value-for-money threshold. Using SSRIs in people already on medications is cost-effective at $200/QALY, but has considerable uncertainty around the costs and benefits. While there is a 13% chance of health loss there is a 27% chance of the intervention dominating current practice by both saving dollars and improving health in adults.

CONCLUSION

The three Guideline recommended interventions evaluated in this study are likely to have a positive impact on the economic efficiency of the treatment of PTSD if adopted in full. While there are gaps in the evidence base, policy-makers can have considerable confidence that the recommendations assessed in the current study are likely to improve the efficiency of the mental health care sector.

Updating medical school psychiatry curricula to meet projected mental health needs

OBJECTIVE

In view of the growing disease burden of mental disorders, we consider the pressing need to update medical school psychiatry education to better equip doctors to recognise and treat these conditions. Key challenges to the delivery of medical school mental health curricula, and possible directions for reform, are reviewed with the aims of stimulating collaboration and enhancing the efficiency across schools.

CONCLUSIONS

In Australia, medical school expansion provides opportunities to prepare many training doctors to meet growing mental health care needs. Despite this, published reviews of practice and curriculum models are notably lacking. Australia, unlike other countries, has yet to agree on a core curriculum in medical school psychiatry, with practices varying widely between schools. Curricula should equip doctors to better recognise and treat common mental disorders during early stages, as well as preparing some for specialist psychiatry training. High-quality, multidisciplinary teaching in varied clinical settings may boost teaching resources. Additionally, medical education provides opportunities to better equip doctors to take care of their own mental health. Key challenges are to achieve a consensus on core curricula across Australian medical schools, and an appropriate proportion of medical school curriculum time for mental disorders, relative to their complexity and large disease burden.

Lost working years due to mental disorders: an analysis of the Norwegian disability pension registry

Objectives

Mental disorders are prevalent diagnoses in disability benefit statistics, with awards often granted at younger age than for other diagnoses. We aimed to compare the number of lost working years following disability benefit award for mental disorders versus other diagnostic groups.

Methods

Data from the complete Norwegian official registry over disability benefit incidence, including primary diagnoses, were analyzed for the period 2001 to 2003 (N = 77,067), a time-period without any reform in the disability benefit scheme. Lost working years due to disability benefit award before scheduled age retirement at age 67 were calculated.

Results

Musculoskeletal disorders were the commonest reason for disability benefit awards (36.3%) with mental disorders in second place (24.0%). However, mental disorders were responsible for the most working years lost (33.8%) compared with musculoskeletal disorders (29.4%). Individuals awarded disability benefit for a mental disorder were on average 8.9 years younger (46.1 years) than individuals awarded for a musculoskeletal disorder (55.0 years), and 6.9 years younger than individuals awarded for any other somatic disorder (53.0 years). Anxiety and depressive disorders were the largest contributors to lost working years within mental disorders.

Conclusion

Age at award is highly relevant when the total burden of different diagnoses on disability benefits is considered. There is great disparity in total number of lost working years due to disability benefit award for different diagnostic groups. The high number of lost working years from mental disorders has serious consequences for both the individual and for the wider society and economy.

Cost-effectiveness analysis for antidepressants and cognitive behavioral therapy for major depression in Thailand

OBJECTIVE

To determine the cost-effectiveness of fluoxetine and cognitive-behavioral therapy (CBT) for major depression in Thailand.

METHODS

A microsimulation model was developed to describe the variation in course of disease between individuals. Model inputs included Thai data on disease parameters and costs while impact measures were derived from a systematic review and meta-analysis of the international literature. Fluoxetine as the cheapest antidepressant drug in Thailand was analyzed for treatment of episodes plus a 6-month continuation phase and for maintenance treatment over 5 years of follow-up. CBT was analyzed for episodic treatment and for 5-year maintenance treatment. Results are presented as cost (Thai bahts) per disability-adjusted life-year (DALY) averted, compared with a "do-nothing" scenario.

RESULTS

The cost-effectiveness ratios of all interventions were below 1 time Thailand's gross domestic product of 110,000 bahts per capita. The uncertainty ranges around the cost-effectiveness ratios overlap: maintenance treatment with CBT 11,000 bahts per DALY (8,000-14,000); episodic treatment with CBT 23,000 bahts per DALY (10,000-36,000); episodic plus continuation drug treatment 33,000 bahts per DALY (26,000-44,000); maintenance drug treatment 38,000 bahts per DALY (30,000-48,000); and episodic drug treatment 42,000 bahts per DALY (32,000-57,000).

