Expertise
Statistics; Randomised Controlled Trials; Cluster Randomised Trials
Biography
Obi has been a medical statistician since 1995. He the statistical lead in PenARC and teaches on its Making Sense of Evidence workshops.
His main area of methodological interest is the design and conduct of cluster randomised controlled trials. He has contributed to multidisciplinary research on improving child mental health and wellbeing and the provision of primary/community care. His ongoing collaborations include a Wellcome Trust funded cross-national trial of an online support intervention for child anxiety problems (led by Professor Cathy Creswell, University of Oxford) and an NIHR HTA-funded trial of the effectiveness of oral nutritional supplements in older adults with malnutrition in the care home setting (led by Professor Mary Hickson, University of Plymouth). He is the senior statistician in the Oxford Centre for Emerging Minds Research led Professor Cathy Creswell.
He is a panel member for the NIHR Programme Grants for Applied Research (PGfAR) funding scheme and statistical advisor to and member of the editorial board for the British Journal of General Practice and BJGP Open.
Projects
- RecoverED Study
- Maintaining Independence in People with Dementia who have had a fall: a pilot cluster randomised controlled trial (the Maintain study)
- A new, novel walking frame for older adults in community setting- FORWARD
- PhD Project – Cluster randomised trials for evaluating school-based interventions to improve physical health, mental health and behavioural outcomes in pupils
- D-PACT: Dementia – PersonAlised Care Team
- Improving the mental health of children and young people with long term conditions
- The MYRIAD Project: Mindfulness and Resilience in Adolescence
- Supporting Teachers and Children in Schools (STARS)
- Effectiveness of interventions to reduce ordering of thyroid function tests: a systematic review
- The Care Home Implementation and Knowledge Mobilisation Project (CHIK-P)
- Patient-initiated clinics (PIC) for people with long-term conditions
Publications
- A rehabilitation intervention to improve recovery after an episode of delirium in adults over 65 years (RecoverED): study protocol for a multi-centre, single-arm feasibility study
- Investigation of the Factor Structure and Differential Item Functioning of the Child and Adolescent Mindfulness Measure (CAMM): Analysis of Data from a School-Based Cluster Randomised Controlled Trial
- Annual Research Review: The impact of Covid-19 on psychopathology in children and young people worldwide: systematic review of studies with pre- and within-pandemic data
- Systematic reviews of convalescent plasma in COVID-19 continue to be poorly conducted and reported: a systematic review
- School-based mindfulness training in early adolescence: what works, for whom and how in the MYRIAD trial?
- Locating and testing the healthy context paradox: examples from the INCLUSIVE trial
- Minimising young children’s anxiety through schools (MY-CATS): protocol for a cluster randomised controlled trial to evaluate the effectiveness and cost-effectiveness of an online parent-led intervention compared with usual school practice for young children identified as at risk for anxiety disorders
- Differences in awareness of positive and negative age-related changes accounting for variability in health outcomes
- Mental health and school absenteeism in children with long-term physical conditions: A secondary analysis of the BritishChild and Adolescent Mental Health Surveys 2004 and 2007
- Exploring awareness of age-related changes among over 50s in the UK: findings from the PROTECT study
- Cross-Sectional and Longitudinal Associations between Subjective Sleep Difficulties and Self-Perceptions of Aging
- Characteristics and practices of school-based cluster randomised controlled trials for improving health outcomes in pupils in the United Kingdom: a methodological systematic review
- Healthy Parent Carers: feasibility randomised controlled trial of a peer-led group-based health promotion intervention for parent carers of disabled children
- Cross-sectional association between objective cognitive performance and perceived age-related gains and losses in cognition
- The longitudinal relationship between child emotional disorder and parental mental health in the British Child and Adolescent Mental Health surveys 1999 and 2004
- Codesign and development of a primary school based pathway for child anxiety screening and intervention delivery: a protocol, mixed-methods feasibility study
- Attainment, attendance and school difficulties in UK primary school children with probable ADHD.
- Update to the effectiveness and cost-effectiveness of a mindfulness training programme in schools compared with normal school provision (MYRIAD): study protocol for a randomised controlled trial.
