Creating more comparable cohorts in observational palliative care studies: A proposed framework to improve applicability and replicability of research.

BACKGROUND: Palliative care is characterised by heterogeneous patient and caregiver populations who are provided care in different health systems and a research base including a large proportion of observational, mostly retrospective studies. The inherent diversity of palliative care populations and the often inadequate study descriptions challenge the application of new knowledge into practice and reproducibility for confirmatory studies. Being able to define systematically study populations would significantly increase their generalisability and effective translation into practice. PROPOSAL: Based on an informal consensus process by active palliative care researchers challenged by this problem and a review of the current evidence, we propose an approach to creating more comparable cohorts in observational (non-randomised) palliative care studies that relies on defining the study population in relation to a fixed, well-defined event from which analyses are built ('anchoring'). In addition to providing a detailed and complete description of the study population, anchoring is the critical step in creating more comparable cohorts in observational palliative care studies. Anchoring can be done with respect to a single or multiple data points, and can support both prospective and retrospective data collection and analysis. DISCUSSION: Anchoring the cohort to reproducible data points will help create more comparable cohorts in palliative care whilst mitigating its inherent heterogeneity. This, in turn, will help optimise the generalisability, applicability and reproducibility of observational palliative care studies to strengthen the evidence base and improve practice.

In-hospital outcomes by insurance type among patients undergoing percutaneous coronary interventions for acute myocardial infarction in New South Wales public hospitals.

BACKGROUND: International evidence suggests patients receiving cardiac interventions experience differential outcomes by their insurance status. We investigated outcomes of in-hospital care according to insurance status among patients admitted in public hospitals with acute myocardial infarction (AMI) undergoing percutaneous coronary intervention (PCI). METHODS: We conducted a cohort study within the Australian universal health care system with supplemental private insurance. Using linked hospital and mortality data, we included patients aged 18 + years admitted to New South Wales public hospitals with AMI and undergoing their first PCI from 2017-2020. We measured hospital-acquired complications (HACs), length of stay (LOS) and in-hospital mortality among propensity score-matched private and publicly funded patients. Matching was based on socio-demographic, clinical, admission and hospital-related factors. RESULTS: Of 18,237 inpatients, 30.0% were privately funded. In the propensity-matched cohort (n = 10,630), private patients had lower rates of in-hospital mortality than public patients (odds ratio: 0.59, 95% CI: 0.45-0.77; approximately 11 deaths avoided per 1,000 people undergoing PCI procedures). Mortality differences were mostly driven by STEMI patients and those from major cities. There were no significant differences in rates of HACs or average LOS in private, compared to public, patients. CONCLUSION: Our findings suggest patients undergoing PCI in Australian public hospitals with private health insurance experience lower in-hospital mortality compared with their publicly insured counterparts, but in-hospital complications are not related to patient health insurance status. Our findings are likely due to unmeasured confounding of broader patient selection, socioeconomic differences and pathways of care (e.g. access to emergency and ambulatory care; delays in treatment) that should be investigated to improve equity in health outcomes.

Specific psychological therapies versus other therapies or no treatment for severe and enduring anorexia nervosa.

BACKGROUND: Anorexia nervosa is a psychological condition characterised by self-starvation and fear or wait gain or other body image disturbance. The first line of treatment is specific psychological therapy; however, there is no consensus on best practice for treating people who develop severe and enduring anorexia nervosa (SEAN). Notably, there is no universal definition of SEAN. OBJECTIVES: To evaluate the benefits and harms of specific psychological therapies for severe and enduring anorexia nervosa compared with other specific therapies, non-specific therapies, no treatment/waiting list, antidepressant medication, dietary counselling alone, or treatment as usual. SEARCH METHODS: We used standard, extensive Cochrane search methods. The last search date was 22 July 2022. SELECTION CRITERIA: We included parallel randomised controlled trials (RCTs) of people (any age) with anorexia nervosa of at least three years' duration. Eligible experimental interventions were any specific psychological therapy for improved physical and psychological health in anorexia nervosa, conducted in any treatment setting with no restrictions in terms of number of sessions, modality, or duration of therapy. Eligible comparator interventions included any other specific psychological therapy for anorexia nervosa, non-specific psychological therapy for mental health disorders, no treatment or waiting list, antipsychotic treatment (with or without psychological therapy), antidepressant treatment (with or without psychological therapy), dietary counselling, and treatment as usual as defined by the individual trials. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by Cochrane. Our primary outcomes were clinical improvement (weight restoration to within the normal weight range for participant sample) and treatment non-completion. Results were presented using the GRADE appraisal tool. MAIN RESULTS: We found two eligible studies, but only one study provided usable data. This was a parallel-group RCT of 63 adults with SEAN who had an illness duration of at least seven years. The trial compared outpatient cognitive behaviour therapy for SEAN (CBT-SEAN) with specialist supportive clinical management for SEAN (SSCM-SE) over eight months. It is unclear if there is any difference between the effect of CBT-SEAN versus SSCM-SE on clinical improvement at 12 months (risk ratio (RR) 1.42, 95% confidence interval (CI) 0.66 to 3.05) or treatment non-completion (RR 1.72, 95% CI 0.45 to 6.59). There were no reported data on adverse effects. The trial was at high risk of performance and detection bias. We rated the GRADE level of evidence as very low-certainty for both primary outcomes, downgrading for imprecision and risk of bias concerns. AUTHORS' CONCLUSIONS: This review reports evidence from one trial that evaluated CBT-SEAN versus SSCM-SE. There was very low-certainty evidence of little or no difference in clinical improvement and treatment non-completion between the two therapies. There is a need for larger high-quality trials to determine the benefits of specific psychological therapies for people with SEAN. These should take into account the duration of illness as well as participants' previous experience with evidence-based psychological therapy for anorexia nervosa.