CONCLUSIONS

CBT and generic fluoxetine are cost-effective treatment options for both episodic and maintenance treatment of major depression in Thailand. Maintenance treatment has the greatest potential of health gain.

Clinician-assisted Internet-based treatment is effective for panic: A randomized controlled trial

OBJECTIVE

To determine the efficacy of an Internet-based clinician-assisted cognitive behavioural treatment program (the Panic program) for panic disorder (with or without agoraphobia).

METHOD

Fifty-nine individuals meeting diagnostic criteria for panic disorder with agoraphobia were randomly assigned to a treatment group or to a waitlist control group. Treatment group participants completed the Panic program, comprising six on-line lessons, weekly homework assignments, received weekly email contact from a psychiatry registrar, and contributed to a moderated online discussion forum with other participants. An intention-to-treat model was used for data analyses.

RESULTS

Twenty-three (79%) of treatment group participants completed all lessons within the 8-week program, and post-treatment data were collected from 22/29 treatment group and 22/25 waitlist group participants. Compared to the control group, treatment group participants reported significantly reduced symptoms of panic as measured by the Panic Disorder Severity Scale, Body Sensation Questionnaire, and Agoraphobic Cognitions Questionnaires. Significant reductions were also reported on measures of disability and depression. The mean within- and between-group effect size (Cohen's d) on the Panic Disorder Severity Scale was 0.93 and 0.59, respectively, and effects were sustained at 1-month follow-up. Mean therapist time per participant was 75 minutes for the program.

CONCLUSIONS

These results replicate those from the open trial of the Panic Program indicating the efficacy of the Internet-based clinician-assisted cognitive behavioural treatment program for panic disorder with agoraphobia.

General practitioners' opinions on how to improve treatment of mental disorders in primary health care. Interviews with one hundred Norwegian general practitioners

Background

Improvements in treatment of mental disorders are repeatedly called for. General practitioners (GPs) are responsible for the majority of treatment of mental disorders. Consequently, we interviewed GPs about their opinions on how treatment of mental disorders in primary health care contexts could be improved.

Methods

Among GPs affiliated within the Norwegian reimbursement system, we approached 353, and made contact with 246 GP's. One-hundred of these agreed to participate in our study, and 95 of them expressed opinions on how to improve treatment of mental disorders. The telephone interviews were based on open-ended questions, responses were transcribed continuously, and content analysis was applied. Results are presented both as frequency tables of common responses, and as qualitative descriptions and quotations of opinions.

Results

Nearly all (95%) of the GPs had suggestions on how to improve treatment of mental disorders in primary health care. Increased capacity in secondary health care was suggested by 59% of GPs. Suggestions of improved collaboration with secondary health care were also common (57%), as were improvements of GPs' skills and knowledge relevant for diagnosing and treating mental disorders (40%) and more time for patients with mental disorders in GP contexts (40%).

Conclusions

The GPs' suggestions are in line with international research and debate. It is thought-provoking that the majority of GPs call for increased capacity in secondary care, and also better collaboration with secondary care. Some GPs made comparisons to the health care system for physical disorders, which is described as better-functioning. Our study identified no simple short-term cost-effective interventions likely to improve treatment for mental disorders within primary health care. Under-treatment of mental disorders is, however, also associated with significant financial burdens.

Clinician-assisted Internet-based treatment is effective for depression: randomized controlled trial

OBJECTIVE

The aim of the present study was to determine the efficacy of an Internet-based clinician-assisted computerized cognitive behavioural treatment (CaCCBT) programme for depression.

METHOD

Forty-five individuals meeting diagnostic criteria for depression were randomly assigned to the Sadness programme or to a waitlist control group. In the clinician-assisted Sadness programme, participants complete six online lessons, weekly homework assignments, receive weekly email contact from a clinical psychologist, and contribute to a moderated online discussion forum with other participants. An intention-to-treat model was used for data analyses.

