Claire M A Haworth

Claire M A Haworth
University of Bristol | UB · School of Experimental Psychology

BA, MSc, PhD

About

178
Publications
43,717
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8,226
Citations
Additional affiliations
June 2013 - April 2015
The University of Warwick
Position
  • Reader in Behavioural Genetics
January 2007 - December 2012
King's College London

Publications

Publications (178)
Article
Full-text available
Background In recent decades, China has experienced dramatic changes to its social and economic environment, which has affected the distribution of wellbeing across its citizens. While several studies have investigated individual level predictors of wellbeing in the Chinese population, less research has been done looking at contextual effects. This...
Article
Full-text available
Introduction: Digital footprint records - the tracks and traces amassed by individuals as a result of their interactions with the internet, digital devices and services - can provide ecologically valid data on individual behaviours. These could enhance longitudinal population study databanks; but few UK longitudinal studies are attempting this. Wh...
Article
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Previous studies suggest an individual’s risk of depression following adversity may be moderated by their genetic liability. No study, however, has examined peer victimisation, an experience repeatedly associated with mental illness. We explore whether the negative mental health outcomes following victimisation can be partly attributed to genetic f...
Article
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Background Digital phenotypes such as social media data are increasingly being used to infer supposed trends in population mental health and wellbeing. These methods are attractive for their potential scale and timeliness. However, many methodological aspects need investigation to establish if these approaches could be applied successfully. We aim...
Article
Full-text available
Autistic traits are influenced by both genetic and environmental factors, and are known to vary geographically in prevalence. But to what extent does their aetiology also vary from place to place? We applied a novel spatial approach to data on autistic traits from two large twin studies, the Child and Adolescent Twin Study in Sweden (CATSS; N = 16,...
Article
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Not all victims of bullying go on to develop problems with their mental health. To understand factors that may confer resilience, many have explored the moderating role of protective factors in relation to mental illness. No study to date, however, has considered moderators of adult wellbeing following victimisation. We explore 14 protective factor...
Article
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Background Peer victimisation is a common occurrence and has well-established links with a range of psychiatric problems in adulthood. Significantly less is known however, about how victimisation influences positive aspects of mental health such as wellbeing. The purpose of this study was therefore to assess for the first time, whether peer victimi...
Preprint
Full-text available
Background: Peer victimisation is a common occurrence in schools and has well-established links with a range of psychiatric problems in adulthood. Significantly less is known however, about how victimisation influences positive aspects of mental health such as wellbeing. The purpose of this study was therefore to assess for the first time, whether...
Preprint
Full-text available
Background: Peer victimisation is a common occurrence and has well-established links with a range of psychiatric problems in adulthood. Significantly less is known however, about how victimisation influences positive aspects of mental health such as wellbeing. The purpose of this study was therefore to assess for the first time, whether peer victim...
Preprint
Full-text available
Background: Peer victimisation is a common occurrence and has well-established links with a range of psychiatric problems in adulthood. Significantly less is known however, about how victimisation influences positive aspects of mental health such as wellbeing. The purpose of this study was therefore to assess for the first time, whether peer victim...
Article
Full-text available
Background: Cohort studies gather huge volumes of information about a range of phenotypes but new sources of information such as social media data are yet to be integrated. Participant’s long-term engagement with cohort studies, as well as the potential for their social media data to be linked to other longitudinal data, may give participants a uni...
Preprint
Full-text available
Background Autistic traits are influenced by both genetic and environmental factors, and are known to vary geographically in prevalence. But to what extent does their aetiology also vary from place to place? Methods We applied a novel spatial approach to data on autistic traits from two large twin studies, the Child and Adolescent Twin Study in Sw...
Article
Full-text available
Background: Cohort studies gather huge volumes of information about a range of phenotypes but new sources of information such as social media data are yet to be integrated. Participant’s long-term engagement with cohort studies, as well as the potential for their social media data to be linked to other longitudinal data, could provide novel advance...
Article
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The COllaborative project of Development of Anthropometrical measures in Twins (CODATwins) project is a large international collaborative effort to analyze individual-level phenotype data from twins in multiple cohorts from different environments. The main objective is to study factors that modify genetic and environmental variation of height, body...
Article
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Objectives: To investigate whether the association between subjective wellbeing (subjective happiness and life satisfaction) and cardiometabolic health is causal. Design: Two sample, bidirectional mendelian randomisation study. Setting: Genetic data taken from various cohorts comprised of the general population (mostly individuals of European...
Article
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Background: The genetic architecture of birth size may differ geographically and over time. We examined differences in the genetic and environmental contributions to birthweight, length and ponderal index (PI) across geographical-cultural regions (Europe, North America and Australia, and East Asia) and across birth cohorts, and how gestational age...
Preprint
Full-text available
Objectives To investigate whether the association between subjective wellbeing (subjective happiness and life satisfaction) and physical health is causal. Design We conducted two-sample bidirectional Mendelian randomisation between subjective wellbeing and six measures of physical health: coronary artery disease, myocardial infarction, total chole...
Article
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Background: There is evidence that birth size is positively associated with height in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment. Aim: To analyze the associations of birth weight, length and ponderal index with height from infancy through adulthood within mono- and dizygotic tw...
Article
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Interventions rarely have a universal effect on all individuals. Reasons ranging from participant characteristics, context and fidelity of intervention completion could cause some people to respond more positively than others. Understanding these individual differences in intervention response may provide clues to the mechanisms behind the interven...
Data
Complete results for interaction model for wellbeing response. (DOCX)
Data
