Research Topics
| A BottleSummaryAffiliation: Imperial College Country: UK Publications
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Detail Information
Publications
Association between quality of primary care and hospitalization for coronary heart disease in England: national cross-sectional studyAlex Bottle
Dr Foster Unit, Department of Primary Care and Social Medicine, Imperial College London, London, UK
J Gen Intern Med 23:135-41. 2008..A new pay-for-performance scheme for primary care physicians was introduced in England in 2004 as part of an initiative to link the quality of primary care with physician pay...
Identifying patients at high risk of emergency hospital admissions: a logistic regression analysisAlex Bottle
Department of Primary Care and Social Medicine, Imperial College London, London W6 8RP, UK
J R Soc Med 99:406-14. 2006..To use routine data to identify patients at high risk of future emergency hospital admissions...
Mortality associated with delay in operation after hip fracture: observational studyAlex Bottle
Dr Foster Unit at Imperial College London, Department of Primary Care and Social Medicine, Imperial College London, London W6 8RP
BMJ 332:947-51. 2006..To estimate the number of deaths and readmissions associated with delay in operation after femoral fracture...
Trends in cardiovascular admissions and procedures for people with and without diabetes in England, 1996-2005A Bottle
Department of Primary Care and Social Medicine, Imperial College London, London, UK
Diabetologia 52:74-80. 2009..The aim of this study was to compare 10-year trends in admissions, with and without diabetes recorded, for myocardial infarction, angina, stroke, percutaneous coronary interventions (PCI) and coronary artery bypass graft (CABG)...
Application of AHRQ patient safety indicators to English hospital dataA Bottle
Dr Foster Unit at Imperial, Department of Primary Care and Social Medicine, Imperial College Faculty of Medicine, London, UK
Qual Saf Health Care 18:303-8. 2009..We aimed to apply 10 of the AHRQ indicators for use in English routine hospital admissions data as the first step in validation, and describe their rates in relation to established measures of negative outcome such as mortality...
Controlling for provider of treatment in the modelling of respiratory disease risk near cokeworksAlex Bottle
Department of Epidemiology and Public Health, Imperial College School of Medicine, St Mary s Campus, Norfolk Place, London W2 1PG, U K
Stat Med 23:3139-58. 2004..However, the presence of multiple pollution sources, in addition to the usual shortcomings of ecological studies, makes interpretation difficult...
Comorbidity scores for administrative data benefited from adaptation to local coding and diagnostic practicesAlex Bottle
Dr Foster Unit, Department of Primary Care and Public Health, Imperial College London, 12 Smithfield Street, London EC1A 9LA, UK
J Clin Epidemiol 64:1426-33. 2011..Our objective was to compare the original Charlson index, a modified set of Charlson codes after advice from clinical coders, and a published modified Elixhauser index in predicting in-hospital mortality...
Proximity to coke works and hospital admissions for respiratory and cardiovascular disease in England and WalesP Aylin
The Small Area Health Statistics Unit, Department of Epidemiology and Public Health, Imperial College School of Medicine, St Mary s Campus, Norfolk Place, London W2 1PG, UK
Thorax 56:228-33. 2001..The incidence of hospital admissions for respiratory and cardiovascular diseases in areas close to operating coke works in England and Wales was investigated...
Volume analysis of outcome following restorative proctocolectomyE M Burns
Department of Surgery, Imperial College London, St Mary s Hospital, London, UK
Br J Surg 98:408-17. 2011..This observational study aimed to determine national provision and outcome following pouch surgery (restorative proctocolectomy, RPC) and to examine the effect of institutional and surgeon caseload on outcome...
Value of failure to rescue as a marker of the standard of care following reoperation for complications after colorectal resectionA M Almoudaris
Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
Br J Surg 98:1775-83. 2011..The aim of this study was to assess whether variability exists in FTR rates after reoperation for serious surgical complications following colorectal cancer resections in England...
Increased health burden associated with Clostridium difficile diarrhoea in patients with inflammatory bowel diseaseM H Jen
Dr Foster Unit at Imperial College, Department of Primary Care and Public Health, Imperial College Healthcare Trust, London, UK
Aliment Pharmacol Ther 33:1322-31. 2011..Identifying the clinical burden among hospitalised patients admitted with inflammatory bowel disease is an essential first step towards identifying and treating severe C. difficile infection in such individuals...
Diverticular disease hospital admissions are increasing, with poor outcomes in the elderly and emergency admissionsS Jeyarajah
Department of Colorectal Surgery, King s College Hospital, London, UK
Aliment Pharmacol Ther 30:1171-82. 2009..Diverticular disease has a changing disease pattern with limited epidemiological data...
