Theo Lorenc
Biographic Data
| ID | 317870 |
|---|---|
| NAME | Theo Lorenc |
| GIVEN NAMES | Theo |
| FAMILY NAME | Lorenc |
| SIGNATURE | LORENC T |
| AFFILIATIONS | London School of Hygiene & Tropical Medicine |
| ORCID | 0000-0001-8937-6378 |
| VERIFIED | Yes |
| TOTAL WORKS | 17 |
| TOTAL CITATIONS | 106 |
| AUTHOR COUNT | 17 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2009 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 5 |
Children’s views of obesity, body size and weight
CRD42025650306
Use and value of systematic reviews in English local authority public health
Research use varies and should be considered within the specific decision-making and political context. There is a need for systematic reviews to be more reflective of the decisions facing local authority public health teams
Understanding the unintended consequences of public health policies
UCs can be used to explore the mechanisms underpinning social change caused by public health policies. Articulating these mechanisms is essential for truly evidence-informed decision-making, to enable informed debate about policy options, and to develop evaluation techniques. Future work includes trying to develop a holistic stakeholder-led evaluation process
Evaluating unintended consequences
Evaluating complex interventions and policies is challenging. This is particularly true for the identification of unintended consequences, whether negative or positive. This article uses data from a workshop with policymakers and evaluators to explore the evaluation of unintended consequences. We identify three main challenges for policymakers and evaluators: being able to identify and evaluate unintended effects, to avoid creating unintended eff…
Alcohol advertising and public health
Background Alcohol consumption is influenced by a complex causal system of interconnected psychological, behavioural, social, economic, legal and environmental factors. These factors are shaped by governments (eg, licensing laws and taxation), by consumers (eg, patterns of alcohol consumption drive demand) and by alcohol industry practices, such as advertising. The marketing and advertising of alcoholic products contributes to an ‘alcogenic envir…
A qualitative study into the development of a physical activity legacy from the London 2012 Olympic Games
Olympic Games have sometimes been considered as public health interventions capable of improving population health by encouraging increased physical activity levels. However, the evidence base does not appear to support this and is of poor quality, focussing on population level outcomes, usually related only to participation in organised sports. A new approach to research into the effects of such events is required focussing on the processes and …
The social ecology of girls' bullying practices
This exploratory study adopts a socio-ecological approach to examine the context of school bullying. It asks: (1) what are students' accounts of bullying practices?; (2) how are these enabled and constrained by the school-environment?; (3) how is gender implicated? Qualitative data were collected from girls in two schools in London via focus groups (one in each school; students aged 12-15) and seven semi-structured interviews (in one school; stud…
A systematic review of barriers to and facilitators of the use of evidence by policymakers
New directions in evidence-based policy research
Despite 40 years of research into evidence-based policy (EBP) and a continued drive from both policymakers and researchers to increase research uptake in policy, barriers to the use of evidence are persistently identified in the literature. However, it is not clear what explains this persistence - whether they represent real factors, or if they are artefacts of approaches used to study EBP. Based on an updated review, this paper analyses this lit…
Adverse effects of public health interventions
Public health interventions may have a range of adverse effects. However, there is limited guidance as to how evaluations should address the possibility of adverse effects. This discussion paper briefly presents a framework for thinking about the potential harms of public health interventions, focusing on the following categories: direct harms; psychological harms; equity harms; group and social harms; and opportunity harms. We conclude that the …
Methods don't make assumptions, researchers do
What types of interventions generate inequalities? Evidence from systematic reviews
PP71 Cultures of Evidence Among Decision-Makers in Non-Health Fields
Background Many non-health public policy sectors which form part of local government may have impacts on population health outcomes. Decision-makers’ views about research evidence, and their practices of evidence use, are less well understood in these sectors than in healthcare or public health. Methods Systematic review (PRISMA) of qualitative evidence. A range of sources were searched. Studies were included if: they included local policy-makers…
Health equity, social justice and human rights, by Ann Taket
Health equity, social justice and human rights, by Ann Taket, Abingdon and New York, Routledge, 2012, xiii + 202pp., ISBN 9780415613750 This book is intended to provide an introductory guide to, an
Crime, fear of crime, environment, and mental health and wellbeing
Realist randomised controlled trials
School-based cognitive-behavioural interventions
Realist randomised controlled trials
Adverse effects of public health interventions
Public health interventions may have a range of adverse effects. However, there is limited guidance as to how evaluations should address the possibility of adverse effects. This discussion paper briefly presents a framework for thinking about the potential harms of public health interventions, focusing on the following categories: direct harms; psychological harms; equity harms; group and social harms; and opportunity harms. We conclude that the …
The social ecology of girls' bullying practices
This exploratory study adopts a socio-ecological approach to examine the context of school bullying. It asks: (1) what are students' accounts of bullying practices?; (2) how are these enabled and constrained by the school-environment?; (3) how is gender implicated? Qualitative data were collected from girls in two schools in London via focus groups (one in each school; students aged 12-15) and seven semi-structured interviews (in one school; stud…
