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Profil bibliographique

John Mehegan

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

111Publications signalées
2745Citations signalées
1Affiliations récentes

Les institutions déclarées

Les domaines associés

Gestational Diabetes Research and ManagementBirth, Development, and HealthObesity, Physical Activity, DietPregnancy and preeclampsia studiesNutritional Studies and Diet

Les publications récentes

Accès ouvert 2026 peer-review OpenAlex

Peer Review Report For: Scoping of Policy Impacts for Regulating E-cigarettes (SPIRE): findings from a data and decision analytic model mapping project [version 1; peer review: 2 approved, 1 not approved]

Hazel Squires, Duncan Gillespie, Loren Kock, Emma Hock et autres

Background E-cigarettes, also known as vapes, are lower risk products compared to conventional cigarettes, that can aid smoking cessation. However, they have been developed to also appeal to people who do not smoke, and are not harm-free. The challenge is for vaping …

gb (code pays fourni par la source)

0 citations
Accès ouvert 2025 peer-review OpenAlex

Peer Review Report For: Scoping of Policy Impacts for Regulating E-cigarettes (SPIRE): findings from a data and decision analytic model mapping project [version 1; peer review: 1 approved, 1 not approved]

Hazel Squires, Duncan Gillespie, Loren Kock, Emma Hock et autres

Background E-cigarettes, also known as vapes, are lower risk products compared to conventional cigarettes, that can aid smoking cessation. However, they have been developed to also appeal to people who do not smoke, and are not harm-free. The challenge is for vaping …

gb (code pays fourni par la source)

0 citations
Accès ouvert 2025 article OpenAlex

Development and validation of a multi-agent AI pipeline for automated credibility assessment of tobacco misinformation: a proof-of-concept study

Sherif Elmitwalli, John Mehegan, Sophie Braznell, Allen Gallagher

Background: The proliferation of tobacco-related misinformation poses significant public health risks, requiring scalable solutions for credibility assessment. Traditional manual fact-checking approaches are resource-intensive and cannot match the pace of misinformation spread. Objective: To develop and validate a proof-of-concept multi-agent AI pipeline for …

gb (code pays fourni par la source)

0 citations Frontiers in Artificial Intelligence
Accès ouvert 2025 peer-review OpenAlex

Peer Review Report For: Scoping of Policy Impacts for Regulating E-cigarettes (SPIRE): findings from a data and decision analytic model mapping project [version 1; peer review: 1 not approved]

Hazel Squires, Duncan Gillespie, Loren Kock, Emma Hock et autres

Background E-cigarettes, also known as vapes, are lower risk products compared to conventional cigarettes, that can aid smoking cessation. However, they have been developed to also appeal to people who do not smoke, and are not harm-free. The challenge is for vaping …

gb (code pays fourni par la source)

0 citations
Accès ouvert 2025 article OpenAlex

Scoping of Policy Impacts for Regulating E-cigarettes (SPIRE): findings from a data and decision analytic model mapping project

Hazel Squires, Duncan Gillespie, Loren Kock, Emma Everson-Hock et autres

Background: E-cigarettes, also known as vapes, are lower risk products compared to conventional cigarettes, that can aid smoking cessation. However, they have been developed to also appeal to people who do not smoke, and are not harm-free. The challenge is for vaping …

gb (code pays fourni par la source)

4 citations NIHR Open Research
Accès ouvert 2025 article OpenAlex

Scalable evaluation framework for retrieval augmented generation in tobacco research using large Language models

Sherif Elmitwalli, John Mehegan, Sophie Braznell, Allen Gallagher

Retrieval-augmented generation (RAG) systems show promise in specialized knowledge domains, but the tobacco research field lacks standardized assessment frameworks for comparing different large language models (LLMs). This gap impacts public health decisions that require accurate, domain-specific information retrieval from complex tobacco industry …

gb (code pays fourni par la source)

7 citations Scientific Reports
Accès ouvert 2025 article OpenAlex

Independent companies in the tobacco supply chain: transparency and environmental social governance

Fred Dunwoodie Stirton, Rosemary Hiscock, John Mehegan, Allen Gallagher et autres

OBJECTIVE: Previous research has identified that transnational tobacco companies lack transparency and that they hide their harms to health and nature behind environmental, social and governance (ESG) reporting. Our objective was to find whether independent tobacco supply chain companies similarly lack transparency …

gb (code pays fourni par la source)

2 citations Tobacco Control
Accès ouvert 2024 article OpenAlex

Enhancing sentiment and intent analysis in public health via fine-tuned Large Language Models on tobacco and e-cigarette-related tweets

Sherif Elmitwalli, John Mehegan, Allen Gallagher, Raouf Alebshehy

Background: Accurate sentiment analysis and intent categorization of tobacco and e-cigarette-related social media content are critical for public health research, yet they necessitate specialized natural language processing approaches. Objective: To compare pre-trained and fine-tuned Flan-T5 models for intent classification and sentiment analysis …

gb (code pays fourni par la source)

4 citations Frontiers in Big Data
Accès ouvert 2024 article OpenAlex

Evaluation of a complex intervention: the Latch On randomized controlled trial of multicomponent breastfeeding support for women with a raised body mass index

Catherine McNestry, Anna Hobbins, Niamh Donnellan, Paddy Gillespie et autres

BACKGROUND: Latch On's objective was to achieve improved breastfeeding rates in women with raised body mass indices using a multicomponent breastfeeding support intervention. METHODS: A hybrid type 1 implementation-effectiveness trial with mixed-methods process and health economics analyses were conducted. Data collection included …

ie, au (code pays fourni par la source)

0 citations Journal of Public Health
Accès ouvert 2024 article OpenAlex

Sailing along the global tobacco supply chain: public health insights of innovative database project

Rosemary Hiscock, F Dunwoodie Stirton, Britta Matthes, John Mehegan et autres

Abstract Background Tobacco control commonly focuses on reducing tobacco demand rather than tobacco supply. This paper presents findings from a major four-year project on the tobacco supply chain. Transnational Tobacco and Leaf Companies (TTLCs) and other tobacco supply chain companies argue that …

gb, in (code pays fourni par la source)

0 citations European Journal of Public Health
Accès ouvert 2024 article OpenAlex

Physical activity, sedentary behaviour, and childhood asthma: a European collaborative analysis

Marianne Eijkemans, Monique Mommers, Margreet W. Harskamp–van Ginkel, Tanja G. M. Vrijkotte et autres

OBJECTIVES: To investigate the associations of physical activity (PA) and sedentary behaviour in early childhood with asthma and reduced lung function in later childhood within a large collaborative study. DESIGN: Pooling of longitudinal data from collaborating birth cohorts using meta-analysis of separate …

nl, tw, se, de, dk, no, us, fr, pt, br, pl, es, gb, ie, ch, np, fi (code pays fourni par la source)

4 citations BMJ Open Respiratory Research
Accès ouvert 2024 article OpenAlex

Analysis of Philip Morris International’s ‘aspirational’ target for its 2025 cigarette shipments

John Mehegan, Allen Gallagher, Sherif Elmitwalli, Richard Edwards et autres

BACKGROUND: Philip Morris International (PMI) claims to be transforming and has committed to a 'smoke-free' future. In 2020, it announced an 'aspirational' target for reduced cigarette shipments by 2025. METHODS: PMI cigarette shipment data are taken from PMI quarterly financial reports 2008-2023. …

gb, nz (code pays fourni par la source)

9 citations Tobacco Control

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