Racism, early psychosis, and institutional contact: A qualitative study of Indigenous experiences.

BACKGROUND: There is evidence of Indigenous and ethnic minority inequities in the incidence and outcomes of early psychosis. Racism has been implicated as having an important role. AIM: To use Indigenous experiences to develop a more detailed understanding of how racism operates to impact early psychosis outcomes. METHODS: Critical Race Theory informed the methodology used. Twenty-three Indigenous participants participated in four family focus group interviews and thirteen individual interviews, comprising of 9 Maori youth with early psychosis, 10 family members and 4 Maori mental health professionals. An analysis of the data was undertaken using deductive structural coding to identify descriptions of racism, followed by inductive descriptive and pattern coding. RESULTS: Participant experiences revealed how racism operates as a socio-cultural phenomenon that interacts with institutional policy and culture across systems pertaining to social responsiveness, risk discourse, and mental health service structures. This is described across three major themes: 1) selective responses based on racial stereotypes, 2) race related risk assessment bias and 3) institutional racism in the mental health workforce. The impacts of racism were reported as inaction in the face of social need, increased use of coercive practices and an under resourced Indigenous mental health workforce. CONCLUSION: The study illustrated the inter-related nature of interpersonal, institutional and structural racism with examples of interpersonal racism in the form of negative stereotypes interacting with organizational, socio-cultural and political priorities. These findings indicate that organizational cultures may differentially impact Indigenous and minority people and that social responsiveness, risk discourse and the distribution of workforce expenditure are important targets for anti-racism efforts.

Mortality after release from incarceration in New Zealand by gender: A national record linkage study.

Background: People who enter and leave places of incarceration experience considerable health inequities and are at increased risk of premature death compared to the general population. Causes of premature death in this population vary markedly between countries and so country-specific information is needed. Additionally, there is a lack of large population-based studies which can disaggregate mortality risk based on person and incarceration factors. This study is the first examination of mortality in the period following release from incarceration in New Zealand. Methods: We linked deidentified administrative data on incarceration and release between 1 January 1998 and 31 December 2016 with national mortality data for the same period to examine mortality after release in those who had been incarcerated for at least 1 day. Age standardised mortality rates and mortality ratios compared to the general New Zealand population were calculated separately for men and women, for releases from remand compared with prison, and by cause of death and time since release. Results: 90,195 individuals (13% women, 49% Maori) were followed up for 9.4 years after release from incarceration, with 4,764 deaths over the follow-up period. The overall standardised mortality ratio was 3.3 (95% CI 3.2, 3.4) compared to the general population, and higher for women (3.8) than men (2.7). The most common causes of death were cardiovascular disease, cancer and suicide. Rates of death were similar following release from remand versus prison, however suicide rates were highest following release from remand. Regardless of the type of incarceration, mortality was highest in the first month after release. Conclusion: Experience of incarceration in New Zealand is associated with high rates of mortality from both chronic conditions and external causes. There are urgent policy imperatives to recognise and actively address the increased health and mortality risks faced by people released from New Zealand prisons.

Social impacts and costs of schizophrenia: a national cohort study using New Zealand linked administrative data.

AIM: To identify a national population of individuals living with schizophrenia in New Zealand, and to examine health, social support, justice, economic outcomes and estimated government costs compared to a matched comparison group. METHODS: Data were sourced from the Integrated Data Infrastructure. Individuals with a schizophrenia diagnosis in public hospital discharge or specialist secondary mental health service data, aged 18 to 64 and living in New Zealand were included in the schizophrenia population. Propensity score matching was used to select a comparison group of individuals without schizophrenia from the New Zealand resident population and compare outcomes and costs. RESULTS: In 2015 there were 18,096 people living with schizophrenia in New Zealand, a prevalence of 6.7 per 1,000 people. Compared to the matched comparison population, individuals with schizophrenia had higher hospitalisation rates for mental (OR=52.80) and physical (OR=1.18) health conditions. They were more likely to receive social welfare benefits (OR=17.64), less likely to be employed (OR=0.11) and had lower income ($26,226 lower). Per-person government costs were higher for the schizophrenia group across all domains, particularly health ($14,847 higher) and social support ($11,823 higher). CONCLUSION: Schizophrenia is associated with a range of adverse health, social and economic outcomes and considerably higher government costs compared to the general population.

IDI trends in antidepressant dispensing to New Zealand children and young people between 2007/08 and 2015/16.

AIM: To examine trends in antidepressant dispensing to childred and young people in New Zealand aged 1-24 years between 2007/08 and 2015/16 using the national Integrated Data Infrastructure (IDI), and to determine whether these trends vary by age, sex, ethnicity and socioeconomic deprivation. METHODS: In a novel endeavour, data on antidepressant dispensing, age, sex, ethnicity and socioeconomic status were sourced from the IDI, a linked individual-level database containing New Zealand government and survey microdata. RESULTS: The total rate of dispensing of antidepressants to young people increased by 44% from 1,870 per 100,000 in 2007/08 to 2,694 per 100,000 in 2015/16. Increases were larger for the 13-17 age group than the 1-12- or 18-24-year age groups. New Zealand European/Other ethnicities had the highest dispensing rates (3,623 out of every 100,000 people received an antidepressant in 2015/16), followed by Maori (1,980/100,000), Asian (902/100,000) and Pasifika (819/100,000) had the lowest. Dispensing rates increased with increasing deprivation, except in the most deprived quintile, where rates were lower than all other quintiles. CONCLUSION: This study demonstrates the value of utilising IDI data for health research, while providing directions for future use, including further linkage of IDI datasets. Overall there was a trend towards an increase in the use of antidepressants across all age, sex and ethnic groups, but notable variation in dispensing between different ethnic and socioeconomic groups. Despite our inability to determine the clinical rationale for increased dispensing of antidepressants, the available data highlight some potentially significant improvements as well as disparities in healthcare.

