COMPASS Seminars 2024

You can also join us for these seminars via Zoom, and check out recordings of the whole series for 2024 on our YouTube channel.  

23 July 2024

Eileen Li: Linkage Errors in the IDI

Within the Integrated Data Infrastructure (IDI), individual records undergo probabilistic linkage and are subject to linkage errors due to both internal and external factors. In many instances, research and analysis using IDI data make the assumption of perfect linkage without considering the potential impact of linkage errors. Our primary objective is to identify and characterise these errors, namely false links and missed links. Once linkage errors have been identified, our subsequent goal is to implement adjustments to mitigate their influence on modelling results. A practical demonstration of how linkage errors can affect a simple regression model will be given.
 

Mohammad Shahbaz: Time and cost of linking administrative datasets for outcomes assessment in a follow-up study of participants from two randomised trials

For the follow-up of participants in randomised trials, data linkage is thought to be a cost-effective method for assessing outcomes. However, researchers often encounter technical and budgetary challenges. Data requests often require a significant amount of information from researchers, and can take several years to process. Our study aimed to determine the feasibility, direct costs and the total time required to access administrative datasets for assessment of outcomes in a follow up study of two randomised trials. Additionally, we compared the estimated costs and time required for data linkage with those for obtaining self-reported questionnaires and conducting in-person assessments.

Alexia Searchfield – Childhood academic performance: Does low birthweight for gestational age influence school performance?

Every year, 10% of all infants in New Zealand are born with a weight below that expected given their gestational age. These ‘small for gestational age’ infants are at a significantly higher risk of childhood mortality and morbidity. There have been numerous studies linking SGA status to adverse health outcomes such as diabetes and renal disease in adulthood. SGA has also been demonstrated to stunt brain development. What is less known, is whether the impairments to brain development present as poor academic achievement in later childhood. We used data collected for the Auckland Birthweight Collaborative (ABC) longitudinal study to explore the association between term-SGA status and academic achievement in Primary and Intermediate school (at 7 and 11 years of age).

Fares AlGhareeb
21 May 2024

Recently, dimensional models of adversity have argued that traditional approaches in developmental psychopathology, such as cumulative risk, obscure pathways between distinct types of early experience and developmental disadvantage.

Using GUiNZ data (N = 4,158), the current research utilises an integrated approach to examine differential associations among multiple adversity dimensions and child emotional and behavioural problems at age 8 years, through inhibitory control measured at age 4.5 years.

Theoretical, clinical, and policy implications will be discussed.

Fares AlGhareeb is a current Masters candidate in the School of Psychology, investigating dimensional views of adversity and mental health using GUiNZ data. He has a background in Economics, having studied at the University of California Los Angeles, and is interested in developmental psychopathology, longitudinal design, and transdiagnostic research.

Sarah Hendrica Bickerton
23 April 2024

Aotearoa New Zealand’s aerospace sector is growing rapidly, but sustainability considerations are often overlooked. From transdisciplinary research using surveys and interviews with key stakeholder groups, this seminar will cover the preliminary themes; namely that the sector largely deprioritises environmental sustainability and compliance with Te Tiriti o Waitangi, in favour of economic growth. Actors are not incentivised to consider sustainability. While environmental concerns are acknowledged, they are often viewed as technical challenges to overcome by individual companies, rather than global systemic issues that require a collaborative approach. Moreover, the Government's role as a customer, investor, and regulator creates a sustainability leadership vacuum. The results highlight the need for a new approach to balance growth with genuine sustainable development principles using innovative governance models.

Sarah Hendrica Bickerton is a lecturer in Public Policy here at the University of Auckland, Waipapa Taumata Rau. Before that, she was also a Postdoctoral Research Fellow at the Public Policy Institute here, and she has also been a Research & Policy Lead at an NGO working in digital equity & tech policy. In 2020 she completed her PhD in Public Policy at Victoria University of Wellington, Te Herenga Waka, studying online political participation as part of her wider interest in the intersection of technology and the social & political. Her background is as a Sociologist (though her first degree was in Astrophysics), having studied previously at both the University of Illinois at Chicago and the University of Canterbury, Te Whare Wānanga o Waitaha.

Francesca Pigatto
9 April 2024

There is a growing interest in identifying the risk factors for adolescent depression, as the prevalence of this condition has increased rapidly over the last decade, and it often persists into adulthood with the association of a range of adverse outcomes.

