Risk of Repeat Psychiatric Emergency Department Visits in the Postpartum Period: A Population-Based Retrospective Cohort Study.

STUDY OBJECTIVE: Approximately 1 in 100 postpartum individuals visit an emergency department (ED) for a psychiatric reason. Repeat visits can signify problems with the quality of care received during or after the initial visit; this study aimed to understand risk for repeat postpartum psychiatric ED visits. METHODS: This population-based cohort study used Ontario, Canada health administrative data available through ICES (formerly the Institute for Clinical Evaluative Sciences) to identify all individuals discharged from postpartum psychiatric ED visits (2008 to 2021) and measured the proportion with one or more repeat psychiatric ED visit within 30 days. Using modified Poisson regression, we calculated the association between one or more repeat visits and sociodemographic, medical, obstetric, infant, continuity of care, past service use, and index ED visit characteristics both overall and stratified by psychiatric diagnosis. RESULTS: Of 14,100 individuals, 11.7% had one or more repeat psychiatric ED visits within 30 days. Repeat visit risk was highest for those with schizophrenia-spectrum disorders (28.2%, adjusted risk ratio 2.41; 95% confidence interval 1.88 to 3.08, versus 9.5% anxiety referent). Low (versus no) psychiatric care continuity, prior psychiatric ED visits and admissions, and initial visits within 90 days postpartum were also associated with increased risk, whereas intentional self-injury was associated with reduced risk. In diagnosis-stratified analyses, the factors most consistently associated with repeat ED visits were past psychiatric ED visits and admissions, and initial visits within 90 days postpartum. CONCLUSIONS: Over 1 in 10 postpartum psychiatric ED visits are followed by a repeat visit within 30 days. Targeted approaches are needed across clinical populations to reduce repeat ED visits in this population with young infants.

A diagnostic subgroup comparison of health care utilization patterns in individuals with eating disorders diagnosed in childhood and/or adolescence.

OBJECTIVE: This study examined a 2-year period after diagnosis of an eating disorder to compare health care utilization in diagnostic subgroups including: anorexia nervosa (AN), bulimia nervosa (BN), binge-eating disorder (BED), avoidant/restrictive food intake disorder (ARFID), and other specified eating disorders (Other). METHOD: We conducted a retrospective study of children diagnosed with AN (n = 674), BN (n = 230), BED (n = 59), ARFID (n = 171), and Other (n = 315). We used a general population cohort for comparison, matched 5:1 to the diagnostic subgroups on sex and birth date. We then conducted a separate analysis using the ARFID subgroup as a reference group compared to the other subgroups. Outcomes were determined using data linkage with health administrative databases and included hospitalizations, emergency department, general practitioner, psychiatry, and pediatrician visits. Odds ratios (dichotomous outcomes) and rate ratios (continuous outcome) were calculated. RESULTS: Mental health care utilization was higher for all subgroups compared to the general population. When the subgroups were compared to the ARFID subgroup, those with ARFID appeared to have similar health care utilization to the other subgroups, except when compared to those with AN. The AN subgroup had higher odds of a mental health related hospitalization (OR 1.62, 95% CI 1.04-2.5) higher rates of mental health related pediatrician visits (RR 1.76, 95% CI 1.26-2.46) and psychiatry visits (RR 1.69, 95% CI 1.07-2.68). CONCLUSIONS: Those with ARFID have similar utilization as other subtypes of eating disorders, except when compared to those with AN who have higher health care utilization. PUBLIC SIGNIFICANCE: Our study found that the health service needs of young people with all types of eating disorders are substantially higher than the general population, and it appears that Avoidant/Restrictive Food Intake Disorder (ARFID) has similar health care utilization to other eating disorders.

A Collaborative-Care Telephone-Based Intervention for Depression, Anxiety, and at-Risk Drinking in Primary Care: The PARTNERs Randomized Clinical Trial.