RESULTS

A total of 20 (74%) treatment group participants completed all lessons within the 8 week programme, and post-treatment data were collected from 18/27 treatment group and 17/18 waitlist group participants. Treatment group participants reported significantly reduced symptoms of depression as measured by the Beck Depression Inventory-second edition and the Patient Health Questionnaire-Nine Item. Treatment group participants each received an average of eight email contacts (111 min of therapist time]. Mean within- and between-group effect sizes (Cohen's d) across the two measures of depressive symptoms were 0.98 and 0.75, respectively. Participants found the treatment programme acceptable and satisfactory.

CONCLUSIONS

These results replicate those from the pilot trial reported by Perini et al. and are consistent with literature indicating that Internet-based programmes for depression and other mental disorders combined with clinical guidance can result in clinically significant improvements. These data provide further support for the development of Internet-based treatment for common mental disorders.

A systematic review and meta-analysis of cognitive-behavioural interventions to reduce problem gambling: hedging our bets?

Problem gambling is of serious public, social and clinical concern, especially so because ease of access to different types of gambling is increasing. A systematic review and meta-analysis was carried out to determine whether Cognitive-Behavioural Therapies (CBT) were effective in reducing gambling behaviour. Twenty-five studies which met the inclusion criteria were identified. Overall, there was a highly significant effect of CBT in reducing gambling behaviours within the first three months of therapy cessation regardless of the type of gambling behaviour practiced. Effect sizes were also significant at six, twelve and twenty-four month follow-up periods. Sub-group analysis suggested that both individual and group therapies were equally as effective in the 3 month time window, however this equivalence was not clear at follow-up. All variants of CBT (cognitive therapy, motivational interviewing and imaginal desensitization) were significant, although there was tentative evidence that when different types of therapy were compared cognitive therapy had an added advantage. Meta-regression analyses showed that the quality of the studies influenced the effect sizes, with those of poorer quality having greater effect sizes. These results give an optimistic message that CBT, in various forms, is effective in reducing gambling behaviours. However, caution is warranted because of the heterogeneity of the studies. Evaluation of treatment for problem gambling lags behind other fields and this needs to be redressed in the future.

Responding to experiences of young people with common mental health problems attending Australian general practice

The development of evidence-based ("collaborative care") mental health services in primary care for young people with anxiety, depression and alcohol or other substance misuse is a major challenge. Data from two clinical audits of selected Australian general practices (1998-1999 and 2000-2002) were analysed to explore actual experiences of care among people aged 16-25 years. Syndromal (1998-1999: 31.0% [n = 1849/5957]; 2000-2002: 37.8% [n = 148/392]) and subsyndromal (1998-1999: 27.4% [n = 1635/5957]; 2000-2002: 29.1% [114/392]) mental disorders are very common among young people presenting to general practitioners. However, a mental health diagnosis (1998-1999: 42.6% [n = 740/1736]; 2000-2002: 52.0% [n = 77/148]) or provision of formal treatment (1998-1999: 36.1% [n = 600/1661]; 2000-2002: 51.7% [n = 74/143]) occurs in only about half of the patients with syndromal conditions. While some active treatment was received by 19.4% (1998-1999 [n = 1018/5236]) and 35.9% (2000-2002 [n = 133/370]) of the young people, respectively, the most commonly reported interventions were non-pharmacological alone (1998-1999: 13.1% [n = 687/5236]; 2000-2002: 22.4% [n = 83/370]) or non-pharmacological and pharmacological combinations (1998-1999: 4.1% [n = 214/5236]; 2000-2002: 10.3% [n = 38/370]). Only rarely is pharmacological treatment alone provided (1998-1999: 2.2% [n = 117/5236]; 2000-2002: 3.2% [n = 12/370]). New systems of primary care for young people need to be based on proven collaborative care models and encourage presentations for care, increase detection rates, and promote access to information and effective e-health services. Improved access to specific psychological treatments should remain a priority.

Mental health expenditure in Australia: time for affirmative action

In Australia, there is a clear relationship (r=-0.56) between the ratio of health expenditure to burden and the ratio of mortality to disability across illness groups. Those illnesses with high mortality relative to disability (e.g. cancer and cardiovascular) are associated with lower health expenditure, relative to the burden they impose. Conversely, illnesses with low mortality but high disability (e.g. musculoskeletal disorders) demonstrate higher expenditure. The notable exception is mental health, which has low mortality, high disability and very low health expenditure. Indeed, the relationship between the mortality/disability and health expenditure/burden ratios is stronger (r=-0.72) when mental health is excluded. As this disparity cannot be explained by a lack of cost-effective treatments for mental disorders, we propose a process of affirmative action for mental health. Urgent investments in cost-effective modes of care are required and these should prioritise increased access among those subpopulations disadvantaged by other social, economic or geographic factors.