Basic model for wellbeing response using cases with complete predictor information. (DOCX)
Data
Basic model for mental health response using cases with complete predictor information. (DOCX)
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Fit statistics for mental health outcome models. (DOCX)
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Difference between drop outs and non dropouts. (DOCX)
Data
Basic model for wellbeing response. (DOCX)
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Variance inflation factors of potential predictors. (DOCX)
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Exploratory t-to-enter statistics for potential level 2 predictors of wellbeing change. (DOCX)
Data
Fit statistics for wellbeing outcome models. (DOCX)
Data
Basic model for mental health response. (DOCX)
Data
Exploratory t-to-enter statistics for potential level 2 predictors of mental health change. (DOCX)
Data
Complete results for interaction model for mental health response. (DOCX)
Data
Complete results for interaction model for wellbeing response, not including effort measures as predictors. (DOCX)
Data
Complete results for interaction model for mental health response, not including effort measures as predictors. (DOCX)
Data
Power curve of interaction effect of agreeableness during the intervention phase for wellbeing outcome. (DOCX)
Article
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Late adolescence is a crucial, but underexplored, developmental stage with respect to the aetiology of social support. These individuals are experiencing many major life changes and social support can help them adjust to the associated environmental stressors of this time. Using 1,215 18-year-old twin pairs from the Twins Early Development Study, w...
Article
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Some life events appear heritable due to the genetic influence on related behaviours. Shared genetic influence between negative behaviours and negative life events has previously been established. This study investigated whether subjective wellbeing and positive life events were genetically associated. Participants in the Twins Early Development St...
Article
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Individual differences in number sense correlate with mathematical ability and performance, although the presence and strength of this relationship differs across studies. Inconsistencies in the literature may stem from heterogeneity of number sense and mathematical ability constructs. Sample characteristics may also play a role as changes in the r...
Article
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Objective Advanced paternal age (APA) at conception has been linked with autism and schizophrenia in offspring, neurodevelopmental disorders that affect social functioning. The current study explored the effects of paternal age on social development in the general population. Method We used multilevel growth modelling to investigate APA effects on...
Data
Table S1. Means (SD) and ANOVA results. Table S2. Twin intraclass correlations split by sex and zygosity (95% confidence interval). Table S3. Estimates of standardized variance components (95% confidence intervals) of genetic and environmental influence from the Cholesky decomposition. Table S4. Genetic and environmental correlations and bivaria...
Article
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Online media use has become an increasingly important behavioral domain over the past decade. However, studies into the etiology of individual differences in media use have focused primarily on pathological use. Here, for the first time, we test the genetic influences on online media use in a UK representative sample of 16 year old twins, who were...
Data
Factor analyses on media use variables. (DOCX)
Data
Total variance explained in media use factor analysis. (DOCX)
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Factor analyses on Facebook use variables. (DOCX)
Data
Sex limitation sub-model comparisons: Factorized educational screen time. (DOCX)
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Portion of questionnaire assessing Facebook use. (DOCX)
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Portion of questionnaire assessing online media use. (DOCX)
Data
Total variance explained in Facebook factor analysis. (DOCX)
Data
Sex limitation model fitting results with 95% confidence intervals, depicting A, C and E estimates separately for males and females. (DOCX)
Data
Sex limitation sub-model comparisons: Factorized entertainment screen time. (DOCX)
Data
Sex limitation sub-model comparisons: Facebook Factor. (DOCX)
Data
Proportion of time spent on different forms of media for total sample and across gender and zygosity. (DOCX)
Data
Sex limitation sub-model comparisons: Factorized gaming. (DOCX)
Article
Full-text available
Behavioral traits generally show moderate to strong genetic influence, with heritability estimates of around 50%. Some recent research has suggested that trust may be an exception because it is more strongly influenced by social interactions. In a sample of over 7,000 adolescent twins from the United Kingdom's Twins Early Development Study, we foun...
Article
In the version of this article initially published, one of the affiliations listed for author Maciej Trzaskowski, to the Department of Public Health, Faculty of Medicine, University of Split, Split, Croatia, was included in error. The correct affiliation for this author is the Queensland Brain Institute, University of Queensland, Brisbane, Queensla...
Article
Full-text available
Background: Both genetic and environmental factors are known to affect body mass index (BMI), but detailed understanding of how their effects differ during childhood and adolescence is lacking. Objectives: We analyzed the genetic and environmental contributions to BMI variation from infancy to early adulthood and the ways they differ by sex and...
Article
Full-text available
Height variation is known to be determined by both genetic and environmental factors, but a systematic description of how their influences differ by sex, age and global regions is lacking. We conducted an individual-based pooled analysis of 45 twin cohorts from 20 countries, including 180,520 paired measurements at ages 1–19 years. The proportion o...
Article
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Genetic and environmental influences on complex traits can change in response to developmental and environmental contexts. Here we explore the impact of a positive activity intervention on the genetic and environmental influences on well-being and mental health in a sample of 750 adolescent twins. Twins completed a 10-week online well-being interve...
Data
Standardized Means (Standard Deviations) for Well-Being and Mental Health. (DOCX)
Data
Phenotypic Correlations Within Well-Being and Mental Health Across Time. (DOCX)
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Fit Statistics for Multilevel Models of Intervention Response. (DOCX)
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Intervention instructions: The text used in the intervention for both the control activities and the positive activities. (DOCX)
Article
The maintenance of normal body weight is disrupted in patients with anorexia nervosa (AN) for prolonged periods of time. Prior to the onset of AN, premorbid body mass index (BMI) spans the entire range from underweight to obese. After recovery, patients have reduced rates of overweight and obesity. As such, loci involved in body weight regulation m...
Article
Full-text available
Very few genetic variants have been associated with depression and neuroticism, likely because of limitations on sample size in previous studies. Subjective well-being, a phenotype that is genetically correlated with both of these traits, has not yet been studied with genome-wide data. We conducted genome-wide association studies of three phenotype...