BACKGROUND: Collaborative care (CC) could improve outcomes in primary care patients with common mental conditions. We assessed the effectiveness of a transdiagnostic model of telephone-based CC (tCC) delivered by lay providers to primary care patients with depression, anxiety, or at-risk drinking. METHODS: PARTNERS was a pragmatic trial in 502 primary care adults presenting with depressive symptoms, anxiety symptoms, or at-risk drinking randomized to (1) usual care by primary care providers (PCPs) enhanced with the results of computer-assisted telephone-based assessments (at baseline and 4, 8, and 12 months later) (enhanced usual care [eUC]) or (2) tCC consisting of eUC plus frequent telephone coaching and psychoeducation provided by mental health technicians who also communicated to the PCP recommendations from a psychiatrist for evidence-based pharmacotherapy, psychotherapy, or, when indicated, referrals to mental health services. The primary analysis compared the change on the 9-item Patient Health Questionnaire (PHQ-9) in participants presenting with depression (n = 366) randomized to tCC versus eUC. Secondary analyses compared changes on the Generalized Anxiety Disorder-7 scale (GAD-7) in those presenting with anxiety (n = 298); or change in the number of weekly drinks in those presenting with at-risk drinking (n = 176). RESULTS: There were no treatment or time×treatment effects between tCC and eUC on PHQ-9 scores for patients with depression during the 12-month follow-up. However, there was a treatment effect (tCC > eUC) on GAD-7 scores in those with anxiety and a time×treatment interaction effect on the number of weekly drinks (tCC > eUC) in those with at-risk drinking. CONCLUSION: Implementing transdiagnostic tCC for common mental disorders using lay providers appears feasible in Canadian primary care. While tCC was not better than eUC for depression, there were some benefits for those with anxiety or at-risk drinking. Future studies will need to confirm whether tCC differentially benefits patients with depression, anxiety, or at-risk drinking.

Evaluating the population-level effects of oxycodone restrictions on prescription opioid utilization in Ontario.

PURPOSE: To investigate the impact of restrictions on access to long acting oxycodone on prescription opioid use and opioid-related harms. METHODS: Administrative health data from Ontario, Canada was used to measure differences in opioids dispensed and emergency department (ED) visits for opioid-related overdose, poisoning, or substance use following provincial restrictions on access to publicly insured OxyContin (February 29, 2012) and OxyNeo (February 28, 2013). This study focused on the cohort of provincial drug insurance eligible people (people 65+ and select low-income populations) who were dispensed oxycodone prior to the restrictions. Difference-in-differences models with a propensity score matched comparison group of people who were dispensed non-oxycodone opioids were used to estimate the main effects. RESULTS: In 6 months following the delisting of OxyContin, milligrams of morphine equivalents (MMEs) per person per week for all opioids fell by an average of 7.5% in people dispensed oxycodone relative to the comparison group, and an average of 13.8% in chronic recipients of oxycodone. In the 6 months following the restrictions on OxyNeo, MMEs per person per week fell by an average of 3.1% in all people dispensed oxycodone, and 25.2% in chronic oxycodone recipients. The decline in oxycodone dispensing among chronic oxycodone recipients corresponded with an increase in dispensing of other opioid formulations, particularly hydromorphone and fentanyl. No important differences were observed for ED visits related to opioid poisoning, overdose, or substance use disorder. CONCLUSIONS: Province-wide restrictions on access to long acting oxycodone had an impact on quantities of all opioids dispensed to chronic recipients of oxycodone, but small impacts on the full population of people dispensed oxycodone; the decline in use was partially offset by increases in use of other publicly-funded opioid formulations. This study suggests that policies limiting access to specific prescription opioids led to overall reductions in publicly funded prescription opioid use, particularly in chronic oxycodone recipients, without immediate evidence of changes in opioid-related ED visits.

The Role of the Medical School Training on Physician Opioid Prescribing Practices: Evidence from Ontario, Canada: Le rôle de la formation à la faculté de médecine à l'égard des pratiques de prescription d'opioïdes des médecins: données probantes d'Ontario, Canada.

