Andrew J. Stevens

Learn More
Epilepsy is a chronic neurological disorder that affects 0.5-1% of the population. Up to one-third of patients will have incompletely controlled seizures or debilitating side effects of anticonvulsant medications. Although some of these patients may be candidates for resection, many are not. The desire to find alternative treatments for epilepsy has led to(More)
The requirements of the UK Equality Act 2010 and some high profile criticism for using a potentially ageist methodology have prompted the National Institute for Health and Clinical Excellence (NICE) to assess the processes and methodology it uses to make appraisal decisions. This paper argues that NICE has established rigorous systems to protect against(More)
OBJECTIVE To assess the validity of case mix adjustment methods used to derive standardised mortality ratios for hospitals, by examining the consistency of relations between risk factors and mortality across hospitals. DESIGN Retrospective analysis of routinely collected hospital data comparing observed deaths with deaths predicted by the Dr Foster Unit(More)
OBJECTIVES (1) Methodological research has few well-defined tools and processes analogous to those available for reviews and data collection in substantive health technology assessment. (2) This project was set up to obtain researchers' and others' views on the innovative projects on research methodology under the NHS Health Technology Assessment Programme(More)
Because of the recent and controversial example of sham surgery for the evaluation of fetal tissue transplants for Parkinson's disease, there is renewed interest in the ethics of using "active" placebos in surgical trials, where otherwise there are no inert procedures available, and in pharmacological trials, where there are inert substances, but where(More)
OBJECTIVE To examine lay persons' ability to identify methods of random allocation and their acceptability of using methods of random allocation in a clinical trial context. DESIGN Leaflets containing hypothetical medical, non-medical, and clinical trial scenarios involving random allocation, using material from guidelines for trial information leaflets.(More)
BACKGROUND Although acute hospitals offer a twenty-four hour seven day a week service levels of staffing are lower over the weekends and some health care processes may be less readily available over the weekend. Whilst it is thought that emergency admission to hospital on the weekend is associated with an increased risk of death, the extent to which this(More)
Ordering information You can download the following documents from www.nice.org.uk/TA162 ! The full guidance (this document). ! A quick reference guide for healthcare professionals. ! Information for people with non-small-cell lung cancer and their carers ('Understanding NICE guidance'). ! Details of all the evidence that was looked at and other background(More)
OBJECTIVES To develop criteria for classifying databases in relation to their potential use in health technology (HT) assessment and to apply them to a list of databases of relevance in the UK. To explore the extent to which prioritized databases could pick up those HTs being assessed by the National Coordinating Centre for Health Technology Assessment(More)
BACKGROUND AND OBJECTIVE Utilities (values representing preferences) for healthcare priority setting are typically obtained indirectly by asking patients to fill in a quality of life questionnaire and then converting the results to a utility using population values. We compared such utilities with those obtained directly from patients or the public. (More)