Sarah Wordsworth

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PURPOSE To compare the efficacy and safety of ranibizumab and bevacizumab intravitreal injections to treat neovascular age-related macular degeneration (nAMD). DESIGN Multicenter, noninferiority factorial trial with equal allocation to groups. The noninferiority limit was 3.5 letters. This trial is registered (ISRCTN92166560). PARTICIPANTS People >50(More)
OBJECTIVES Expert opinion is considered as a legitimate source of information for decision-analytic modeling where required data are unavailable. Our objective was to develop a practical computer-based tool for eliciting expert opinion about the shape of the uncertainty distribution around individual model parameters. METHODS We first developed a prepilot(More)
BACKGROUND Early patient referral correlates with improved patient survival on dialysis. We examine whether early referral and a planned first dialysis affect quality of life (QoL). METHODS All patients commencing dialysis in nine centres in seven European countries between 1 July 1998 and 31 October 1999 were recruited. DEFINITIONS early(More)
Genetic testing in health care can provide information to help with disease prediction, diagnosis, prognosis, and treatment. Assessing the clinical utility of genetic testing requires a process to value and weight different outcomes. This article discusses the relative merits of different economic measures and methods to inform recommendations relative to(More)
International comparisons of health care systems and services have created increased interest in the comparability of cost results. This study compared top-down and bottom-up approaches to collecting unit cost data across centres in the context of examining the cost-effectiveness of dialysis therapy across Europe. The study tested whether health care(More)
OBJECTIVES To evaluate the effectiveness and cost-effectiveness of two complementary interventions, using familial breast cancer as a model condition. The primary care intervention consisted of providing computerised referral guidelines and related education to GPs. The nurse counsellor intervention evaluated genetic nurses as substitutes for specialist(More)
OBJECTIVE To compare the effectiveness of clomifene citrate and unstimulated intrauterine insemination with expectant management for the treatment of unexplained infertility. DESIGN Three arm parallel group, pragmatic randomised controlled trial. SETTING Four teaching hospitals and a district general hospital in Scotland. PARTICIPANTS Couples with(More)
BACKGROUND AND AIMS Inflammatory Bowel Disease (which includes Crohn's Disease and Ulcerative Colitis), is a chronic condition characterised by substantial morbidity. Inflammatory Bowel Disease patients are considered expensive to manage, hence accurate estimates of care costs are crucial to help healthcare providers plan clinical management. The aim of(More)
AIM Genomic interventions could enable improved disease stratification and individually tailored therapies. However, they have had a limited impact on clinical practice to date due to a lack of evidence, particularly economic evidence. This is partly because health economists are yet to reach consensus on whether existing methods are sufficient to evaluate(More)
Accurate resource-use measurement is challenging within an economic evaluation, but is a fundamental requirement for estimating efficiency. Considerable research effort has been concentrated on the appropriate measurement of outcomes and the policy implications of economic evaluation, while methods for resource-use measurement have been relatively(More)