Publications by authors named "Dm Lawrence"

Objective: To compare rates of participation in the National Bowel Cancer Screening Program (NBCSP) and follow-up for people with severe mental illness with those for people without severe mental illness or not prescribed antidepressants.

Study Design: Retrospective cohort study; analysis of de-identified linked NBCSP, Pharmaceutical Benefits Scheme (PBS), and Medicare Benefits Schedule (MBS) data.

Setting: Australia, 2006-2019.

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Background: Trio exome sequencing can be used to investigate congenital abnormalities identified on pregnancy ultrasound, but its use in an Australian context has not been assessed.

Aims: Assess clinical outcomes and changes in management after expedited genomic testing in the prenatal period to guide the development of a model for widespread implementation.

Materials And Methods: Forty-three prospective referrals for whole exome sequencing, including 40 trios (parents and pregnancy), two singletons and one duo were assessed in a tertiary hospital setting with access to a state-wide pathology laboratory.

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Limiting global warming to 2 °C requires urgent action on land-based mitigation. This study evaluates the biogeochemical and biogeophysical implications of two alternative land-based mitigation scenarios that aim to achieve the same radiative forcing. One scenario is primarily driven by bioenergy expansion (SSP226Lu-BIOCROP), while the other involves re/afforestation (SSP126Lu-REFOREST).

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Arid and semi-arid regions of the world are particularly vulnerable to greenhouse gas-driven hydroclimate change. Climate models are our primary tool for projecting the future hydroclimate that society in these regions must adapt to, but here, we present a concerning discrepancy between observed and model-based historical hydroclimate trends. Over the arid/semi-arid regions of the world, the predominant signal in all model simulations is an increase in atmospheric water vapor, on average, over the last four decades, in association with the increased water vapor-holding capacity of a warmer atmosphere.

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Article Synopsis
  • * A study analyzed a large international group of patients with specific genetic variants (RUNX1, GATA2, DDX41) to identify unique genetic patterns linked to the development of these malignancies, particularly noting different tendencies for early-onset clonal hematopoiesis (CH).
  • * Findings suggest that further monitoring and clinical trials should focus on specific genetic variants to improve preemptive treatments and surveillance for patients, especially those with RUNX1 and DDX41 mutations.
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  • The study investigates the link between child maltreatment and mental disorders in the Australian population, using data from a representative survey of residents aged 16 and older.
  • Findings reveal that 38% of participants met criteria for a mental disorder, with significantly higher rates among those who experienced maltreatment—21.6% in non-maltreated versus 54.8% in those with multi-type maltreatment.
  • Maltreated individuals have about three times higher odds for mental disorders, particularly post-traumatic stress disorder, generalised anxiety disorder, and major depressive disorder, with no significant differences based on gender or socioeconomic factors.
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Objectives: To examine associations between child maltreatment and health service use, both overall, by type and by the number of types of maltreatment reported.

Design, Setting: Cross-sectional, retrospective survey using the Juvenile Victimization Questionnaire-R2: Adapted Version (Australian Child Maltreatment Study); computer-assisted mobile telephone interviews using random digit dialling, Australia, 9 April - 11 October 2021.

Participants: Australians aged 16 years or more.

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Objectives: To estimate the prevalence in Australia of each type of child maltreatment; to identify gender- and age group-related differences in prevalence.

Design, Setting: Cross-sectional national survey; mobile telephone interviews using random digit dialling (computer-generated), Australia, 9 April - 11 October 2021. Retrospective self-report data using validated questionnaire (Juvenile Victimisation Questionnaire-R2 Adapted Version (Australian Child Maltreatment Study).

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Objectives: To determine the prevalence in Australia of multi-type child maltreatment, defined as two or more maltreatment types (physical abuse, sexual abuse, emotional abuse, neglect, or exposure to domestic violence) and to examine its nature, family risk factors, and gender and age cohort differences.

Design: Retrospective cross-sectional survey using a validated questionnaire.

Setting And Participants: Mobile phone random digit-dial sample of the Australian population aged 16 years and older.

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Objectives: To describe the aims, design, methodology, and respondent sample representativeness of the Australian Child Maltreatment Study (ACMS).

Design, Setting: Cross-sectional, retrospective survey; computer-assisted mobile telephone interviewing using random digit dialling (computer-generated), Australia, 9 April - 11 October 2021.

Participants: People aged 16 years or more.

