Silvia Liverani

ORCID: 0000-0002-1870-3017
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About
Contact & Profiles
Research Areas
  • Bayesian Methods and Mixture Models
  • Statistical Methods and Inference
  • Statistical Methods and Bayesian Inference
  • Air Quality and Health Impacts
  • Cerebral Palsy and Movement Disorders
  • Bayesian Modeling and Causal Inference
  • Health disparities and outcomes
  • Spatial and Panel Data Analysis
  • Gene expression and cancer classification
  • Climate Change and Health Impacts
  • Environmental Justice and Health Disparities
  • Data-Driven Disease Surveillance
  • Advanced Clustering Algorithms Research
  • Private Equity and Venture Capital
  • Infant Development and Preterm Care
  • Nutritional Studies and Diet
  • Firm Innovation and Growth
  • Family and Disability Support Research
  • Data Management and Algorithms
  • Entrepreneurship Studies and Influences
  • Economic and Environmental Valuation
  • Health Systems, Economic Evaluations, Quality of Life
  • Urban Transport and Accessibility
  • Food Security and Health in Diverse Populations
  • Obesity, Physical Activity, Diet

Queen Mary University of London
2018-2025

British Library
2019-2024

Turing Institute
2019-2024

The Alan Turing Institute
2019-2024

Wollo University
2022

University of Gondar
2022

McMaster University
2022

Universidad de Navarra
2021

University of Michigan
2019-2021

Michigan United
2021

Twenty-nine teams involving 61 analysts used the same data set to address research question: whether soccer referees are more likely give red cards dark-skin-toned players than light-skin-toned players. Analytic approaches varied widely across teams, and estimated effect sizes ranged from 0.89 2.93 ( Mdn = 1.31) in odds-ratio units. Twenty (69%) found a statistically significant positive effect, 9 (31%) did not observe relationship. Overall, 29 different analyses 21 unique combinations of...

10.1177/2515245917747646 article EN cc-by-nc Advances in Methods and Practices in Psychological Science 2018-08-23

Cerebral palsy (CP) is considered a pediatric condition despite most individuals with CP living into adulthood. Thus, there lack of evidence in adults CP, which includes paucity research examining mental health this population.To determine the risk depression and anxiety compared an age-, sex-, practice-matched reference group without using primary care data.Retrospective longitudinal cohort study set UK care. Data were analyzed Cox proportional hazards regression analyses adjusted for...

10.1001/jamaneurol.2018.4147 article EN cc-by JAMA Neurology 2018-12-28

PReMiuM is a recently developed R package for Bayesian clustering using Dirichlet process mixture model. This model an alternative to regression models, non- parametrically linking response vector covariate data through cluster membership (Molitor, Papathomas, Jerrett, and Richardson 2010). The allows binary, categorical, count continuous response, as well discrete covariates. Additionally, predictions may be made the missing values covariates are handled. Several samplers label switching...

10.18637/jss.v064.i07 article EN cc-by Journal of Statistical Software 2015-01-01

Abstract Background Picoeukaryotes represent an important, yet poorly characterized component of marine phytoplankton. The recent genome availability for two species Ostreococcus and Micromonas has led to the emergence picophytoplankton comparative genomics. Sequencing revealed many unexpected features about structure several hypotheses on biology physiology. Despite accumulation genomic data, little is known gene expression in eukaryotic picophytoplankton. Results We have conducted a...

10.1186/1471-2164-11-192 article EN cc-by BMC Genomics 2010-03-22

To compare mortality rates for cardiovascular disease, cancer, and respiratory disease between adults with cerebral palsy (CP) the general population.A cohort study was conducted using data from CP in England, identified through a primary care set (the Clinical Practice Research Datalink), linked on death registrations Office National Statistics. Cause of categorized according to International Classification Diseases codes. Standardized ratios (SMRs) were calculated population, adjusted age,...

10.1111/dmcn.14176 article EN Developmental Medicine & Child Neurology 2019-02-06

Research indicates that multiple outdoor air pollutants and adverse neighborhood conditions are spatially correlated. Yet health risks associated with concurrent exposure to pollution mixtures clustered factors remain underexplored. Statistical models assess the effects from pollutant limited, due problems of collinearity between area-level covariates, increases in covariate dimensionality. Here we identify profiles contextual within Los Angeles (LA) County. We then relate these term low...