BACKGROUND: Recent research found that physicians who completed medical school training at top-ranked U.S. medical schools prescribed fewer opioids than those trained at lower ranked schools, suggesting that physician training may play a role in the opioid epidemic. We replicated this analysis to understand whether this finding holds for Ontario, Canada. METHODS: We used data on all opioid prescriptions written by Ontario physicians between 2013 and 2017 from the Narcotics Monitoring System. Using the Corporate Provider Database and ICES Physician Database, which contain medical school of training, we linked patients who filled opioid prescriptions with their respective prescribing physician. Available data on Canadian medical school rankings were obtained from Maclean's news magazine. We used regression analysis to assess the relationship between number of opioid prescriptions and medical school ranking. RESULTS: Compared to the United States, average annual number of opioid prescriptions per physician was lower in Ontario (236 vs. 78). Unlike the United States, we found little evidence that physicians trained at lower ranked medical schools prescribed more than their top-ranked school counterparts after controlling for specialty and location of practice. However, primary care physicians trained at non-English-speaking foreign schools prescribed the most opioids even after excluding opioid maintenance therapy-related prescriptions. CONCLUSION: The role of medical school training on opioid prescribing patterns among Ontario physicians differs from that in the United States likely due to greater homogeneity of curricula among Canadian schools. Ensuring physicians trained abroad receive additional pain management/addiction training may help address part of the opioid epidemic in Ontario.

Correlations between opioid mortality increases related to illicit/synthetic opioids and reductions of medical opioid dispensing - exploratory analyses from Canada.

BACKGROUND: North America has been experiencing a persistent epidemic of opioid-related overdose mortality, which has increasingly been driven by fatalities from illicit, toxic opioids in most recent years. Patterns of synthetic opioid availability and related mortality are heterogeneous across Canada, and differing explanations exist as to their differentiated proliferation. We examined the perspective that heterogeneous province-based variations in prescription opioid availability, facilitated by various control strategies, post-2010 may have created regionally differential supply gaps for non-medical opioid use substituted by synthetic opioid products with differential impacts on mortality risks and outcomes in Canada. METHODS: We examined annual, prescription opioid dispensing rates and changes in the ten Canadian provinces (for the periods of 1) 2011-2018, 2) 'peak-year'-to-2018) in Defined Daily Doses/1000 population/day, derived from data from a large representative, stratified sample of community pharmacies projected to a Canada total. Annual, provincial opioid-related mortality rates and changes for years 2016-2018 were calculated from federal data. We computed correlation values (Pearson's R) between respective province-based change rates for prescription opioid dispensing and opioid-related mortality for the two over-time scenarios. RESULTS: All but one province featured reductions in prescription opioid dispensing 2011-2018; seven of the ten provinces had increases in opioid mortality 2016-2018. The correlation between changes in opioid dispensing (2011-2018) and in opioid-mortality (2016-2018) was r = 0.63 (df = 8, p-value: 0.05); the correlation was r = 0.57 (df = 8, p-value: 0.09) for changes in opioid dispensing 'peak year'-to-2018, respectively. CONCLUSIONS: Quasi-significant results indicate that recent increases in opioid-related deaths driven by illicit, synthetic opioids tended to be larger in provinces where reductions in prescription opioid availability have been more extensive. It is a plausible explanation that these reductions created supply gaps for non-medical opioid use increasingly filled by illicit, synthetic opioids differentially contributing to opioid-related deaths, generating un-intended adverse effects for previous interventions. General prevention measures to reduce opioid availability, and targeted prevention for at-risk opioid users exposed to toxic drug supply may be include counteractive effects and require coordinated reconciliation.

Goals of care or goals of life? A qualitative study of clinicians' and patients' experiences of hospital discharge using Patient-Oriented Discharge Summaries (PODS).