"SQiD, the Single Question in Delirium; can a single question help clinicians to detect delirium in hospitalised cancer patients?" running heading Single Question in Delirium" (Bcan-D-20-01665).

AIM: A serious syndrome for cancer in-patients, delirium risk increases with age and medical acuity. Screening tools exist but detection is frequently delayed or missed. We test the 'Single Question in Delirium' (SQiD), in comparison to psychiatrist clinical interview. METHODS: Inpatients in two comprehensive cancer centres were prospectively screened. Clinical staff asked informants to respond to the SQiD: "Do you feel that [patient's name] has been more confused lately?". The primary endpoint was negative predictive value (NPV) of the SQiD versus psychiatrist diagnosis (Diagnostic and Statistics Manual criteria). Secondary endpoints included: NPV of the Confusion Assessment Method (CAM), sensitivity, specificity and Cohen's Kappa coefficient. RESULTS: Between May 2012 and July 2015, the SQiD plus CAM was applied to 122 patients; 73 had the SQiD and psychiatrist interview. Median age was 65 yrs. (interquartile range 54-74), 46% were female; median length of hospital stay was 12 days (5-18 days). Major cancer types were lung (19%), gastric or other upper GI (15%) and breast (14%). 70% of participants had stage 4 cancer. Diagnostic values were similar between the SQiD (NPV = 74, 95% CI 67-81; kappa = 0.32) and CAM (NPV = 72, 95% CI 67-77, kappa = 0.32), compared with psychiatrist interview. Overall the CAM identified only a small number of delirious cases but all were true positives. The specificity of the SQiD was 87% (74-95) The SQiD had higher sensitivity than CAM (44% [95% CI 41-80] vs 26% [10-48]). CONCLUSION: The SQiD, administered by bedside clinical staff, was feasible and its psychometric properties are now better understood. The SQiD can contribute to delirium detection and clinical care for hospitalised cancer patients.

Identifying patients using antidepressants for the treatment of depression: A predictive algorithm for use in pharmaceutical and medical claims data.

PURPOSE: Records of antidepressant dispensings are often used as a surrogate measure of depression. However, as antidepressants are frequently prescribed for indications other than depression, this is likely to result in misclassification. This study aimed to develop a predictive algorithm that identifies patients using antidepressants for the treatment of depression. METHODS: Pharmaceutical Benefits Scheme (PBS) and Medicare Benefits Schedule (MBS) claims data were linked to follow-up questionnaires (completed in 2012-2013) for participants of the 45 and Up Study-a cohort study of residents of New South Wales, Australia, aged 45 years and older. The sample composed participants who were dispensed an antidepressant in the 30 days prior to questionnaire completion (n = 3162). An algorithm based on patient characteristics, pharmaceutical dispensings, and claims for mental health services was built using group-lasso interaction network (glinternet), with self-reported receipt of treatment for depression as the outcome. The predictive performance of the algorithm was assessed via bootstrap resampling. RESULTS: The algorithm composes 15 main effects and 11 interactions, with type of antidepressant dispensed and claims for mental health services the strongest predictors. The ability of the algorithm to discriminate between antidepressant users with and without depression was 0.73. At a predicted probability cut-off of 0.6, specificity was 93.8% and sensitivity was 23.6%. CONCLUSIONS: Using this algorithm with a high probability cut-off yields high specificity and facilitates the exclusion of individuals using antidepressants for indications other than depression, thereby mitigating the risk of confounding by indication when evaluating the outcomes of antidepressant use.