Is depression overdiagnosed? No

Rates of diagnosis of depression have risen steeply in recent years. Gordon Parker believes this is because current criteria are medicalising sadness, but Ian Hickie argues that many people are still missing out on lifesaving treatment

Have education and publicity about depression made a difference? Comparison of prevalence, service use and excess costs in South Australia: 1998 and 2004

OBJECTIVE

To identify changes in depression, its management and associated excess costs, between 1998 and 2004 in South Australia.

METHODS

A face-to-face Health Omnibus Survey was conducted in 2004 among 3015 randomly selected participants aged 15 years and over, who were a random and representative sample of the South Australian population, and this was compared with a survey conducted in 1998 that used the same methodology. The main outcome measures were prevalence of depression detected by the Mood Module of the Primary Care Evaluation of Mental Disorders (PRIME-MD); use of health services; health-related quality of life assessed by the Assessment of Quality of Life; estimates of excess costs and demographic data.

RESULTS

There was no significant change in the overall prevalence of depression, although there was a significant decrease in respondents with other depressions, and a non-significant increase in those with major depression. No significant differences in the mean number of PRIME-MD depression symptoms were reported. Greater use of predominantly non-medical treatment services and antidepressants were reported by both those with depression and those without depression. There was a marked increase in the associated excess costs of depression.

CONCLUSIONS

There has been no significant improvement in the prevalence of depression and its associated morbidity and financial burden in the South Australian community between 1998 and 2004, despite a number of professional and community education programmes. It is possible that without these efforts and the increased treatment reported on in this survey, there may have been an increase in the prevalence of depression and an even greater financial burden. However, it is also possible that community services for the provision of treatment for depression have not been able to implement research strategies that have been demonstrated to be effective.

What is the value of treating schizophrenia?

OBJECTIVE

Recent generalized cost-effectiveness analyses contrasting schizophrenia with high prevalence mental disorders have noted a need to investigate the mechanisms by which the tensions between equity and efficiency can be reconciled and inform priority setting in resource allocation. This paper explores and illustrates some possible strategies for valuing mental health states, with the broad goal of improving resource allocation decisions.

METHOD

Health utility gains derived for current and optimal treatments for schizophrenia, depression and anxiety disorders, potential societal preference weightings, and annual costs per treated case, are used to illustrate the magnitude of the impacts on relative cost-efficiency and societal welfare estimates. These estimates are based on costs per additional quality adjusted life year (QALY) and costs per additional S-QALY (i.e. QALYs adjusted for societal value of health gains) respectively.

RESULTS

When broader societal preferences are ignored, current and optimal treatments for depression and anxiety are around 10 times more efficient than those for schizophrenia, but treatments for all three disorders appear to give rise to similar levels of societal welfare when weighting factors reflecting equity concerns are incorporated.

CONCLUSIONS

There is manifest inequality in health between individuals with schizophrenia and those with high prevalence mental disorders, even with optimal treatment. Schizophrenia is much more costly to treat but other factors require consideration. Inclusion of societal preferences should lead to more rational decision-making and improved societal welfare. In turn, greater effort needs to be given to the development and validation of appropriate weighting factors reflecting distributive preferences in mental health.

Depression care for the elderly: reducing barriers to evidence-based practice

This paper provides an overview of five key bodies of evidence identifying: (1) Characteristics of depression among older adults -- its prevalence, risk factors and illness course, and impact on functional status, mortality, use of health services, and health care costs; (2) Effective Interventions, including pharmacologic, psychotherapies, care management, and combined intervention models; (3) Known Barriers to depression care including patient, provider and service system barriers; (4) Effective Organizational and Educational Strategies to reduce barriers to depression care; and (5) Key Factors in Translating Research into Practice. There is strong empirical support for implementing strategies to improve depression care for older adults.

Cost-effectiveness of cognitive-behavioural therapy for mental disorders: implications for public health care funding policy in Canada

OBJECTIVE

Publicly funded cognitive-behavioural therapy (CBT) for mental disorders is scarce in Canada, despite proven efficacy and guidelines recommending its use. This paper reviews published data on the economic impact of CBT to inform recommendations for current Canadian mental health care funding policy.