- The Role of Schools in Early Adolescents’ Mental Health: Findings from the MYRIAD Study.
- The association between thrombocytosis and subtype of lung cancer: a systematic review and meta-analysis.
- Supporting Teachers and Children in Schools (STARS)
- Characteristics and practices of school-based cluster randomised controlled trials for improving health outcomes in pupils in the UK: a systematic review protocol
- Differences Between Arms in Blood Pressure Readings Indicate Likelihood of Vascular Risk and Death
- Relationship between self-perceptions of aging and ‘living well’ among people with mild-to-moderate dementia: Findings from the IDEAL Programme.
- The cross-sectional relationship between pain and awareness of age-related changes.
- International relevance of Two Measures of Awareness of Age-Related Change (AARC).
- The effectiveness of a mentoring program for children aged 5-11 years: results from a randomized controlled trial
- The effectiveness of a therapeutic parenting program for children aged 6-11 years with behavioral or emotional difficulties: results from a randomised controlled trial
- Patient-initiated appointment systems for adults with chronic conditions in secondary care
- A cross-sectional study on the prevalence of illness in coastal bathers compared to non-bathers in England and Wales: Findings from the Beach User Health Survey
- Healthy Parent Carers peer-led group-based health promotion intervention for parent carers of disabled children: protocol for a feasibility study using a parallel group randomised controlled trial design
- Surgical versus conservative management of ankle fractures in adults: a systematic review and meta-analysis
- Does a simple web-based intervention facilitate the articulation of patients’ unvoiced agenda for a consultation with their diabetologists? A qualitative study
- Improving the mental health of children and young people with long term conditions: Linked evidence syntheses
- Interventions to improve the mental health of children and young people with long-term physical conditions: linked evidence syntheses
- The reliability and validity of the Pupil Behaviour Questionnaire: a child classroom behaviour assessment tool
- Emotional disorder and absence from school: Findings from the 2004 British Child and Adolescent Mental Health survey European Child & Adolescent Psychiatry
- The Incredible Years Teacher Classroom Management programme and its impact on its teachers’ professional self-efficacy, work-related stress and general well-being: results from the STARS randomised controlled trial
- Resumption of attention-deficit hyperactivity disorder medication in early adulthood: findings from a UK primary care prescribing study.
- School-based interventions for attention-deficit/hyperactivity disorder: a systematic review with multiple synthesis methods.
- Stroke and dementia risk:A systematic review and meta analysis
- Associations between maternal responsive linguistic input and child language performance at age 4 in a community based sample of slow-to-talk toddlers
- Feasibility and Acceptability of Mindfulness-Based Cognitive Therapy Compared with Mindfulness-Based Stress Reduction and Treatment as usual in People with Depression and Cardiovascular Disorders: A three-arm Randomised Controlled Trial
- The effectiveness and cost effectiveness of the Incredible Years Teacher Classroom Management programme in primary school children: results of the STARS cluster randomised controlled trial
- Enhanced psychological care in cardiac rehabilitation services for patients with new-onset depression: the CADENCE feasibility study and pilot RCT
- Interventions for reducing unplanned paediatric admissions: an observational study in one hospital
- The effectiveness of Chance UK’s mentoring programme in improving behavioural and emotional outcomes in primary school children with behavioural difficulties: study protocol for a randomised controlled trial
- Is it safe to go back in the water? A systematic review and meta-analysis of the risk of acquiring infections from recreational exposure to seawater
- The effectiveness of the Inspiring Futures parenting programme in improving behavioural and emotional outcomes in primary school children with behavioural or emotional difficulties: study protocol for a randomised controlled trial
- Exposure to and colonisation by antibiotic-resistant E. coli in UK coastal water users: environmental surveillance, exposure assessment, and epidemiological study (Beach Bum Survey)
- Predictors of word-reading ability in 7-year-olds: analysis of data from a U.K. cohort study
- Preventing preschool mental health problems: Population-based cluster randomised controlled trial
- The effectiveness of community-based coordinating interventions in dementia care: a meta-analysis and subgroup analysis of intervention components
- Cluster randomised trial of a school-community child health promotion and obesity prevention intervention: findings from the evaluation of fun ‘n healthy in Moreland!
