The Primary Care Database User Group Meetings are open to all with an interest in electronic health record research, and are held in the Research Department of Primary Care and Population Health, located at the Royal Free Hospital. Directions can be found on our contact page. To sign up to the Primary Care Database User Group mailing list, please register on JISCMail

Primary Care Database User Group Meetings

Tuesday 10th May, 3.30-5pm

Impact of Preadmission Depression on Mortality following Myocardial Infarction: a study using Danish registry data

Jens Sundbøll (Aarhus University, Denmark)

In this presentation, the focus will be on the use of Danish registries for research. The Danish medical registries are recognized as being among the best population-based data sources in the world. However, they are based on routine hospital discharge diagnoses and validation of the data as well as cautious interpretation is necessary. A validation study and a relevant original investigation will serve as examples of how these data are typically used in research.

Type 2 diabetes mellitus in severe mental illness; inequalities by ethnicity and age: cross-sectional analysis from the UK

Jayati Das-Munshi  (King's College London, UK)

Although the prevalence of type 2 diabetes mellitus is known to be elevated in people with severe mental illnesses (SMI) (schizophrenia, bipolar affective disorders and any non-organic psychosis), the nature of this association by ethnic minority status is unclear. This is a concern as prevalence of type 2 diabetes mellitus is known to be elevated in some ethnic minority groups. Jay will describe a study which used data from 588408 individuals registered to general practices in a defined part of London to investigate the association of severe mental illnesses with type 2 diabetes mellitus and to assess variations by ethnicity and age. 

Previous seminars

7th April 2016

Sigrun Alba Johannesdottir Schmidt and Morten Schmidt (both from Aarhus University, Denmark, and visiting scholars at LSHTM, UK) presented work on partner bereavement and risk of herpes zoster, and on serum creatinine elevation following ACEi/ARB initiation.

29th October 2015

Manuj Sharma from UCL and Anil Mor from Aarhus University presented work on type 2 diabetes.

7th September 2015

Rohini Mathur from LSHTM and Tra Pham from UCL presented work on the use of ethnicity data in primary care databases.

1st July 2015

Will Dixon from the University of Manchester gave a presentation on challenging the assumptions of data preparation and risk attribution in pharmacoepidemiology.

19th May 2015

Krishnan Bhaskaran from LSHTM presented work using primary care data from the Clinical Practice Research Datalink to study the association between body mass index and a wide range of cancers (Bhaskaran et al, Lancet 2014).

16th October 2014

Ruth Blackburn presented work using THIN to explore cardiovascular risk screening and statin prescribing to individuals with severe mental illness.

17th September 2014

Yonas Weldeselassie from the Open University gave a presentation on the self controlled case series (SCCS) method with smooth risk functions. More information on SCCS methodology.

1st July 2014

In a talk titled "Doctor, doctor, how can I be sure this medication is safe?", Irene Petersen discussed how electronic health records can and can't be used to examine the safety and effectiveness of prescribed medicine, in the light of the recent debate about the safety of commonly-used medication such as statins, hypnotics, and antidepressants.

26th March 2014

Liz Sampson and Rebecca Lodwick presented a study on: "Health outcomes and health service use of cohabitees living with terminally ill patients with cancer, chronic obstructive airways disease, and dementia", and Michael King and Louise Marston presented a study on: "Mortality and Medical Care after Bereavement: A General Practice Cohort Study".

11th December 2013

Gillian Hall, who has been involved in primary care database research from the very beginning, talked about the history of these databases, as well as guidelines and good practice when using them.

30th October 2013

Hedvig Nordeng from the University of Oslo talked about pharmacoepidemiological studies on medication use and safety during pregnancy.

22nd May 2013

Daniel Prieto-Alhambra gave a short introduction to the Catalan SIDIAP primary care database.

9th April 2013

Anoop Shah presented his Freetext Matching Algorithm (FMA), a program which can convert free text entered by clinicians into relevant Read codes. The program, and the paper describing the program, are available free and open access on BioMed Central.

5th February 2013

Our first PDUG meeting of 2013 featured a short presentation by Myriam Alexander on the exploration of multiple measurements of cardiovascular risk factors in THIN. This was followed by Laura Shallcross who presented some results of her PhD project on skin infections in primary care.

4th December 2012

Katie Harron from the UCL Institute of Child Health gave a talk on data linkage and what can go wrong when linking datasets.  

16th October 2012

The meeting was about the development of reporting guidelines for electronic health records (RECORD). More information is available from the RECORD website:

19th September 2012

We started the new academic year with a very special user group meeting featuring Tarek Hammad, deputy director for the Division of epidemiology at the US Food and Drug Agency (FDA). He talked about the role of epidemiology in drug safety from a regulatory perspective.

9th July 2012

Jordana Peake, from the UCL Institute for Women's Health presented on the use of patient identifiable information for data linkage for research into neural tube defects in ethnic communities. And Jenny Woodman, from the UCL Institute of Child Health, told us about the role of the GP for children with (possible) abuse and neglect: a mixed methods study.

14th June 2012

This usergroup meeting focussed on time series analyses. Lisa Szatkowski and Tessa Langley from the UK Centre for Tobacco Control Studies and University of Nottingham presented their work on evaluation of tobacco control policies: Evaluating tobacco control policies using time series analysis: examples and reflections. Some of their work is detailed in a recent paper using structural vector autoregression analysis.

28th March 2012

We had three speakers, who all have substantial experience with analysing HES data. Pia Hardelid (ICH, UCL), Nick Freemantle (PCPH, UCL) and Ruth Gilbert (ICH, UCL). Pia provided us with an overview of HES data and how it is organised, Nick told us about a study he was involved in that used HES data to assess whether weekend hospitalisation is associated with an increased risk of death, and finally, Ruth shared her expertise on validating codes in HES. 

7th November 2011

Ruth Brauer from the London School of Hygiene and Tropical Medicine (LSHTM) told us all about her work on antipsychotic agents and myocardial infarction. She compared the results from a case control study to a self-controlled case series design.

28th September 2011

Cathy Welch told us about a two stage method to identify outliers in electronic databases. The slides from this presentation can be found here, and the paper discussed is in press, but will be added to our publications list once it is available.

18th July 2011

Gareth James, a member of our very own THIN team, gave a talk about prevalence and patterns of long term prophylactic antibiotic use in COPD, and how to use multiple imputation to account for missing data in antibiotic prescribing. 

28th March 2011

Beatrix De La Iglesia from the University of East Anglia talked about the work for their recent publication in Heart: "Performance of the ASSIGN cardiovascular disease risk score on a UK cohort of patients from general practice".

Page last modified on 09 apr 15 15:53 by Rebecca K Lodwick