10.1016/j.envint.2016.02.011 article EN cc-by Environment International 2016-02-16

Twenty-nine teams involving 61 analysts used the same dataset to address research question: whether soccer referees are more likely give red cards dark skin toned players than light players. Analytic approaches varied widely across teams, and estimated effect sizes ranged from 0.89 2.93 in odds ratio units, with a median of 1.31. Twenty (69%) found statistically significant positive nine (31%) observed non-significant relationship. Overall 29 different analyses 21 unique combinations...

10.31234/osf.io/qkwst article EN 2017-04-24

Air pollution epidemiological studies suggest that elevated exposure to fine particulate matter (PM2.5) is associated with higher prevalence of term low birth weight (TLBW). Previous have generally assumed the exposure-response PM2.5 on TLBW be same throughout a large geographical area. Health effects related exposures, however, may not uniformly distributed spatially, creating need for explicitly investigate spatial distribution relationship between individual-level and TLBW. Here, we...

10.1016/j.envres.2015.06.044 article EN cc-by-nc-nd Environmental Research 2015-07-18

Abstract By drawing on large-scale online data we are able to construct and analyze the time-varying worldwide network of professional relationships among start-ups. The nodes this represent companies, while links model flow employees associated transfer know-how across companies. We use centrality measures assess, at an early stage, likelihood long-term positive economic performance a start-up. find that start-up has predictive power by using can provide valuable recommendations, sometimes...

10.1038/s41598-019-57209-w article EN cc-by Scientific Reports 2020-01-15

We consider the question of Markov chain Monte Carlo sampling from a general stick-breaking Dirichlet process mixture model, with concentration parameter [Formula: see text]. This paper introduces Gibbs algorithm that combines slice approach Walker (Communications in Statistics - Simulation and Computation 36:45-54, 2007) retrospective Papaspiliopoulos Roberts (Biometrika 95(1):169-186, 2008). Our is implemented as efficient open source C++ software, available an R package, based on blocking...

10.1007/s11222-014-9471-3 article EN cc-by Statistics and Computing 2014-05-02

Airborne particles are a complex mix of organic and inorganic compounds, with range physical chemical properties. Estimation how simultaneous exposure to air affects the risk adverse health response represents challenge for scientific research quality management. In this paper, we present Bayesian approach that can tackle problem within framework time series analysis.We used Dirichlet process mixture models cluster points similar multipollutant profiles, while adjusting seasonal cycles,...

10.1016/j.envint.2015.02.010 article EN cc-by Environment International 2015-03-19

Summary The paper investigates the dependences between levels of severity road traffic accidents, accounting at same time for spatial and temporal correlations. study analyses accidents data ward level in England over period 2005–2013. We include our model multivariate spatially structured unstructured effects to capture severities, within a Bayesian hierarchical formulation. also component we carry out an extensive comparison. results show important associations both downward trend is...

10.1111/rssa.12178 article EN Journal of the Royal Statistical Society Series A (Statistics in Society) 2016-01-27

To compare the incidence of noncommunicable diseases between adults with and without cerebral palsy (CP).A cohort study was conducted using primary care data from Clinical Practice Research Datalink. Cox models, stratified by matched set adjusted for potential confounders, were fitted to risk any disease, cancer, cardiovascular type 2 diabetes mellitus, respiratory disease CP.The analysis included 1,705 CP 5,115 age-, sex-, general practice-matched CP. There evidence analyses that had 75%...

10.1212/wnl.0000000000008199 article EN cc-by-nc-nd Neurology 2019-08-29

People with cerebral palsy (CP) may be at increased risk of musculoskeletal conditions due to various factors including malnutrition and abnormal levels skeletal loading. This study aimed compare the incidence osteoporosis, osteoarthritis inflammatory diseases between adults without CP.A population based cohort was conducted using data from Clinical Practice Research Datalink collected 1987 2015. Adults CP were matched for age, sex general practice. Cox models, stratified by set adjusted...