BACKGROUND: Recognizing the need for improved communication with patients at the point of hospital discharge, a group of clinicians, patients, and designers in Toronto, Canada collaborated to develop a standardized tool known as the Patient-Oriented Discharge Summary (PODS). Although quantitative results suggest PODS helps mitigate gaps in knowledge, a qualitative inquiry from the clinician and patient perspective of psychiatric hospital discharge using PODS has not been widely explored. Our aim was to explore clinicians' and patients' experiences with PODS. METHODS: We used a qualitative thematic analysis to explore clinicians' (n = 10) and patients' (n = 6) experiences with PODS. We used convenience sampling to identify and invite potential participants at the Center for Addiction and Mental Health in Toronto, Canada to participate in semi-structured interviews between February 2019 and September 2019. Data were analyzed using a thematic analysis approach to develop descriptive themes. RESULTS: Emerging themes from the data between clinicians and patients were both different and complementary. Clinicians described PODS using the concept of "goals of care." They relayed their experiences with PODS as a discrete event and emphasized its role in meeting their "goals of care" for discharge planning. Patients provided more of a "goals of life" perspective on recovery. They characterized PODS as only one facet of their recovery journey and not necessarily as a discrete or memorable event. Patients focused on their outcomes post-discharge and situated their experiences with PODS through its relation to their overall recovery. CONCLUSIONS: PODS was experienced differently by clinicians and patients. Clinicians experienced PODS as helpful in orienting them to the fulfillment of goals of care. Patients did not experience PODS as a particularly memorable intervention. Due to the information advantage that clinicians have about PODS, it is not surprising that clinicians and patients experienced the PODS differently. This study expanded our understanding of hospital discharge from clinicians and patients perspectives, and suggests that there are additional areas that need improvement.

Mental Health and Addictions System Performance in Ontario: An Updated Scorecard, 2009-2017.

Scorecards, particularly those that report on health system performance over time, can shed light on issues related to access and quality. In this updated 2020 Mental Health and Addictions Scorecard, we report on a number of indicators between 2009 and 2017. In general, we found that the performance of the mental health and addictions health system did not improve substantially over time. Among the many findings, over the past decade, suicide rates have not declined and rates of emergency department visits for deliberate self-harm have continued to rise. The highest rates of deliberate self-harm and the greatest rise over time in overall mental health and addictions-related outpatient visits, emergency department visits and hospitalizations were experienced by individuals aged 14-24 years. There continues to be a growing use of mental health services in outpatient settings, with the majority of care provided by primary care physicians. We also observed a slight decrease over time in the proportion of individuals who had no physician-delivered mental health care prior to presenting to the emergency department, which suggests an improvement in access over time.

"I Can't Crack the Code": What Suicide Notes Teach Us about Experiences with Mental Illness and Mental Health Care.

OBJECTIVE: While mental illness is a risk factor for suicidal behaviour and many suicide decedents receive mental health care prior to death, there is a comparative lack of research that explores their experiences of mental illness and care. Suicide notes offer unique insight into these subjective experiences. Our study explores the following questions: "How are mental illness and mental health care experienced by suicide decedents who leave suicide notes?" and "What role do these experiences play in their paths to suicide?" METHOD: We used a constructivist grounded theory framework to select a focus of qualitative analysis and engage in line-by-line open coding, axial coding, and theorizing of the data. Our sample is a set of 36 suicide notes that explicitly make mention of mental illness and/or mental health care, purposefully selected from a larger sample of 252 notes. RESULTS: The primary themes from our sample were 1) negotiating personal agency in the context of mental illness, 2) conflict between self and illness, and 3) experiences of mental health treatment leading to hopelessness and self-blame. These experiences with mental illness and mental health care can give rise to exhaustion and a desire to exercise personal agency, contributing to suicidal behaviour. CONCLUSIONS AND RELEVANCE: This study highlights unique perspectives by suicide decedents, whose voices and experiences may not have been heard otherwise, addressing a critical deficit in existing literature. These insights can potentially enrich clinical care or strengthen existing suicide prevention programs.

