User profiles for Tjeerd van Staa

Tjeerd van Staa

University of Manchester
Verified email at manchester.ac.uk
Cited by 37604

The use of clinical risk factors enhances the performance of BMD in the prediction of hip and osteoporotic fractures in men and women

…, AM Schott, A Silman, D Torgerson, T van Staa… - Osteoporosis …, 2007 - Springer
BMD and clinical risk factors predict hip and other osteoporotic fractures. The combination
of clinical risk factors and BMD provide higher specificity and sensitivity than either alone. …

Recent advances in the utility and use of the General Practice Research Database as an example of a UK Primary Care Data resource

T Williams, T van Staa, S Puri… - Therapeutic advances in …, 2012 - journals.sagepub.com
Since its inception in the mid-1980s, the General Practice Research Database (GPRD) has
undergone many changes but remains the largest validated and most utilised primary care …

5-Aminosalicylate use and colorectal cancer risk in inflammatory bowel disease: a large epidemiological study

TP van Staa, T Card, RF Logan, HGM Leufkens - Gut, 2005 - gut.bmj.com
Background and aims: The objective of this study was to evaluate the risk of colorectal cancer
(CRC) in patients taking aminosalicylates (5-ASA) for inflammatory bowel disease (IBD). …

Construction and validation of a scoring system for the selection of high-quality data in a Spanish population primary care database (SIDIAP)

…, J Rodriguez, T Williams, T Staa… - … in Primary Care …, 2011 - dugi-doc.udg.edu
Background Computerised databases of primary care clinical records are widely used for
epidemiological research. In Catalonia, the Information System for the Development of …

Good research practices for comparative effectiveness research: approaches to mitigate bias and confounding in the design of nonrandomized studies of treatment …

E Cox, BC Martin, T Van Staa, E Garbe… - Value in …, 2009 - Wiley Online Library
Objectives: The goal of comparative effectiveness analysis is to examine the relationship
between two variables, treatment, or exposure and effectiveness or outcome. Unlike data …

Epidemiology of childhood fractures in Britain: a study using the general practice research database

…, HGM Leufkens, N Bishop, TP van Staa - Journal of bone and …, 2004 - academic.oup.com
A population‐based British cohort study, including ∼6% of the population, was used to derive
age‐ and sex‐specific incidence rates of fractures during childhood. Fractures were more …

Data resource profile: clinical practice research datalink (CPRD)

…, H Forbes, R Mathur, T Van Staa… - International journal …, 2015 - academic.oup.com
The Clinical Practice Research Datalink (CPRD) is an ongoing primary care database of
anonymised medical records from general practitioners, with coverage of over 11.3 million …

Use of oral corticosteroids in the United Kingdom

TP Van Staa, HGM Leufkens, L Abenhaim, B Begaud… - Qjm, 2000 - academic.oup.com
Administration of oral corticosteroids is associated with the development of osteoporosis and
an increased risk of fractures. However, the size of the treated sub‐population who would …

Risks of stroke and mortality associated with suboptimal anticoagulation in atrial fibrillation patients

…, JM Plumb, A Clemens, TP van Staa - Thrombosis and …, 2011 - thieme-connect.com
Atrial fibrillation (AF) carries an increased risk of ischaemic stroke, and oral anticoagulation
with warfarin can reduce this risk. The objective of this study was to evaluate the association …

Epidemiology of fractures in the United Kingdom 1988–2012: variation with age, sex, geography, ethnicity and socioeconomic status

…, P Geusens, F de Vries, TP van Staa… - Bone, 2016 - Elsevier
Rates of fracture worldwide are changing. Using the Clinical Practice Research Datalink (CPRD),
age, and gender, geographical, ethnic and socioeconomic trends in fracture rates …