Inpatient versus outpatient care, partial hospitalisation and waiting list for people with eating disorders.

BACKGROUND: Clinical guidelines recommend outpatient care for the majority of people with an eating disorder. The optimal use of inpatient treatment or combination of inpatient and partial hospital care is disputed and practice varies widely. OBJECTIVES: To assess the effects of treatment setting (inpatient, partial hospitalisation, or outpatient) on the reduction of symptoms and increase in remission rates in people with:1. Anorexia nervosa and atypical anorexia nervosa;2. Bulimia nervosa and other eating disorders. SEARCH METHODS: We searched Ovid MEDLINE (1950- ), Embase (1974- ), PsycINFO (1967- ) and the Cochrane Central Register of Controlled Trials (CENTRAL) to 2 July 2018. An earlier search of these databases was conducted via the Cochrane Common Mental Disorders Controlled Trial Register (CCMD-CTR) (all years to 20 November 2015). We also searched the WHO International Clinical Trials Registry Platform and ClinicalTrials.gov (6 July 2018). We ran a forward citation search on the Web of Science to identify additional reports citing any of the included studies, and screened reference lists of included studies and relevant reviews identified during our searches. SELECTION CRITERIA: We included randomised controlled trials that tested the efficacy of inpatient, outpatient, or partial hospital settings for treatment of eating disorder in adults, adolescents, and children, whose diagnoses were determined according to the DSM-5, or other internationally accepted diagnostic criteria. We excluded trials of treatment setting for medical or psychiatric complications or comorbidities (e.g. hypokalaemia, depression) of an eating disorder. DATA COLLECTION AND ANALYSIS: We followed standard Cochrane procedures to select studies, extract and analyse data, and interpret and present results. We extracted data according to the DSM-5 criteria. We used the Cochrane tool to assess risk of bias. We used the mean (MD) or standardised mean difference (SMD) for continuous data outcomes, and the risk ratio (RR) for binary outcomes. We included the 95% confidence interval (CI) with each result. We presented the quality of the evidence and estimate of effect for weight or body mass index (BMI) and acceptability (number who completed treatment), in a 'Summary of findings' table for the comparison for which we had sufficient data to conduct a meta-analysis. MAIN RESULTS: We included five trials in our review. Four trials included a total of 511 participants with anorexia nervosa, and one trial had 55 participants with bulimia nervosa. Three trials are awaiting classification, and may be included in future versions of this review. We assessed a risk of bias from lack of blinding of participants and therapists in all trials, and unclear risk for allocation concealment and randomisation in one study.We had planned four comparisons, and had data for meta-analyses for one. For anorexia nervosa, there may be little or no difference between specialist inpatient care and active outpatient or combined brief hospital and outpatient care in weight gain at 12 months after the start of treatment (standardised mean difference (SMD) -0.22, 95% CI -0.49 to 0.05; 2 trials, 232 participants; low-quality evidence). People may be more likely to complete treatment when randomised to outpatient care settings, but this finding is very uncertain (risk ratio (RR) 0.75, 95% CI 0.64 to 0.88; 3 trials, 319 participants; very low-quality evidence). We downgraded the quality of the evidence for these outcomes because of risks of bias, small numbers of participants and events, and variable level of specialist expertise and intensity of treatment.We had no data, or data from only one trial for the primary outcomes for each of the other three comparisons.No trials measured weight or acceptance of treatment for anorexia nervosa, when comparing inpatient care provided by a specialist eating disorder service and health professionals and a waiting list, no active treatment, or treatment as usual.There was no clear difference in weight gain between settings, and only slightly more acceptance for the partial hospital setting over specialist inpatient care for weight restoration in anorexia nervosa.There was no clear difference in weight gain or acceptability of treatment between specialist inpatient care and partial hospital care for bulimia nervosa, and other binge eating disorders. AUTHORS' CONCLUSIONS: There was insufficient evidence to conclude whether any treatment setting was superior for treating people with moderately severe (or less) anorexia nervosa, or other eating disorders.More research is needed for all comparisons of inpatient care versus alternate care.

Multimorbidity among Aboriginal people in New South Wales contributes significantly to their higher mortality.