The Relation between Food Insecurity and Mental Health Care Service Utilization in Ontario.

OBJECTIVE: To determine the relationship between household food insecurity status over a 12-month period and adults' use of publicly funded health care services in Ontario for mental health reasons during this period. METHODS: Data for 80,942 Ontario residents, 18 to 64 years old, who participated in the Canadian Community Health Survey in 2005, 2007-2008, 2009-2010, or 2011-2012 were linked to administrative health care data to determine individuals' hospitalizations, emergency department visits, and visits to psychiatrists and primary care physicians for mental health reasons. Household food insecurity over the past 12 months was assessed using the Household Food Security Survey Module. Logistic regression models were used to estimate the odds of mental health service utilization in the past 12 months by household food insecurity status, adjusting for sociodemographic factors and prior use of mental health services. RESULTS: In our fully adjusted models, in comparison to food-secure individuals, the odds of any mental health care service utilization over the past 12 months were 1.15 (95% confidence interval [CI], 1.04 to 1.29) for marginally food-insecure individuals, 1.39 (95% CI, 1.19 to 1.42) for moderately food-insecure individuals, and 1.50 (95% CI, 1.35 to 1.68) for severely food-insecure individuals. A similar pattern persisted across individual types of services, with odds of utilization highest with severe food insecurity. CONCLUSIONS: Household food insecurity status is a robust predictor of mental health service utilization among working-age adults in Ontario. Policy interventions are required to address the underlying causes of food insecurity and the particular vulnerability of individuals with mental illness.

Patterns of methadone maintenance treatment provision in Ontario: Policy success or pendulum excess?

OBJECTIVE: To describe recent trends and patterns in methadone maintenance treatment (MMT) practice regionally and over time in the province of Ontario. DESIGN: Population-based descriptive study using health administrative data between September 1, 2011, and December 31, 2014. SETTING: Ontario. PARTICIPANTS: All active MMT-prescribing physicians and patients receiving MMT in the study period. MAIN OUTCOME MEASURES: Characteristics of MMT-prescribing physicians, including age, sex, specialty type, practice region, and practice volume; characteristics of patients receiving MMT, including age, sex, neighbourhood income, and region of residence. RESULTS: Between September 1, 2011, and December 31, 2014, the number of MMT-prescribing physicians and patients who received MMT increased by 26% and 42%, respectively. In 2014, there was a total of 312 MMT-prescribing physicians and 49 703 patients receiving MMT. In 2014 and on a per capita basis, patients receiving MMT were more prevalent in rural regions; and within rural regions, there were disproportionately large numbers of young female MMT patients residing in low-income neighbourhoods. CONCLUSION: The number of physicians prescribing MMT and patients receiving MMT has increased substantially between 2011 and 2014, with the largest per capita distribution occurring in rural regions and involving young adults. While availability of and access to MMT has improved considerably from before 2000 to levels of high use, these developments are likely influenced by recent trends in the proliferation of prescription opioid misuse across general populations.

Developing Indicators for the Child and Youth Mental Health System in Ontario.

When the Government of Ontario launched a comprehensive mental health and addictions strategy, the Institute for Clinical Evaluative Sciences (ICES) was tasked with developing a scorecard for ongoing monitoring of the child and youth mental health system. Using existing administrative and survey-based healthcare and education data, researchers at ICES developed a scorecard consisting of 25 indicators that described at-risk populations, child and youth mental healthcare and relevant outcomes. This scorecard is the first in Canada to report on performance indicators for the child and youth mental health system and provides a model for monitoring child and youth mental health using routinely collected administrative data.

Moving Out of the Office: Removing Barriers to Access to Psychiatrists.