Evaluating unintended consequences
Evaluating complex interventions and policies is challenging. This is particularly true for the identification of unintended consequences, whether negative or positive. This article uses data from a workshop with policymakers and evaluators to explore the evaluation of unintended consequences. We identify three main challenges for policymakers and evaluators: being able to identify and evaluate unintended effects, to avoid creating unintended eff…
Alcohol advertising and public health
Background Alcohol consumption is influenced by a complex causal system of interconnected psychological, behavioural, social, economic, legal and environmental factors. These factors are shaped by governments (eg, licensing laws and taxation), by consumers (eg, patterns of alcohol consumption drive demand) and by alcohol industry practices, such as advertising. The marketing and advertising of alcoholic products contributes to an ‘alcogenic envir…
School-based cognitive-behavioural interventions
Health equity, social justice and human rights, by Ann Taket
Health equity, social justice and human rights, by Ann Taket, Abingdon and New York, Routledge, 2012, xiii + 202pp., ISBN 9780415613750 This book is intended to provide an introductory guide to, an
Crime, fear of crime, environment, and mental health and wellbeing
Realist randomised controlled trials
Methods don't make assumptions, researchers do
What types of interventions generate inequalities? Evidence from systematic reviews
PP71 Cultures of Evidence Among Decision-Makers in Non-Health Fields
Background Many non-health public policy sectors which form part of local government may have impacts on population health outcomes. Decision-makers’ views about research evidence, and their practices of evidence use, are less well understood in these sectors than in healthcare or public health. Methods Systematic review (PRISMA) of qualitative evidence. A range of sources were searched. Studies were included if: they included local policy-makers…
A systematic review of barriers to and facilitators of the use of evidence by policymakers
New directions in evidence-based policy research
Despite 40 years of research into evidence-based policy (EBP) and a continued drive from both policymakers and researchers to increase research uptake in policy, barriers to the use of evidence are persistently identified in the literature. However, it is not clear what explains this persistence - whether they represent real factors, or if they are artefacts of approaches used to study EBP. Based on an updated review, this paper analyses this lit…
Adverse effects of public health interventions
Public health interventions may have a range of adverse effects. However, there is limited guidance as to how evaluations should address the possibility of adverse effects. This discussion paper briefly presents a framework for thinking about the potential harms of public health interventions, focusing on the following categories: direct harms; psychological harms; equity harms; group and social harms; and opportunity harms. We conclude that the …
A qualitative study into the development of a physical activity legacy from the London 2012 Olympic Games
Olympic Games have sometimes been considered as public health interventions capable of improving population health by encouraging increased physical activity levels. However, the evidence base does not appear to support this and is of poor quality, focussing on population level outcomes, usually related only to participation in organised sports. A new approach to research into the effects of such events is required focussing on the processes and …
The social ecology of girls' bullying practices
This exploratory study adopts a socio-ecological approach to examine the context of school bullying. It asks: (1) what are students' accounts of bullying practices?; (2) how are these enabled and constrained by the school-environment?; (3) how is gender implicated? Qualitative data were collected from girls in two schools in London via focus groups (one in each school; students aged 12-15) and seven semi-structured interviews (in one school; stud…
Alcohol advertising and public health
Background Alcohol consumption is influenced by a complex causal system of interconnected psychological, behavioural, social, economic, legal and environmental factors. These factors are shaped by governments (eg, licensing laws and taxation), by consumers (eg, patterns of alcohol consumption drive demand) and by alcohol industry practices, such as advertising. The marketing and advertising of alcoholic products contributes to an ‘alcogenic envir…
Understanding the unintended consequences of public health policies
UCs can be used to explore the mechanisms underpinning social change caused by public health policies. Articulating these mechanisms is essential for truly evidence-informed decision-making, to enable informed debate about policy options, and to develop evaluation techniques. Future work includes trying to develop a holistic stakeholder-led evaluation process
Evaluating unintended consequences
Evaluating complex interventions and policies is challenging. This is particularly true for the identification of unintended consequences, whether negative or positive. This article uses data from a workshop with policymakers and evaluators to explore the evaluation of unintended consequences. We identify three main challenges for policymakers and evaluators: being able to identify and evaluate unintended effects, to avoid creating unintended eff…
Use and value of systematic reviews in English local authority public health
Research use varies and should be considered within the specific decision-making and political context. There is a need for systematic reviews to be more reflective of the decisions facing local authority public health teams
Children’s views of obesity, body size and weight
CRD42025650306
Political science (11 works) · Medicine (10 works) · Health Policy Implementation Science (7 works) · Nursing (7 works) · Psychological intervention (7 works) · Psychology (7 works) · Public relations (7 works) · Public health (6 works) · Environmental health (5 works) · Sociology (5 works)