METHOD

We searched the literature for economic analyses of CBT in the treatment of mental disorders.

RESULTS

We identified 22 health economic studies involving CBT for mood, anxiety, psychotic, and somatoform disorders. Across health care settings and patient populations, CBT alone or in combination with pharmacotherapy represented acceptable value for health dollars spent, with CBT costs offset by reduced health care use.

CONCLUSIONS

International evidence suggests CBT is cost-effective. Greater access to CBT would likely improve outcomes and result in cost savings. Future research is warranted to evaluate the economic impact of CBT in Canada.

Cost-effectiveness of clinical interventions for reducing the global burden of bipolar disorder

BACKGROUND

Bipolar disorder has been ranked seventh among the worldwide causes of non-fatal disease burden.

AIMS

To estimate the cost-effectiveness of interventions for reducing the global burden of bipolar disorder.

METHOD

Hospital- and community-based delivery of two generic mood stabilisers (lithium and valproic acid), alone and in combination with psychosocial treatment, were modelled for 14 global sub-regions. A population model was employed to estimate the impact of different strategies, relative to no intervention. Total costs (in international dollars (I$)) and effectiveness (disability-adjusted life years (DALYs) averted) were combined to form cost-effectiveness ratios.

RESULTS

Baseline results showed lithium to be no more costly yet more effective than valproic acid, assuming an anti-suicidal effect for lithium but not for valproic acid. Community-based treatment with lithium and psychosocial care was most cost-effective (cost per DALY averted: I$2165-6475 in developing sub-regions; I$5487-21123 in developed sub-regions).

CONCLUSIONS

Community-based interventions for bipolar disorder were estimated to be more efficient than hospital-based services, each DALY averted costing between one and three times average gross national income.

Assessing cost-effectiveness in mental health: helping policy-makers prioritize and plan health services

OBJECTIVE

We assessed, from a health sector perspective, options for change that could improve the efficiency of Australia's current mental health services by directing available resources toward 'best practice' cost-effective services.

METHOD

We summarize cost-effectiveness results of a range of interventions for depression, schizophrenia, attention deficit hyperactivity disorder and anxiety disorders that have been presented in previous papers in this journal. Recommendations for change are formulated after taking into account 'second-filter criteria' of equity, feasibility of implementing change, acceptability to stakeholders and the strength of the evidence. In addition, we estimate the impact on total expenditure if the recommended mental health interventions for depression and schizophrenia are to be implemented in Australia.

RESULTS

There are cost-effective treatment options for mental disorders that are currently underutilized (e.g. cognitive-behavioural therapy (CBT) for depression and anxiety, bibliotherapy for depression, family interventions for schizophrenia and clozapine for the worst course of schizophrenia). There are also less cost-effective treatments in current practice (e.g. widespread use of olanzapine and risperidone in the treatment of established schizophrenia and, within those atypicals, a preference for olanzapine over risperidone). Feasibility of funding mechanisms and training of staff are the main second-filter issues for CBT and family interventions. Acceptability to various stakeholders is the main barrier to implementation of more cost-effective drug treatment regimens. More efficient drug intervention options identified for schizophrenia would cost 68 million Australian dollars less than current practice. These savings would more than cover the estimated 36M Australian dollars annual cost of delivering family interventions to the 51% of people with schizophrenia whom we estimated to be eligible and this would lead to an estimated 12% improvement in their health status. Implementing recommended strategies for depression would cost 121M Australian dollars annually for the 24% of people with depression who seek care currently, but do not receive an evidence-based treatment.

CONCLUSIONS

Despite considerable methodological problems, a range of cost-effective and less cost-effective interventions for major mental disorders can be discerned. The biggest hurdle to implementation of more efficient mental health services is that this change would require reallocation of funds between interventions, between disorders and between service providers with different funding mechanisms.

Australian mental health reform: time for real outcomes

After 12 years of national mental health reform, major service gaps and poor experiences of care are common. The mental health community reports little progress in implementing its key priorities, such as expanded early-intervention programs, comanagement of people with mental health problems and related alcohol or substance misuse, and widening of the spectrum of acute care settings. We propose new national targets for reducing the social and economic costs of poor mental health; these include increased access to effective care, reduced suicide rates and improved rates of return to full social and economic participation. We detail specific service reforms designed to maximise the chance of achieving these targets, and prioritise youth health and integrated primary care programs. New independent and national reporting systems on the progress of mental health reform are urgently required.