Hospital stay amongst patients undergoing major elective colorectal surgery: predicting prolonged stay and readmissions in NHS hospitalsO Faiz
Department of Biosurgery and Surgical Technology, Imperial College London, St Mary s Hospital, London, UK
Colorectal Dis 13:816-22. 2011..This article examines the length of stay and consequent bed resource usage of patients undergoing elective excisional colorectal surgery in English NHS trusts...
Elective colonic surgery for cancer in the elderly: an investigation into postoperative mortality in English NHS hospitals between 1996 and 2007O Faiz
Department of Biosurgery and Surgical and Technology, Imperial College, St Mary s Hospital, London, UK
Colorectal Dis 13:779-85. 2011..This study was primarily aimed to quantify perioperative mortality risk in elderly patients undergoing elective colonic resectional surgery. In addition, the safety of minimally invasive colonic surgery in this patient group was evaluated...
A colorectal perspective on voluntary submission of outcome data to clinical registriesA M Almoudaris
Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, St Mary s Hospital, Praed Street, London W2 1NY, UK
Br J Surg 98:132-9. 2011..A comparison was undertaken of trusts that submitted and those that did not submit, or submitted only poorly, voluntarily to a colorectal clinical registry, the National Bowel Cancer Audit Programme (NBOCAP)...
Accessing and using hospital activity dataA Hansell
Department of Epidemiology and Public Health, Imperial College School of Medicine at St Mary's, London
J Public Health Med 23:51-6. 2001..Dump' postcodes, where missing or unknown postcodes are assigned to a local postcode such as that of the hospital, may affect small area analyses and linkage if a proxy patient identifier is constructed that includes postcode...
Assessment of administrative data for evaluating the shifting acquisition of Clostridium difficile infection in EnglandM H Jen
Dr Foster Unit at Imperial College, Department of Primary Care and Public Health, Imperial College, London, UK
J Hosp Infect 80:229-37. 2012..Little is known about the acquisition of Clostridium difficile infection (CDI) and whether it represents hospital- or community-acquired infection...
Descriptive study of selected healthcare-associated infections using national Hospital Episode Statistics data 1996-2006 and comparison with mandatory reporting systemsM H Jen
Department of Primary Care and Social Medicine, Imperial College London, London, UK
J Hosp Infect 70:321-7. 2008..If better coding could be encouraged or made mandatory within HES data, then the current dual system of recording might be unnecessary for effective surveillance of orthopaedic SSIs...
Laparoscopic and conventional appendicectomy in children: outcomes in English hospitals between 1996 and 2006O Faiz
Department of Biosurgery and Surgical Technology, St Mary s Hospital, Imperial College, Praed Street, London, W21NY, UK
Pediatr Surg Int 24:1223-7. 2008..Laparoscopic appendicectomy is increasingly used in children. This national retrospective study compared outcomes of paediatric open and laparoscopic appendicectomy...
Weekend mortality for emergency admissions. A large, multicentre studyPaul Aylin
Dr Foster Unit at Imperial College, Department of Primary Care and Social Medicine, Imperial College London, London SW7 2AZ, UK
Qual Saf Health Care 19:213-7. 2010..Several studies have identified higher mortality for patients admitted as emergencies at the weekend compared with emergency admissions during the week, but most have focused on specific conditions or have had a limited sample size...
The hospital standardised mortality ratio: a powerful tool for Dutch hospitals to assess their quality of care?B Jarman
Dr Foster Unit, Faculty of Medicine, Imperial College London EC1A 9LA, UK
Qual Saf Health Care 19:9-13. 2010..To use the hospital standardised mortality ratio (HSMR), as a tool for Dutch hospitals to analyse their death rates by comparing their risk-adjusted mortality with the national average...
Following Shipman: a pilot system for monitoring mortality rates in primary carePaul Aylin
Department of Epidemiology and Public Health, Imperial College London, St Mary s Campus, Norfolk Place, W2 1PF, London, UK
Lancet 362:485-91. 2003..If used appropriately, such charts represent a useful tool for monitoring deaths in primary care. However, improvement in data quality is essential...
Quality of primary care and hospital admissions for diabetes mellitus in EnglandAlex Bottle
School of Medicine, University of California, San Francisco, CA, USA
J Ambul Care Manage 31:226-38. 2008..However, low neighborhood socioeconomic status is more strongly associated with hospital admission rates for diabetes...