OBJECTIVES: To compare the prevalence of multimorbidity and its impact on mortality among Aboriginal and non-Aboriginal Australians who had been hospitalised in New South Wales in the previous 10 years. DESIGN, SETTING AND PARTICIPANTS: Cohort study analysis of linked NSW hospital (Admitted Patient Data Collection) and mortality data for 5 437 018 New South Wales residents with an admission to a NSW hospital between 1 March 2003 and 1 March 2013, and alive at 1 March 2013. MAIN OUTCOME MEASURES: Admissions for 30 morbidities during the 10-year study period were identified. The primary outcome was the presence or absence of multimorbidity during the 10-year lookback period; the secondary outcome was mortality in the 12 months from 1 March 2013 to 1 March 2014. RESULTS: 31.5% of Aboriginal patients had at least one morbidity and 16.1% had two or more, compared with 25.0% and 12.1% of non-Aboriginal patients. After adjusting for age, sex, and socio-economic status, the prevalence of multimorbidity among Aboriginal people was 2.59 times that for non-Aboriginal people (95% CI, 2.55-2.62). The prevalence of multimorbidity was higher among Aboriginal people in all age groups, in younger age groups because of the higher prevalence of mental morbidities, and from age 60 because of physical morbidities. The age-, sex- and socio-economic status-adjusted hazard of one-year mortality (Aboriginal v non-Aboriginal Australians) was 2.43 (95% CI, 2.24-2.62), and 1.51 (95% CI, 1.39-1.63) after also adjusting for morbidity count. CONCLUSIONS: The prevalence of multimorbidity was higher among Aboriginal than non-Aboriginal patients, and this difference accounted for much of the difference in mortality between the two groups. Evidence-based interventions for reducing multimorbidity among Aboriginal and Torres Strait Islander Australians must be a priority.

Supporting continuity of care between prison and the community for women in prison: a medical record review.

Objectives The aim of the present study was to examine health information transfer and continuity of care arrangements between prison and community health care providers (HCPs) for women in prison. Methods Medical records of women released from New South Wales prisons in 2013-14 were reviewed. Variables included health status, health care in prison and documented continuity of care arrangements, including information transfer between prison and community. Associations were measured by adjusted odds ratios (AORs) using a logistic regression model. Text from the records was collected as qualitative data and analysed to provide explanatory detail. Results In all, 212 medical records were systematically sampled and reviewed. On prison entry, information was requested from community HCPs in 53% of cases, mainly from general practitioners (GPs, 39%), and was more likely to have occurred for those on medication (AOR 7.08; 95% confidence interval (CI) 3.71, 13.50) or with schizophrenia or other psychotic disorders (AOR 4.20; 95% CI 1.46, 12.11). At release, continuity of care arrangements and health information transfer to GPs were usually linked to formal pre-release healthcare linkage programs. Outside these programs, only 20% of records had evidence of such continuity of care at release, with the odds higher for those on medication (AOR 8.28; 95% CI 1.85, 37.04) and lower for women with problematic substance misuse (AOR 0.32; 95% CI 0.14, 0.72). Few requests for information were received after individuals had been released from custody (5/212; two from GPs). Conclusion Increased health information transfer to community HCPs is needed to improve continuity of care between prison and community. What is known about the topic? Many women in prison have high health needs. Health and well being are at further risk at the time of transition between prison and community. What does this paper add? This study provides evidence that outside formal programs, which are currently available only for a minority of women, continuity of care arrangements and transfer of health information do not usually occur when women leave prison. Pragmatic choices about continuity of care at the interface between prison and community may have been made, particularly focusing on medication continuity. Barriers to continuity of care and ways forward are suggested. What are the implications for practitioners? Siloing of health care delivered within prison health services through lack of continuity of care at release is wasteful, both in terms of healthcare costs and lost opportunities to achieve health outcomes in a vulnerable population with high health needs. There is need for an increased focus on continuity of care between prison and community health services, HCP support and training and expansion of pre-release planning and healthcare linkage programs to assist larger numbers of women in prison.

Inequalities in pediatric avoidable hospitalizations between Aboriginal and non-Aboriginal children in Australia: a population data linkage study.

