Publications by authors named "M H Litchfield"

Bacteriophages Ajin and OverHedge were isolated from soil in Tennessee using the bacterium . Ajin and OverHedge (cluster EF) have a genome of 56,993 bp and 56,559 bp, containing 86 and 81 predicted genes, respectively. The Ajin genome has unique genes, phosphatase and glycosyltransferase, compared to the OverHedge.

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Background: The Medicines Intelligence (MedIntel) Data Platform is an anonymised linked data resource designed to generate real-world evidence on prescribed medicine use, effectiveness, safety, costs and cost-effectiveness in Australia.

Results: The platform comprises Medicare-eligible people who are ≥18 years and residing in New South Wales (NSW), Australia, any time during 2005-2020, with linked administrative data on dispensed prescription medicines (Pharmaceutical Benefits Scheme), health service use (Medicare Benefits Schedule), emergency department visits (NSW Emergency Department Data Collection), hospitalisations (NSW Admitted Patient Data Collection) plus death (National Death Index) and cancer registrations (NSW Cancer Registry). Data are currently available to 2022, with approval to update the cohort and data collections annually.

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Background/obectives: Oral retinoids are teratogenic, and pregnancy avoidance is an important part of retinoid prescribing. Australia does not have a standardised pregnancy prevention programme for women using oral retinoids, and the contraception strategies for women who use oral retinoids are not well understood. The objectives were to determine trends in the use of prescription retinoids among Australian reproductive-aged women and whether women dispensed oral retinoids used contraception concomitantly.

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Article Synopsis
  • The study investigates how different methods of analyzing medicine dispensing data can lead to varying research outcomes, specifically in the context of patients starting metformin treatment.
  • Four Australian sites used a HARper protocol to enhance reproducibility and assessed treatment events like discontinuation and switching, leading to good agreement on basic demographics but poor agreement on key treatment outcome measurements.
  • The findings highlight that inconsistent analytical choices can compromise research replicability, underscoring the need for detailed protocols like HARPER to ensure clarity in study methods.
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Objectives: This study aimed to compare the performance of the NeuMoDx™ SARS-CoV-2 Assay, implemented on the NeuMoDx 96 Molecular System, with that of the ThermoFisher TaqPath™ COVID-19 CE-IVD RT-PCR Kit (reference method).

Methods: Overall, 450 nasopharyngeal swab samples, previously tested using the reference method, were tested by the NeuMoDx Assay, and the clinical sensitivity and specificity of the assay were analyzed.

Results: By retrospective statistical analysis of all valid results, the NeuMoDx Assay had a clinical specificity of 100% (95% confidence interval [CI]: 98.

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