Our paper offers a perspective on barriers to access to psychiatric care. Research shows that access depends not simply on the total number of trained specialists but also on their kind of practice. In some large cities, some practitioners follow a small number of patients in long-term psychotherapy, a practice supported by government insurance, which places no limits on the number of sessions or treatment duration. The problem is that long-term psychotherapy, despite a rich tradition in psychiatry, is not an evidence-based treatment. This review recommends a model in which psychiatrists spend more time in consultation with primary care professionals, in acute care for patients with severe mental illness, and in briefer, more cost-effective forms of psychotherapy.

A computer-assisted telephone collaborative care intervention provided by lay providers for the treatment of comorbid depression and at-risk drinking: Analysis of a randomized controlled trial.

INTRODUCTION: Virtual collaborative care for people with comorbid depression and at-risk drinking lacks strong evidence. Our aim was to assess the impact of 12 months of telephone collaborative care (tCC) versus enhanced usual care (eUC) on depression and drinking. METHODS: We performed a secondary analysis of the Primary care Assessment and Research of a Telephone intervention for Neuropsychiatric conditions with Education and Resources study (PARTNERs), a blinded randomized controlled trial. We examined 144 participants with comorbid depression and at-risk drinking, of which 129 were from the original sample whose data have been published, and 15 were studied since the original report had been published. PARTNERs compared eUC consisting of usual care plus assessment of symptoms at baseline, and 4, 8, and 12 months later vs. tCC consisting of eUC plus telephone-based coaching and symptom monitoring provided by a lay mental health technician to patients supervised by a psychiatrist. The study assessed depression response and remission using logistic regression; we assessed trajectory of drinking using Generalized-estimating equations (GEE). Baseline factors associated with likelihood of not exceeding number of drinks at 12 months were identified using decision trees. RESULTS: tCC produced a faster decline in the number of drinks than eUC (Wald Χ2 = 9.47, p = 0.02). However, drinking and depression outcomes did not differ significantly between the two groups at the end of treatment. Higher alcohol consumption at baseline (≥18 standard drinks per week in the tCC group and ≥11 standard drinks per week in the eUC group) was associated with a higher likelihood of having at-risk drinking after 12 months of treatment. CONCLUSIONS: Our findings suggest that, compared to eUC, tCC may accelerate drinking reductions in patients with comorbid depression and at-risk drinking. Both treatments were equally effective at the end of treatment for both depression and drinking outcomes.

Help-seeking behavior among adults who attempted or died by suicide in Ontario, Canada.

INTRODUCTION: This study aims to determine the relationship between rurality and help-seeking behavior prior to a suicide or suicide attempt. METHODS: Data from 2007 to 2017 were obtained from administrative databases held at ICES, which capture all hospital, emergency department (ED), and general practitioner (GP) visits across Ontario. Rurality was defined using the Rurality Index of Ontario scores. Help-seeking was based on accessing health services 1 year prior to the event. RESULTS: Among those who died by suicide (N = 9848), those living in rural areas were less likely to seek help from a psychiatrist (rural males: AOR = 0.42, 95% CI = 0.31-0.57; rural females: AOR = 0.46, 95% CI = 0.29-0.97) compared with those living in urban areas. We found a similar association among those who attempted suicide (N = 82,480) (rural males: AOR = 0.49, 95% CI = 0.43-0.56; rural females: AOR = 0.51, 95% CI = 0.46-0.57). Rural males and females were more likely to seek care from an ED for mental health reasons compared with urban males and females. CONCLUSIONS: Among people who died by suicide, those living in rural areas are generally less likely to access psychiatrists and GPs and more likely to access EDs, suggesting that people living in rural areas may have less access to care than their urban counterparts.

Effects of the Implementation of a Patient-Oriented Discharge Summary (PODS) on Pre- and Postdischarge Outcomes.

A patient-oriented discharge summary (PODS) is a patient-facing process to provide best practices in discharge planning. The PODS process was implemented in phases in 22 units of a large, publicly funded psychiatric hospital in Canada. The authors studied 7,624 discharges. Sustained implementation of the PODS process attained an ongoing PODS completion rate of 86.5%. Rates of medication reconciliation, patient-centered medication education, follow-up appointment scheduling, and medical discharge summary completion within 48 hours of discharge significantly improved over the implementation phase. Despite high uptakes of these best practices, more distal outcomes (e.g., follow-up appointment attendance and hospital readmission) did not improve.