This study included 4,173 young people from GUiNZ who had data for our outcome of interest, self-reported depression symptoms at 12 years, using the Centre for Epidemiological Studies Depression Scale for Children (CESD-10) short-form questionnaire, and prenatal maternal depression. Cumulative Risk (CR) score was used to investigate the cumulative effect of multiple risk factors on depression symptoms in young people. The perinatal CR score was created by combining prenatal and postnatal risk factors that reached statistically significant associations with the outcome, while early childhood CR included the statistically significant risk factors derived from the 4.5 and 8 years data collection waves. Each CR score included three categories of risk: low CR score (exposure to at most one risk factor), medium CR (two or three risk factors), and high CR (four or more risk factors). The association between CR score and depression score at 12 years was adjusted for covariates.

About one-third of young people were exposed to a low CR score in perinatal or early childhood. The prevalence of high CR scores in perinatal and early childhood was 12.0% and 6.8%, respectively. For perinatal risk factors, young people exposed to medium CR scores had an increase in the depression score by 0.45 units (p-value <0.01), and those exposed to high CR had an increase of 1.64 units (p-value <0.001). For early childhood risk factors, exposure to middle CR score was associated with a one-unit increase in depression score (p-value <0.001), while exposure to high CR score was associated with a-2.2-unit increase in depression score (p-value <0.001).

In the adjusted analysis, exposure to medium and high CR scores, either perinatal or early childhood, was still associated with depression scores. Being female was associated with higher depression scores while having a mother with a bachelor’s or higher level of education was a protective factor for depression symptoms.

Our findings showed that using CR scores is a valuable approach to identifying the subgroup of young people that are most at risk of depression symptoms, which could help inform interventions that address a range of risk factors.

Francesca Pigatto is doing a PhD on the environmental risk factors and genetic markers for depression symptoms in young people enrolled in GUiNZ. She has a background in genetics and an interest in public health.

Paula Araya-Herrera
26 March 2024

Research on outcomes for children with autism spectrum disorder (ASD) who have gross motor developmental delay is increasing, although there is still a lack of thorough studies. This longitudinal cohort research examines the trajectories of gross motor development in 6,359 children, utilising data from the Growing Up in New Zealand study, with a focus on 173 children with ASD diagnoses or concerns. Early interventions are crucial for treating gross motor difficulties in children with ASD, providing insights into potential paths for long-term developmental assistance.

Paula Araya-Herrera is a physiotherapist and researcher in the Applied Behaviour Analysis programme at the School of Psychology. Her doctoral research involves exploring the associations between gross motor and other developmental areas for autistic children, and their implications for practitioners. She uses quantitative methodologies to examine these effects from population, evidence and practitioner perspectives.

Stephanie D'Souza
12 March 2024

There is increasing interest in the long-term health implications of participation in contact and collision sports, particularly the risk of neurodegenerative diseases. Recent research has capitalised on large-scale administrative health data to examine health outcomes in contact sport athletes, though evidence is limited on outcomes associated with participation in rugby union. The Kumanu Tāngata study is a retrospective cohort study involving the linkage of first-class New Zealand male rugby union players to the Integrated Data Infrastructure (IDI), a comprehensive de-identified whole-population administrative research database. Rugby players (N = 13,227) will be compared to a general population comparison group (N = 2,438,484) on several mortality and morbidity outcomes. The project’s strengths and limitations for understanding the long-term health impacts of contact sports will be discussed, and initial findings on neurodegenerative disease health outcomes will be presented.

Stephanie D'Souza is Deputy Director of COMPASS Research Centre and Senior Lecturer in the School of Social Sciences. Her research involves the application of quantitative methodologies to examine societal, health, and wellbeing challenges across the lifespan, employing survey and administrative data.

Barry Milne
Tuesday 27 February 2024

One of the most important questions to ponder when considering a policy change or intervention is, "Will it work?"

You could try it out in the real world and see, but that is expensive. As an alternative, simulations can model the impact of a policy change or intervention on a 'virtual' world.

In this presentation I describe 'microsimulation', which simulates individual units, e.g. people, to model the impacts of policies. I describe some of the uses to which microsimulation has been put internationally and in Aotearoa New Zealand, and some of the models we have developed at COMPASS – focusing on recent modelling of interventions undertaken as part of the National Science Challenge: 'A Better Start'.

Barry Milne is Director of COMPASS Research Centre. He has a Masters degree in psychology from the University of Otago and a PhD in Psychiatric Epidemiology from Kings College London. His main interests are in life-course research, survey research, and the use of administrative data to answer policy and research questions.