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  • Pregnancy loss and perinatal death deeply affect families, and a study evaluated 'genomic autopsy' along with standard autopsy for 200 affected families, achieving definitive or candidate genetic diagnoses in 105 of them.
  • The findings revealed new types of genetic disorders, with the inheritance patterns showing that 42% of diagnosed cases could lead to risks in future pregnancies.
  • At least 10 families utilized these genetic diagnoses for future pregnancy planning, highlighting the significance of genomic investigations in providing timely information and support for families experiencing pregnancy loss.
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Sharing genomic variant interpretations across laboratories promotes consistency in variant assertions. A landscape analysis of Australian clinical genetic-testing laboratories in 2017 identified that, despite the national-accreditation-body recommendations encouraging laboratories to submit genotypic data to clinical databases, fewer than 300 variants had been shared to the ClinVar public database. Consultations with Australian laboratories identified resource constraints limiting routine application of manual processes, consent issues, and differences in interpretation systems as barriers to sharing.

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  • Bioenergy could potentially expand to cover half of today’s farm land to help keep global warming under 2°C.
  • Using bioenergy with carbon capture can help store carbon in the U.S., but it can also cause some carbon emissions from changing land uses.
  • By 2100, almost 25% of U.S. land might face serious water problems, so we need to think carefully about whether bioenergy or planting more trees is a better choice for the environment.
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Biophysical effects from deforestation have the potential to amplify carbon losses but are often neglected in carbon accounting systems. Here we use both Earth system model simulations and satellite-derived estimates of aboveground biomass to assess losses of vegetation carbon caused by the influence of tropical deforestation on regional climate across different continents. In the Amazon, warming and drying arising from deforestation result in an additional 5.

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SignificanceRecord-setting fires in the western United States over the last decade caused severe air pollution, loss of human life, and property damage. Enhanced drought and increased biomass in a warmer climate may fuel larger and more frequent wildfires in the coming decades. Applying an empirical statistical model to fires projected by Earth System Models including climate-ecosystem-socioeconomic interactions, we show that fine particulate pollution over the US Pacific Northwest could double to triple during late summer to fall by the late 21st century under intermediate- and low-mitigation scenarios.

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GATA2 deficiency syndrome (G2DS) is a rare autosomal dominant genetic disease predisposing to a range of symptoms, of which myeloid malignancy and immunodeficiency including recurrent infections are most common. In the last decade since it was first reported, there have been over 480 individuals identified carrying a pathogenic or likely pathogenic germline GATA2 variant with symptoms of G2DS, with 240 of these confirmed to be familial and 24 de novo. For those that develop myeloid malignancy (75% of all carriers with G2DS disease symptoms), the median age of onset is 17 years (range 0-78 years) and myelodysplastic syndrome is the first diagnosis in 75% of these cases with acute myeloid leukemia in a further 9%.

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Objective: Differences between adolescent self-reported and parent-reported emotional and behavioural difficulties may influence psychiatric epidemiological research. This study examined concordance between adolescents and their parents about mental health symptoms using the Strengths and Difficulties Questionnaire.

Methods: The study comprised a randomly selected, nationally representative sample of adolescents aged 11-17 years who participated in the Second Australian Child and Adolescent Survey of Mental Health and Wellbeing ( = 2967).

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Predicting the consequences of manipulating genotype (G) and agronomic management (M) on agricultural ecosystem performances under future environmental (E) conditions remains a challenge. Crop modelling has the potential to enable society to assess the efficacy of G × M technologies to mitigate and adapt crop production systems to climate change. Despite recent achievements, dedicated research to develop and improve modelling capabilities from gene to global scales is needed to provide guidance on designing G × M adaptation strategies with full consideration of their impacts on both crop productivity and ecosystem sustainability under varying climatic conditions.

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Irrigation affects climate conditions - and especially hot extremes - in various regions across the globe. Yet how these climatic effects compare to other anthropogenic forcings is largely unknown. Here we provide observational and model evidence that expanding irrigation has dampened historical anthropogenic warming during hot days, with particularly strong effects over South Asia.

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Land models are often used to simulate terrestrial responses to future environmental changes, but these models are not commonly evaluated with data from experimental manipulations. Results from experimental manipulations can identify and evaluate model assumptions that are consistent with appropriate ecosystem responses to future environmental change. We conducted simulations using three coupled carbon-nitrogen versions of the Community Land Model (CLM, versions 4, 4.

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