Using the effect size to model change in preference values from descriptive health status

OBJECTIVES

This pilot study describes a modelling approach to translate group-level changes in health status into changes in preference values, by using the effect size (ES) to summarize group-level improvement.

METHODS

ESs are the standardized mean difference between treatment groups in standard deviation (SD) units. Vignettes depicting varying severity in SD decrements on the SF-12 mental health summary scale, with corresponding symptom severity profiles, were valued by a convenience sample of general practitioners (n = 42) using the rating scale (RS) and time trade-off methods. Translation factors between ES differences and change in preference value were developed for five mental disorders, such that ES from published meta-analyses could be transformed into predicted changes in preference values.

RESULTS

An ES difference in health status was associated with an average 0.171-0.204 difference in preference value using the RS, and 0.104-0.158 using the time trade off.

CONCLUSIONS

This observed relationship may be particular to the specific versions of the measures employed in the present study. With further development using different raters and preference measures, this approach may expand the evidence base available for modelling preference change for economic analyses from existing data.

General practitioners’ response to depression and anxiety in the Australian community: a preliminary analysis

OBJECTIVES

To examine the uptake by general practitioners (GPs) of the five key components of the Better Outcomes in Mental Health Care (BOiMHC) initiative: education and training for GPs; the three-step mental health process; focussed psychological strategies; access to allied health services; and access to psychiatrist support.

SETTING

All Australian states and territories during the first 15 months of the initiative (1 July 2002 - 30 September 2003).

DESIGN

Retrospective survey of de-identified registration data held by the General Practice Mental Health Standards Collaboration (training uptake), de-identified Health Insurance Commission (HIC) billing data (provision of the three-step mental health process, focussed psychological strategies and case conferences with psychiatrists), and reports from "access to allied health services" projects to the Australian Department of Health and Ageing (project participation).

MAIN OUTCOME MEASURES

Number and percentage of Australian GPs certified as eligible to participate in the initiative; provision of the three-step mental health process and focussed psychological strategies by GPs; participation in allied health pilot projects; and access to psychiatrist support.

RESULTS

Within 15 months of the BOiMHC initiative commencing, 3046 GPs (about 15% of Australian GPs) had been certified as eligible to participate, including 387 who had registered to provide focussed psychological strategies. GPs had completed 11 377 three-step mental health processes and 6472 sessions of focussed psychological strategies. Sixty-nine "access to allied health services" projects had been funded, with the original 15 pilot projects enabling 346 GPs to refer 1910 consumers to 134 individual allied health professionals and 10 agencies. In contrast, the "access to psychiatrist support" component was less successful, with the HIC billed for 62 case conferences at which a psychiatrist and a GP were present.

CONCLUSION

The level of uptake of the main components of the BOiMHC initiative has expanded the national capacity to respond to the needs of people with common mental disorders, such as depression and anxiety.

Utilising survey data to inform public policy: comparison of the cost-effectiveness of treatment of ten mental disorders

BACKGROUND

Mental health survey data are now being used proactively to decide how the burden of disease might best be reduced.

AIMS

To study the cost-effectiveness of current and optimal treatments for mental disorders and the proportion of burden avertable by each.

METHOD

Data for three affective, four anxiety and two alcohol use disorders and for schizophrenia were compared interms of cost, burden averted and efficiency of current and optimal treatment. We then calculated the burden unavertable given current knowledge. The unit of health gain was a reduction in the years lived with disability (YLDs).

RESULTS

Summing across all disorders, current treatment averted 13% of the burden, at an average cost of 30,000 Australian dollars per YLD gained. Optimal treatment at current coverage could avert 20% of the burden, at an average cost of 18,000 Australian dollars per YLD gained. Optimal treatment at optimal coverage could avert 28% of the burden, at 16,000 Australian dollars per YLD gained. Sixty per cent of the burden of mental disorders was deemed to be unavertable.

CONCLUSIONS

The efficiency of treatment varied more than tenfold across disorders. Although coverage of some of the more efficient treatments should be extended, other factors justify continued use of less-efficient treatments for some disorders.