Intelligent information: a national system for monitoring clinical performanceAlex Bottle
Dr Foster Unit at Imperial College, Department of Primary Care and Social Medicine, Imperial College London, First Floor, Jarvis House, 12 Smithfield Street, London EC1A 9LA, U K
Health Serv Res 43:10-31. 2008..To use statistical process control charts to monitor in-hospital outcomes at the hospital level for a wide range of procedures and diagnoses...
Surgical mortality: Hospital episode statistics v central cardiac audit databasePaul Aylin
BMJ 335:839; author reply 839-40. 2007
Traditional and laparoscopic appendectomy in adults: outcomes in English NHS hospitals between 1996 and 2006Omar Faiz
Department of Colorectal Surgery, St Mark s Hospital, Harrow, Middlesex, UK
Ann Surg 248:800-6. 2008..This study investigated length of stay, readmission rates, and postoperative mortality in adult patients undergoing traditional and laparoscopic appendectomy in England between April 1, 1996, and March 31, 2006...
Use of administrative data or clinical databases as predictors of risk of death in hospital: comparison of modelsPaul Aylin
Dr Foster Unit, Imperial College London, London EC1A 9LA
BMJ 334:1044. 2007....
Some way to go for consistent implementation of guidance on hip fractureAlex Bottle
Dr Foster Unit, Imperial College
BMJ 328:1097. 2004
Paediatric cardiac surgical mortality in England after Bristol: descriptive analysis of hospital episode statistics 1991-2002Paul Aylin
Dr Foster Unit at Imperial College London, Department of Epidemiology and Public Health, Imperial College School of Medicine, London W2 1PG
BMJ 329:825. 2004..To describe trends in mortality of open cardiac surgery in children in Bristol and England since 1991...
Trends in admissions and deaths in English NHS hospitalsBrian Jarman
Dr Foster Unit, Imperial College
BMJ 328:855. 2004
Acute stroke units and early CT scans are linked to lower in-hospital mortality ratesBrian Jarman
Dr Foster Unit, Imperial College
BMJ 328:369. 2004
Length of hospital stay and subsequent emergency readmissionSusan Williams
Dr Foster Unit, Imperial College
BMJ 331:371. 2005
Variation in operation rates by primary care trustPaul Aylin
Dr Foster Unit, Imperial College
BMJ 331:539. 2005
Mortality rates. Dead confusingBrian Jarman
Imperial College of Science, Technology and Medicine
Health Serv J 112:26-7. 2002..After standardisation for age group and length of stay, the adjusted mortality rates show no bias against hospitals with more patients staying more than 28 days, or against hospitals with more geriatric beds...
Variations in vaginal and abdominal hysterectomy by region and trust in EnglandAlex Bottle
Dr Foster Unit at Imperial, Department of Epidemiology and Piblic Health, Imperial College London, London W2 1PG, UK
BJOG 112:326-8. 2005..About two-thirds of the variation remained unaccounted for. CONCLUSION: Despite evidence suggesting that the majority of hysterectomies may be performed vaginally, very few English trust match this...
Social class and elective caesareans in the English NHSKatherine Barley
Dr Foster Unit, Imperial College
BMJ 328:1399. 2004
Discharge destination and length of stay: differences between US and English hospitals for people aged 65 and overBrian Jarman
Dr Foster Unit, Imperial College
BMJ 328:605. 2004
Capacity planning. Figures you can count onSimon Wallace
Dr Foster Unit, Imperial College, London
Health Serv J 113:30-1. 2003
How often are adverse events reported in English hospital statistics?Paul Aylin
Dr Foster Unit, Imperial College
BMJ 329:369. 2004
Prescribing of lipid regulating drugs and admissions for myocardial infarction in EnglandAzeem Majeed
BMJ 329:645. 2004
Counting hospital activity: spells or episodes?Paul Aylin
Dr Foster Unit at Imperial College
BMJ 329:1207. 2004
Hospital admissions for drug and alcohol use in people aged under 45Susan Williams
Dr Foster Unit, Imperial College
BMJ 330:115. 2005
Monitoring changes in hospital standardised mortality ratiosBrian Jarman
Dr Foster Unit, Imperial College
BMJ 330:329. 2005
Trends in day surgery ratesPaul Aylin
Dr Foster Unit, Imperial College
BMJ 331:803. 2005
Obesity and type 2 diabetes in children, 1996-7 to 2003-4Paul Aylin
Foster Unit at Imperial College
BMJ 331:1167. 2005
Hospital episode statistics: time for clinicians to get involved?Alex Bottle
Clin Med 2:483-4; author reply 484. 2002
