Publications by authors named "Clarabelle T Pham"

Objectives: To evaluate whether a prognosis-tailored triage of ART for couples with idiopathic infertility by using the Hunault prognostic model can decrease the cost of treatment without compromising the chance of live birth.

Study Design: This is a retrospective study conducted in an Australian fertility clinic. Couples seeking infertility consultation who were subsequently found to have idiopathic infertility after evaluation were included.

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Background: The Ambient Intelligent Geriatric Management (AmbIGeM) system combines wearable sensors with artificial intelligence to trigger alerts to hospital staff before a fall. A clinical trial found no effect across a heterogenous population, but reported a reduction in the injurious falls rate in a post hoc analysis of patients on Geriatric Evaluation Management Unit (GEMU) wards. Cost-effectiveness and Value of Information (VoI) analyses of the AmbIGeM system in GEMU wards was undertaken.

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Objectives: To examine individual, medication, system, and healthcare related predictors of hospitalization and emergency department (ED) presentation within 90 days of entering the aged care sector, and to create risk-profiles associated with these outcomes.

Design And Setting: Retrospective population-based cohort study using data from the Registry of Senior Australians.

Participants: Older people (aged 65 and older) with an aged care eligibility assessment in South Australia between January 1, 2013 and May 31, 2016 (N = 22,130).

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Background: Repeated admission to hospital can be stressful for older people and their families and puts additional pressure on the health care system. While there is some evidence about strategies to better integrate care, improve older patients' experiences at transitions of care, and reduce preventable hospital readmissions, implementing these strategies at scale is challenging. This program of research comprises multiple, complementary research activities with an overall goal of improving the care for older people after discharge from hospital.

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Research Question: What are the long-term costs and effects of oil- versus water-based contrast in infertile women undergoing hysterosalpingography (HSG)?

Design: This economic evaluation of a long-term follow-up of a multicentre randomized controlled trial involved 1119 infertile women randomized to HSG with oil- (n = 557) or water-based contrast (n = 562) in the Netherlands.

Results: In the oil-based contrast group, 39.8% of women needed no other treatment, 34.

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Objective: To determine the impact of oil-based versus water-based contrast on pregnancy and live birth rates ≤5 years after hysterosalpingography (HSG) in infertile women.

Design: A 5-year follow-up study of a multicenter randomized trial.

Setting: Hospitals.

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Objective: Patients with comorbidities can be referred to a physician-led high-risk clinic for medical optimisation prior to elective surgery at the discretion of the surgical consultant, but the factors that influence this referral are not well understood. The aims of this study were to understand the factors that influence a surgeon's decision to refer a patient to the clinic, and how the clinic impacts on the management of complex patients.

Design: Qualitative study using theoretical thematic analysis to analyse transcribed semi-structured interviews.

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Research Question: Does delaying IVF for 6 months in couples with unexplained infertility, compared with immediate IVF treatment, decrease the cost of IVF without compromising success rates?

Design: Decision modelling was used to evaluate the cost and outcomes of immediate IVF versus delayed IVF for a cohort of women aged <40 years suffering unexplained infertility. Australian data and costs were used in the analysis. For different age groups, three scenarios were tested where 10%, 50% and 90% of couples with unexplained infertility delayed IVF for 6 months if they had a good prognosis for natural conception.

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Study Question: Is a freeze-only strategy more cost-effective from a patient perspective than fresh embryo transfer (ET) after one completed In Vitro Fertilization/ Intracytoplasmic Sperm Injection (IVF/ICSI) cycle in women without polycystic ovary syndrome (PCOS)?

Summary Answer: There is a low probability of the freeze-only strategy being cost-effective over the fresh ET strategy for non-PCOS women undergoing IVF/ICSI.

What Is Known Already: Conventionally, IVF embryos are transferred in the same cycle in which oocytes are collected, while any remaining embryos are frozen and stored. We recently evaluated the effectiveness of a freeze-only strategy compared with a fresh ET strategy in a randomized controlled trial (RCT).

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Objective: To determine the cost effectiveness of the use of oil-based versus water-based contrast in infertile women undergoing hysterosalpingography (HSG).

Design: Economic evaluation alongside a multicenter randomized trial.

Setting: Hospitals.

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Background: Since caesarean sections (CSs) before 39  weeks gestation are associated with higher rates of neonatal respiratory morbidity, it is recommended to delay elective CSs until 39  weeks. However, this bears the risk of earlier spontaneous labour resulting in unplanned CSs, which has workforce and resource implications, specifically in smaller obstetric units.

Aim: To assess, in a policy of elective CSs from 39  weeks onward, the number of unplanned CSs to prevent one neonate with respiratory complications, as compared to early elective CS.

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Objective: Clinics have been established to provide preoperative medical consultations, and enable the anaesthetist and surgeon to deliver the best surgical outcome for patients. However, there is uncertainty regarding the effect of such clinics on surgical, in-hospital and long-term outcomes. A systematic review of the literature was conducted to determine the effectiveness of preoperative medical consultations by internal medicine physicians for patients listed for elective surgery.

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Objective: To compare the health and economic impacts of implementing efficacious treatment interventions with maintaining standard practice in maternal and perinatal health care.

Design And Setting: We identified randomised clinical trials (RCTs) in the Perinatal Society of Australia and New Zealand trials database that commenced recruitment during 2008 and had completed recruitment by 2015. Data from clinical trial registries and publications were collated to calculate the potential cost savings achievable by implementing efficacious treatment interventions.

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Rationale, Aims And Objectives: A physician-led clinic for the preoperative optimization and management of high-risk surgical patients was implemented in a South Australian public hospital in 2008. This study aimed to estimate the costs and effects of the clinic using a mixed retrospective and prospective observational study design.

Method: Alternative propensity score estimation methods were applied to retrospective routinely collected administrative and clinical data, using weighted and matched cohorts.

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Unlabelled: The aim of this study was to assess trends in hip fracture rates and outcomes following hospitalisation for hip fracture. Hip fracture admissions increased over the study period. Men fared worst in terms of higher absolute mortality.

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Objective: Proposed Australian healthcare reforms describe a move towards partial Commonwealth funding of public hospitals, whereby hospitals will be paid an 'efficient price' for each separation, incorporating both the costs and benefits of services. This paper describes a potential approach to setting the efficient price using risk adjusted cost-effectiveness (RAC-E) analysis.

Methods: RAC-E analysis uses a decision analytic framework to estimate lifetime costs and survival for individual patients, which are standardised by comparing observed and expected values.

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Background: Laparoscopic ventral hernia repair may be an alternative to open mesh repair as it avoids a large abdominal incision, and thus potentially reduces pain and hospital stay. This review aimed to assess the safety and efficacy of laparoscopic ventral hernia repair in comparison with open ventral hernia repair.

Method: A systematic review was conducted, with comprehensive searches identifying six randomised controlled trials (RCTs) and eight nonrandomised comparative studies.

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