BACKGROUND: Australian Aboriginal children experience a disproportionate burden of social and health disadvantage. Avoidable hospitalizations present a potentially modifiable health gap that can be targeted and monitored using population data. This study quantifies inequalities in pediatric avoidable hospitalizations between Australian Aboriginal and non-Aboriginal children. METHODS: This statewide population-based cohort study included 1 121 440 children born in New South Wales, Australia, between 1 July 2000 and 31 December 2012, including 35 609 Aboriginal children. Using linked hospital data from 1 July 2000 to 31 December 2013, we identified pediatric avoidable, ambulatory care sensitive and non-avoidable hospitalization rates for Aboriginal and non-Aboriginal children. Absolute and relative inequalities between Aboriginal and non-Aboriginal children were measured as rate differences and rate ratios, respectively. Individual-level covariates included age, sex, low birth weight and/or prematurity, and private health insurance/patient status. Area-level covariates included remoteness of residence and area socioeconomic disadvantage. RESULTS: There were 365 386 potentially avoidable hospitalizations observed over the study period, most commonly for respiratory and infectious conditions; Aboriginal children were admitted more frequently for all conditions. Avoidable hospitalization rates were 90.1/1000 person-years (95 % CI, 88.9-91.4) in Aboriginal children and 44.9/1000 person-years (44.8-45.1) in non-Aboriginal children (age and sex adjusted rate ratio = 1.7 (1.7-1.7)). Rate differences and rate ratios declined with age from 94/1000 person-years and 1.9, respectively, for children aged <2 years to 5/1000 person-years and 1.8, respectively, for ages 12- < 14 years. Findings were similar for the subset of ambulatory care sensitive hospitalizations, but in contrast, non-avoidable hospitalization rates were almost identical in Aboriginal (10.1/1000 person-years, (9.6-10.5)) and non-Aboriginal children (9.6/1000 person-years (9.6-9.7)). CONCLUSIONS: We observed substantial inequalities in avoidable hospitalizations between Aboriginal and non-Aboriginal children regardless of where they lived, particularly among young children. Policy measures that reduce inequities in the circumstances in which children grow and develop, and improved access to early intervention in primary care, have potential to narrow this gap.

Comparing symptomatic and functional outcomes over 5 years in two nonclinical cohorts characterized by binge eating with and without objectively large episodes.

OBJECTIVE: The aim was to compare symptomatic and functional outcomes over 5 years in women with regular subjective (SBEs), objective (OBEs), and no regular binge eating episodes. METHOD: Data were derived from two cohorts of 330 women with high levels of eating disorders symptoms followed over 5 years. Three groups were formed: (a) regular SBEs but no regular OBEs (N = 68), (b) regular OBEs with or without regular SBEs (N = 154), and (c) with no regular binge eating episodes (N = 108). RESULTS: At baseline, the groups did not differ significantly in restraint scores and quality of life. People in the OBE group scored higher than those in the SBE group in body mass index (BMI). Those who had no regular binge eating had lower global Eating Disorder Examination Questionnaire (EDE-Q) and weight and shape concern scores than those with regular SBEs, and lower eating concern scores than either binge eating groups. Across the follow-up, there were no significant effects of being in either binge eating or the nonbinge eating group on the rates of change in BMI, general psychological distress, quality of life, or EDE-Q scores with the exception that OBE group had a significantly different rate of change in eating concern and psychological distress compared to the group without regular binge eating. DISCUSSION: Individuals that report regular SBEs without regular OBEs represent a group with similar mental hardship and outcomes to those with regular OBEs. The findings support inclusion of regular SBEs in criteria for eating disorder diagnostic categories characterized by recurrent binge eating.

Recruiting general practitioners for surveys: reflections on the difficulties and some lessons learned.

Surveys of GPs are essential to facilitate future planning and delivery of health services. However, recruitment of GPs into research has been disappointing with response rates declining over recent years. This study identified factors that facilitated or hampered GP recruitment in a recent survey of Australian GPs where a range of strategies were used to improve recruitment following poor initial responses. GP response rates for different stages of the survey were examined and compared with reasons GPs and leaders of university research networks cited for non-participation. Poor initial response rates were improved by including a questionnaire in the mail-out, changing the mail-out source from an unknown research team to locally known network leaders, approaching a group of GPs known to have research and training interests, and offering financial compensation. Response rates increased from below 1% for the first wave to 14.5% in the final wave. Using a known and trusted network of professionals to endorse the survey combined with an explicit compensation payment significantly enhanced GP response rates. To obtain response rates for surveys of GPs that are high enough to sustain external validity requires an approach that persuades GPs and their gatekeepers that it is worth their time to participate.

Disparities in revascularization rates after acute myocardial infarction between aboriginal and non-aboriginal people in Australia.