Association between physician characteristics and practice-level uptake of paediatric virtual mental healthcare: a population-based study.

OBJECTIVE: To examine physician factors associated with practice-level uptake of virtual mental healthcare for children and adolescents. DESIGN, SETTING AND PARTICIPANTS: A population-based data linkage study of a cohort of all physicians (n=12 054) providing outpatient mental healthcare to children and adolescents (aged 3-17 years, n=303 185) in a single-payer provincial health system in Ontario, Canada from 1 July 2020 to 31 July 2021. EXPOSURES: Physician characteristics including gender, age, specialty, location of training, practice region, practice size and overall and mental health practice size. MAIN OUTCOMES: Practice-level proportion of outpatient virtual care provided: (1) mostly in-person (<25% virtual care), (2) hybrid (25%-99% virtual care) or (3) exclusively virtual (100% virtual care). Multinomial logistic regression models tested the association between practice-level virtual care provided and physician characteristics. RESULTS: Among physicians, 1589 (13.2%) provided mostly in-person mental healthcare with 8714 (67.8%) providing hybrid care, and 2291 (19.0%) providing exclusively virtual care. The provision of exclusive virtual care (vs mostly in-person) was associated with female sex (adjusted OR (aOR) 1.97, 95% CI 1.70 to 2.27 (ref: male)), foreign training (aOR 1.27, 95% CI 1.07 to 1.50 (ref: Canadian-trained)), family physicians (aOR 2.05, 95% CI 1.56 to 2.69 (ref: psychiatrist)) and reversely associated with large practice size (aOR 0.32, 95% CI 0.25 to 0.40 (ref smallest quintile)). Mostly in-person care was associated with older age physicians (71+ years) and practice outside the Toronto region. CONCLUSIONS AND RELEVANCE: In a single-payer universal healthcare system that remunerates physicians using the same fee structure for in-person and virtual outpatient care, there is heterogeneity in utilisation of virtual care that is associated with provider factors. This practice variation, with limited evidence on effectiveness and appropriate contexts for virtual care use, suggests there may be opportunity for further outcomes research and guidance on appropriate context for paediatric virtual mental healthcare delivery.

Using "Big Data" to Provide Insights into Early Adopters of Continuing Professional Development: An Example from Project ECHO.

INTRODUCTION: Mental health care is often managed in primary care with limited specialist support, particularly in rural and remote communities. Continuing professional development programs (CPD) can offer a potential solution to further mental health training; however, engaging primary care organizations (PCOs) can be challenging. The use of "big data" to identify factors influencing engagement in CPD programs has not been well studied. Therefore, the aim of this project was to use administrative health data from Ontario, Canada to identify characteristics of PCOs associated with early engagement in a virtual CPD program, Project Extension for Community Healthcare Outcomes (ECHO) Ontario Mental Health (ECHO ONMH). METHODS: Ontario health administrative data for fiscal year 2014 was used to compare the characteristics of ECHO ONMH-adopting PCOs, and their patients, to nonadopter organizations (N = 280 vs. N = 273 physicians). RESULTS: ECHO-adopting PCOs did not differ with respect to physician age or years of practice, although PCOs with more female physicians were somewhat more likely to participate. ECHO ONMH adoption was more likely in regions with lower psychiatrist supply, among PCOs using partial salary payment models, and those with a greater interprofessional complement. Patients of ECHO-adopters did not differ on the basis of gender or health care utilization (physical or mental health); however, ECHO-adopting PCOs tended to have patients with less psychiatric comorbidity. CONCLUSION: Models such as Project ECHO, which deliver CPD to primary care, are advanced to address lack of access to specialist health care. These findings support the use of administrative health data to assess the implementation, spread, and impact of CPD.