I. Petersen

Publications259
h-index50
Citations9,286
Highly Influential Citations342
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Relative risk of cardiovascular and cancer mortality in people with severe mental illness from the United Kingdom's General Practice Rsearch Database.
CONTEXT People with severe mental illness (SMI) appear to have an elevated risk of death from cardiovascular disease, but results regarding cancer mortality are conflicting. OBJECTIVE To estimate… Expand
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Trends in incidence, prevalence and prescribing in type 2 diabetes mellitus between 2000 and 2013 in primary care: a retrospective cohort study
Objective To investigate trends in incident and prevalent diagnoses of type 2 diabetes mellitus (T2DM) and its pharmacological treatment between 2000 and 2013. Design Analysis of longitudinal… Expand
  • 184
  • 15
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The incidence of eating disorders in the UK in 2000–2009: findings from the General Practice Research Database
Objectives Few studies have investigated the incidence of eating disorders (EDs). Important questions about changes in the incidence of diagnosed disorders in recent years, disorder and… Expand
  • 239
  • 14
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Survival of people with clinical diagnosis of dementia in primary care: cohort study
Objectives To estimate survival after a diagnosis of dementia in primary care, compared with people without dementia, and to determine incidence of dementia. Design Cohort study using data from The… Expand
  • 175
  • 14
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Prediagnostic presentations of Parkinson's disease in primary care: a case-control study
BACKGROUND Parkinson's disease has an insidious onset and is diagnosed when typical motor features occur. Several motor and non-motor features can occur before diagnosis, early in the disease… Expand
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The REporting of Studies Conducted Using Observational Routinely-Collected Health Data (RECORD) Statement: Methods for Arriving at Consensus and Developing Reporting Guidelines
Objective Routinely collected health data, collected for administrative and clinical purposes, without specific a priori research questions, are increasingly used for observational, comparative… Expand
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Missing data and multiple imputation in clinical epidemiological research
Missing data are ubiquitous in clinical epidemiological research. Individuals with missing data may differ from those with no missing data in terms of the outcome of interest and prognosis in… Expand
  • 238
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Recent trends in the incidence of recorded depression in primary care.
BACKGROUND There is a paucity of data describing how general practitioners (GPs) label or record depression. AIMS To determine incidence and sociodemographic variation in GP-recorded depression… Expand
  • 144
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The REporting of studies Conducted using Observational Routinely-collected health Data (RECORD) Statement
Routinely collected health data, obtained for administrative and clinical purposes without specific a priori research goals, are increasingly used for research. The rapid evolution and availability… Expand
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Prescribing of antipsychotics in UK primary care: a cohort study
Objective To examine the recorded indication for antipsychotic prescriptions in UK primary care. Design Cohort study. Setting Primary care. Participants Individuals prescribed antipsychotics between… Expand
  • 101
  • 8
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