BACKGROUND: This study examined revascularization rates after acute myocardial infarction (AMI) for Aboriginal and non-Aboriginal patients sequentially controlling for admitting hospital and risk factors. METHODS AND RESULTS: Hospital data from the state of New South Wales, Australia (July 2000 through December 2008) were linked to mortality data (July 2000 through December 2009). The study sample were all people aged 25 to 84 years admitted to public hospitals with a diagnosis of AMI (n=59 282). Single level and multilevel Cox regression was used to estimate rates of revascularization within 30 days of admission. A third (32.9%) of Aboriginal AMI patients had a revascularization within 30 days compared with 39.7% non-Aboriginal patients. Aboriginal patients had a revascularization rate 37% lower than non-Aboriginal patients of the same age, sex, year of admission, and AMI type (adjusted hazard ratio, 0.63; 95% confidence interval, 0.57-0.70). Within the same hospital, however, Aboriginal patients had a revascularization rate 18% lower (adjusted hazard ratio, 0.82; 95% confidence interval, 0.74-0.91). Accounting for comorbidities, substance use and private health insurance further explained the disparity (adjusted hazard ratio, 0.96; 95% confidence interval, 0.87-1.07). Hospitals varied markedly in procedure rates, and this variation was associated with hospital size, remoteness, and catheterization laboratory facilities. CONCLUSIONS: Aboriginal Australians were less likely to have revascularization procedures after AMI than non-Aboriginal Australians, and this was largely explained by lower revascularization rates at the hospital of first admission for all patients admitted to smaller regional and rural hospitals, a higher comorbidity burden for Aboriginal people, and to a lesser extent a lower rate of private health insurance among Aboriginal patients.

Paediatric hospitalisations for lower respiratory tract infections in Mount Isa.

OBJECTIVE: To compare the rates of acute lower respiratory tract infection (ALRI) among children in north-west Queensland, according to age, sex and Indigenous status. DESIGN, SETTING AND PATIENTS: Retrospective chart review of hospitalisations at Mt Isa Base Hospital, Queensland, from 1 January 2007 to 31 December 2011 among children < 15 years of age. MAIN OUTCOME MEASURES: Rates of admission for bronchiolitis, pneumonia and bronchiectasis, calculated using population data from the Australian Bureau of Statistics. RESULTS: There were 356 admissions for ALRI, involving 276 children. Of the 162 children aged < 12 months old, 125 (77.2%) were Indigenous. Hospitalisations increased over the study period, and rates were significantly higher among Indigenous children compared with non-indigenous children (24.1 v 4.5 per 1000 population per year). There were 195 admissions of 164 children with pneumonia, 126 (76.8%) of whom were Indigenous. Annual rates for Indigenous children were higher than for non-Indigenous children (13.7 v 2.3 per 1000 population). Multiple admissions were common. One-third presented with gastrointestinal symptoms and signs. Pneumococcal disease persisted despite vaccination. There were 160 hospitalisations for bronchiolitis; 114 occasions (71.3%) involved Indigenous children. Seven children had bronchiectasis; all were Indigenous. CONCLUSION: Rates of ALRI in Mt Isa are comparable to those in the Northern Territory, which is reported to have rates of pneumonia among the highest in the world for children < 12 months of age. Multiple admissions are common, suggesting an even higher rate of bronchiectasis. Pneumonia may present as gastrointestinal disease, and invasive pneumococcal infection must be suspected despite vaccination.

Mental health literacy of resettled Iraqi refugees in Australia: knowledge about posttraumatic stress disorder and beliefs about helpfulness of interventions.

BACKGROUND: Resettled refugees are a particularly vulnerable group. They have very high levels of mental health problems, in particular, trauma-related disorders, but very low uptake of mental health care. Evidence suggests that poor "mental health literacy", namely, poor knowledge and understanding of the nature and treatment of mental health problems is a major factor in low or inappropriate treatment-seeking among individuals with mental health problems. This study used a culturally adapted Mental Health Literacy Survey method to determine knowledge of, and beliefs about, helpfulness of treatment interventions and providers for posttraumatic stress disorder (PTSD) amongst resettled Iraqi refugees. METHODS: 225 resettled Iraqi refugees in Western Sydney attending the Adult Migrant English Program (AMEP), federally funded English language tuition, were surveyed. A vignette of a fictional character meeting diagnostic criteria for PTSD was presented followed by the Mental Health Literacy Survey. PTSD symptomology was measured using the Harvard Trauma Questionnaire part IV (HTQ part IV), with Kessler Psychological Distress Scale (K10) used to measure levels of general psychological distress. RESULTS: Only 14.2% of participants labelled the problem as PTSD, with "a problem with fear" being the modal response (41.8%). A total of 84.9% respondents indicated that seeing a psychiatrist would be helpful, followed by reading the Koran or Bible selected by 79.2% of those surveyed. There was some variation in problem recognition and helpfulness of treatment, most notably influenced by the length of resettlement in Australia of the respondents. CONCLUSIONS: These findings have important implications for the design and implementation of mental health promotion and treatment programs for resettled refugees and those who work with them.