How universal are universal preschool health checks? An observational study using routine data from New Zealand's B4 School Check.

OBJECTIVES: We aimed to estimate how many children were attending a universal preschool health screen and to identify characteristics associated with non-participation. DESIGN: Analysis of population-level linked administrative data. PARTICIPANTS: Children were considered eligible for a B4 School Check for a given year if:(1) they were ever resident in New Zealand (NZ),(2) lived in NZ for at least 6 months during the reference year, (3) were alive at the end of the reference year, (4) either appeared in any hospital (including emergency) admissions, community pharmaceutical dispensing or general practitioner enrolment datasets during the reference year or (5) had a registered birth in NZ. We analysed 252 273 records over 4 years, from 1 July 2011 to 30 June 2015. RESULTS: We found that participation rates varied for each component of the B4 School Check (in 2014/2015 91.8% for vision and hearing tests (VHTs), 87.2% for nurse checks (including height, weight, oral health, Strengths and Difficulties Questionnaire [SDQ] and parental evaluation of development status) and 62.1% for SDQ - Teacher [SDQ-T]), but participation rates for all components increased over time. Maori and Pacific children were less likely to complete the checks than non-Maori and non-Pacific children (for VHTs: Maori: OR=0.60[95% CI 0.61 to 0.58], Pacific: OR=0.58[95% CI 0.60 to 0.56], for nurse checks: Maori: OR=0.63[95% CI 0.64 to 0.61], Pacific: OR=0.67[95% CI 0.69 to0.65] and for SDQ-T: Maori: OR=0.76[95% CI 0.78 to 0.75], Pacific: OR=0.37[95% CI 0.38 to 0.36]). Children from socioeconomically deprived areas, with younger mothers, from rented homes, residing in larger households, with worse health status and with higher rates of residential mobility were less likely to participate in the B4 School Check than other children. CONCLUSION: The patterns of non-participation suggest a reinforcing of existing disparities, whereby the children most in need are not getting the services they potentially require. There needs to be an increased effort by public health organisations, community and whanau/family to ensure that all children are tested and screened.

Child obesity prevalence across communities in New Zealand: 2010-2016.

OBJECTIVE: To assess community-level differences in four-year-old obesity prevalence in New Zealand (NZ), trends over time, and the extent to which differences can be explained by ethnicity, deprivation and urbanicity. METHODS: Obesity measures from the Ministry of Health's B4 School Check were available for 72-92% of NZ four-year-olds for fiscal years 2010/11-2015/16. Ethnicity, deprivation and urbanicity data for the 78 communities were obtained by linking to administrative records. Growth models were used to examine variability in obesity levels and trends over time, and the extent to which ethnicity, deprivation and urbanicity contributed to differences between communities. RESULTS: There were large variations in obesity across communities (range 8.4% to 28.8%). A decline in the prevalence of childhood obesity was observed in most (48 of 78) communities from 2010/11 to 2015/16 (average change=0.2%, range=-2.0% to 1.9%). Around 50% of the variance in obesity between territorial authorities could be explained by differences in socioeconomic deprivation and ethnic composition. CONCLUSIONS: Child obesity varies between NZ communities, but most territorial authorities have experienced a decrease in obesity over the period 2010/11-2015/16. Implications for public health: Addressing deprivation and ethnic inequalities in obesity could substantially reduce community-level differences in obesity in NZ.

Burden of psychiatric disorder in young adulthood and life outcomes at age 30.

BACKGROUND: Psychiatric disorders are common during young adulthood and comorbidity is frequent. Individual psychiatric disorders have been shown to be associated with negative economic and educational outcomes, but few studies have addressed the relationship between the total extent of psychiatric disorder and life outcomes. AIMS: To examine whether the extent of common psychiatric disorder between ages 18 and 25 is associated with negative economic and educational outcomes at age 30, before and after controlling for confounding factors. METHOD: Participants were 987 individuals from the Christchurch Health and Development Study, a longitudinal study of a birth cohort of individuals born in Christchurch, New Zealand, in 1977 and followed to age 30. Linear and logistic regression models were used to examine the associations between psychiatric disorder from age 18 to 25 and workforce participation, income and living standards, and educational achievement at age 30, before and after adjustment for confounding factors. RESULTS: There were significant associations between the extent of psychiatric disorder reported between ages 18 and 25 and all of the outcome measures (all P<0.05). After adjustment for confounding factors, the associations between psychiatric disorder and workforce participation, income and living standards remained significant (all P<0.05), but the associations between psychiatric disorder and educational achievement were not significant (all P>0.10). CONCLUSIONS: After due allowance had been made for a range of confounding factors, psychiatric disorder between ages 18 and 25 was associated with reduced workforce participation, lower income and lower economic living standards at age 30.