10.1016/j.bone.2019.05.007 article EN cc-by Bone 2019-05-09

The picoeukaryotic alga Ostreococcus tauri (Chlorophyta) belongs to the widespread group of marine prasinophytes. Despite its ecological importance, little is known about metabolism this alga.In work, changes in metabolome were quantified when O. was grown under alternating cycles 12 h light and darkness.Algal analyzed by gas chromatography-mass spectrometry. Using fluorescence-activated cell sorting, bacteria associated with depleted below 0.1% total cells at time metabolic profiling.Of 111...

10.1007/s11306-017-1203-1 article EN cc-by Metabolomics 2017-04-17

IntroductionHousehold overcrowding is an important determinant of health and associated with adverse child health, educational social outcomes. ObjectivesWe aimed to determine whether households dependent children were more likely be overcrowded after taking into account household ethnicity housing tenure in urban, ethnically diverse, disadvantaged London population by pseudonymously linking property data. MethodsWe used pseudonymised Unique Property Reference Numbers link electronic records...

10.23889/ijpds.v10i1.2408 article EN cc-by International Journal for Population Data Science 2025-01-23

Household overcrowding is an important determinant of health and associated with adverse child health, educational social outcomes. We aimed to determine whether households dependent children were more likely be overcrowded after taking into account household ethnicity housing tenure in urban, ethnically diverse, disadvantaged London population by pseudonymously linking property data. used pseudonymised Unique Property Reference Numbers link electronic records Energy Performance Certificate...

10.23889/ijpds.v10i2.2408 article EN PubMed 2025-01-01

In this work we present a statistical approach to distinguish and interpret the complex relationship between several predictors response variable at small area level, in presence of (i) high correlation (ii) spatial for response. Covariates which are highly correlated create collinearity problems when used standard multiple regression model. Many methods have been proposed literature address issue. A very common is an index aggregates all variables interest. For example, it well known that...

10.1016/j.sste.2016.04.003 article EN cc-by Spatial and Spatio-temporal Epidemiology 2016-04-30

Abstract Trees are carbon dioxide sinks and major producers of terrestrial biomass with distinct seasonal growth patterns. Circadian clocks enable the coordination physiological biochemical temporal activities, optimally regulating multiple traits including growth. To dissect clock's role in growth, we analysed Populus tremula × P. tremuloides trees impaired clock function due to down‐regulation central components. late elongated hypocotyl ( lhy‐10 ) trees, which expression LHY1 LHY2 is...

10.1111/pce.13185 article EN cc-by Plant Cell & Environment 2018-03-09

Abstract Background A common characteristic of environmental epidemiology is the multi-dimensional aspect exposure patterns, frequently reduced to a cumulative for simplicity analysis. By adopting flexible Bayesian clustering approach, we explore risk function linking history disease. This approach applied here study relationship between different smoking characteristics and lung cancer in framework population based case control study. Methods Our includes 4658 males (1995 cases, 2663...

10.1186/1471-2288-13-129 article EN cc-by BMC Medical Research Methodology 2013-10-23

<h3>Background</h3> The association between lung cancer and occupational exposure to organic solvents is discussed. Since different are often used <i>simultaneously</i>, it difficult assess the role of individual substances. <h3>Objectives</h3> present study focused on an in-depth investigation potential risk a large group solvents, taking into account well-known factors for cancer, tobacco smoking asbestos. <h3>Methods</h3> We analysed data from Investigation environmental causes...

10.1136/oemed-2015-103177 article EN cc-by-nc Occupational and Environmental Medicine 2016-02-23

To investigate long-term associations between metal components of particulate matter (PM) and mortality lung cancer incidence.Small area (ecological) study.Population living in all wards (~9000 individuals per ward) the London Oxford England, comprising 13.6 million individuals.We used land use regression models originally Transport related Air Pollution Health Impacts-Integrated Methodologies for Assessing Particulate Matter study to estimate exposure copper, iron zinc ambient air PM. We...

10.1136/bmjopen-2019-030140 article EN cc-by BMJ Open 2019-11-01
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