Prevalence and risk factors of type 2 diabetes in older Vietnam-born Australians.

Vietnamese immigrants in Australia represent the second largest Vietnamese community in developed countries, following the United States. However, limited information is available about prevalence of type 2 diabetes (T2D) and the relative roles of socio-demographic characteristics, lifestyle factors, and Vietnamese ethnicity per se in this population. This study investigated the prevalence of T2D and its risk factors in older Vietnam-born Australians, in comparison to native-born Australians. The study used baseline questionnaire data from 787 Vietnam- and 196,866 Australia-born individuals (≥45 years), who participated in the 45 and Up Study, which is Australia's largest population-based cohort study. Country of birth specific prevalence of T2D and its risk factors were age-standardised to the 2006 Australian population (≥45 years). Multivariable logistic regression models were built for each group to assess the relationship between T2D and socio-demographic characteristics, family history of diabetes, lifestyle factors and health status. Compared to Australia-born counterparts, Vietnam-born individuals had significantly (p < 0.001) higher age-standardised prevalence of T2D (14.7 vs 7.4 %) and significantly (p < 0.001) lower levels of vegetable consumption (≥5 serves/day, 19.4 vs 33.5 %), physical activity (≥5 sessions/week, 68.7 vs 78.5 %) and overweight and obesity (body mass index ≥25 kg/m(2), 21.5 vs 62.7 %). The increased risk of T2D associated with a family history of diabetes for Vietnam-born people [adjusted odds ratio (OR) 7.14, 95 % CI 4.15-12.28] was almost double that for Australia-born people (OR 3.77, 95 % CI 3.63-3.90). The patterns of association between T2D and other factors were similar between the two groups. The findings suggest a genetic predisposition to T2D in people of Vietnamese ethnicity. Reducing lifestyle risk factors for diabetes and better management of diabetes are priorities for Vietnam-born populations.

Disparities in cataract surgery between Aboriginal and non-Aboriginal people in New South Wales, Australia.

BACKGROUND: To investigate variation in rates of cataract surgery in New South Wales, Australia by area of residence for Aboriginal and non-Aboriginal adults. DESIGN: Observational data linkage study of hospital admissions. PARTICIPANTS: Two hundred eighty-nine thousand six hundred forty-six New South Wales residents aged 30 years and over admitted to New South Wales hospitals for 444,551 cataract surgery procedures between 2001 and 2008. METHODS: Analysis of linked routinely collected hospital data using direct standardization and multilevel negative binomial regression models accounting for clustering of individuals within Statistical Local Areas. MAIN OUTCOME MEASURES: Age-standardized cataract surgery rates and adjusted rate ratios. RESULTS: Aboriginal people had lower rates of cataract procedures than non-Aboriginal people of the same age and sex, living in the same Statistical Local Area (adjusted rate ratio 0.71, 95% confidence interval 0.68-0.75). There was significant variation in cataract surgery rates across Statistical Local Areas for both Aboriginal and non-Aboriginal people, with the disparity greater in major cities and less disadvantaged areas. Rates of surgery were lower for Aboriginal than non-Aboriginal people in most Statistical Local Areas, but in a few, the rates were similar or higher for Aboriginal people. CONCLUSIONS: Aboriginal people in New South Wales received less cataract surgery than non-Aboriginal people, despite evidence of higher cataract rates. This disparity was greatest in urban and wealthier areas. Higher rates of surgery for Aboriginal people observed in some specific locations are likely to reflect the availability of public ophthalmology services, targeted services for Aboriginal people and higher demand for surgery in these populations.

Readmission destination following cardiac surgery and its association with mortality outcomes: a population-based retrospective study.

Background: It is unclear how pre-surgery transfer relates to readmission destination among patients undergoing cardiac surgery and whether readmission to a hospital other than the operating hospital is associated with increased mortality. Methods: We analysed linked hospital and death records for residents of New South Wales, Australia, aged ≥18 years who had an emergency readmission within 30 days following coronary artery bypass graft (CABG) or surgical aortic valve replacement (SAVR) in 2003-2022. Mixed-effect multi-level modelling was used to evaluate associations of readmission destination with 30-day mortality, overall and stratified by pre-surgery transfer. Findings: Of 102,540 patients undergoing cardiac surgery (isolated CABG = 63,000, SAVR = 27,482, combined = 12,058), 28.7% (n = 29,398) had pre-surgery transfer, while the 30-day readmission rate was 14.7% (n = 14,708). During readmission, 35.7% (3499/9795) of those without pre-surgery transfer and 12.0% (590/4913) of those with pre-surgery transfer returned to the operating hospital. Among readmitted patients, 30-day mortality did not differ significantly for those who were readmitted to a non-index hospital, both overall (adjusted odds ratio [aOR] = 1.03 95% CI 0.75-1.41), and in analyses stratified by pre-surgery transfer (no transfer: aOR = 1.07, 95% CI 0.75-1.52; transfer: aOR = 0.88, 95% CI 0.45-1.72). Among patients who had pre-surgery transfer, 30-day mortality was similar among patients who were readmitted to the index operating hospital (reference), the initial admitting hospital (aOR = 1.00, 95% CI 0.50-2.00) or a third, different, hospital (aOR = 0.70, 95% CI 0.33-1.48). Interpretation: Although many Australian patients who are readmitted following cardiac surgery are readmitted to hospitals different to the operating or initial admitting hospital, such readmissions are not associated with increased mortality. Funding: This study was funded by a National Health and Medical Research Foundation of Australia (NHMRC) Project Grant (#1162833).

Enriching Data Science and Health Care Education: Application and Impact of Synthetic Data Sets Through the Health Gym Project.

Large-scale medical data sets are vital for hands-on education in health data science but are often inaccessible due to privacy concerns. Addressing this gap, we developed the Health Gym project, a free and open-source platform designed to generate synthetic health data sets applicable to various areas of data science education, including machine learning, data visualization, and traditional statistical models. Initially, we generated 3 synthetic data sets for sepsis, acute hypotension, and antiretroviral therapy for HIV infection. This paper discusses the educational applications of Health Gym's synthetic data sets. We illustrate this through their use in postgraduate health data science courses delivered by the University of New South Wales, Australia, and a Datathon event, involving academics, students, clinicians, and local health district professionals. We also include adaptable worked examples using our synthetic data sets, designed to enrich hands-on tutorial and workshop experiences. Although we highlight the potential of these data sets in advancing data science education and health care artificial intelligence, we also emphasize the need for continued research into the inherent limitations of synthetic data.

Overcoming silos in health care systems through meso-level organisations - a case study of health reforms in New South Wales, Australia.

Fragmented care delivery is a barrier to improving health system performance worldwide. Investment in meso-level organisations is a potential strategy to improve health system integration, however, its effectiveness remains unclear. In this paper, we provide an overview of key international and Australian integrated care policies. We then describe Collaborative Commissioning - a novel health reform policy to integrate primary and hospital care sectors in New South Wales (NSW), Australia and provide a case study of a model focussed on older person's care. The policy is theorised to achieve greater integration through improved governance (local stakeholders identifying as part of one health system), service delivery (communities perceive new services as preferable to status quo) and incentives (efficiency gains are reinvested locally with progressively higher value care achieved). If effectively implemented at scale, Collaborative Commissioning has potential to improve health system performance in Australia and will be of relevance to similar reform initiatives in other countries.

Association between parity and breastfeeding with maternal high blood pressure.

OBJECTIVE: The objective of this study was to determine how parity and breastfeeding were associated with maternal high blood pressure, and how age modifies this association. STUDY DESIGN: Baseline data for 74,785 women were sourced from the 45 and Up Study, Australia. These women were 45 years of age or older, had an intact uterus, and had not been diagnosed with high blood pressure before pregnancy. Odds ratios (ORs) and 99% confidence intervals (CIs) for the association between giving birth, breastfeeding, lifetime breastfeeding duration, and average breastfeeding per child with high blood pressure were estimated using logistic regression. RESULTS: The combination of parity and breastfeeding was associated with lower odds of having high blood pressure (adjusted OR, 0.89; 99% CI, 0.82-0.97; P < .001), compared with nulliparous women, whereas there was no significant difference between mothers who did not breastfeed and nulliparous women (adjusted OR, 1.06; 99% CI, 0.95-1.18; P = .20). Women who breastfed for longer than 6 months in their lifetime, or greater than 3 months per child, on average, had significantly lower odds of having high blood pressure when compared with parous women who never breastfed. The odds were lower with longer breastfeeding durations and were no longer significant in the majority of women over the age of 64 years. CONCLUSION: Women should be encouraged to breastfeed for as long as possible and a woman's breastfeeding history should be taken into account when assessing her likelihood of high blood pressure in later life.