- The association between child and adolescent emotional disorder and poor attendance at school: a systematic review protocol
- Prescribing of medication for attention deficit hyperactivity disorder among young people in the Clinical Practice Research Datalink 2005-2013: analysis of time to cessation
- A directly comparative two-gate case–control diagnostic accuracy study of the pure tone screen and HearCheck screener tests for identifying hearing impairment in school children
- Examining the Psychological and Social Impact of Relative Age in Primary School Children: A Cross-Sectional Survey
- Clinical relevance of thrombocytosis in primary care: a prospective cohort study of cancer incidence using UK electronic medical records and cancer registry data
- The effectiveness and cost-effectiveness of a mindfulness training programme in schools compared with normal school provision (MYRIAD): study protocol for a randomised controlled trial
- N of 1 trials and the optimal individualisation of drug treatments: a systematic review protocol
- Temperament and early stuttering development: Cross-sectional findings from a community cohort
- A pre-consultation web-based tool to generate an agenda for discussion in diabetes outpatient clinics to improve patient outcomes (DIAT): a feasibility study
- Coronary artery bypass graft surgery and dementia risk in the Cardiovascular Health Study
- How I Feel About My School’: The construction and validation of a measure of wellbeing at school for primary school children
- Impact of a Brief Group Intervention to Enhance Parenting and the Home Learning Environment for Children Aged 6–36 Months: a Cluster Randomised Controlled Trial
- How useful is thrombocytosis in predicting an underlying cancer in primary care?: a systematic review.
- Attention restoration theory: a systematic review of the attention restoration potential of exposure to natural environments
- Variation in ambulance call rates for care homes in Torbay, UK
- Utility-based quality of life in mothers of children with behaviour problems: a population-based study
- Behavioural activation written self-help to improve mood, wellbeing and quality of life in people with dementia supported by informal carers (PROMOTE): study protocol for a single-arm feasibility study
- Techniques for Modifying Impulsive Processes Associated with Unhealthy Eating: A Systematic Review
- Manual development and pilot randomised controlled trial of Mindfulness-based Cognitive Therapy versus usual care for parents with a history of depression
- Enhancing the early home learning environment through a brief group parenting intervention: study protocol for a cluster randomised controlled trial
- Diagnostic accuracy of high-definition CT coronary angiography in high-risk patients
- A programme of studies including assessment of diagnostic accuracy of school hearing screening tests and a cost-effectiveness model of school entry hearing screening programmes
- Vitamin D and memory decline: two population-based prospective studies
- Assessing the effectiveness of enhanced psychological care for patients with depressive symptoms attending cardiac rehabilitation compared with treatment as usual (CADENCE): A study protocol for a pilot cluster randomised controlled trial and qualitative i
- Effectiveness and micro-costing of the KiVa school-based bullying prevention programme in Wales: study protocol for a pragmatic definitive parallel group cluster randomised controlled trial
- Implementing a patient-initiated review system for people with rheumatoid arthritis: a prospective, comparative service evaluation
- Tests for screening for hearing loss in children about to start school (Protocol)
- Two-year outcomes of a population-based intervention for preschool language delay: An RCT
- Mental health related contact with education professionals in the British Child and Adolescent Mental Health Survey 2004
- Children’s contact with people with disabilities and their attitudes towards disability: a cross-sectional study
- Non-pharmacological interventions for attention-deficit/hyperactivity disorder (ADHD) delivered in school settings: systematic reviews of quantitative and qualitative research
- The feasibility of the Incredible Years Teacher Classroom Management course as a Public Health Intervention.
- Teaching Classroom Management – A Potential Public Health Intervention?
- Age and gender variations in cancer diagnostic intervals in 15 cancers: analysis of data from the UK Clinical Practice Research Datalink
- Ethnic differences in patients’ preferences for prostate cancer investigation: a vignette-based survey in primary care.
- Understanding influences on teacher’s uptake and use of behaviour management strategies: Process Evaluation Protocol for the Supporting Teachers And childRen in Schools (STARS) randomised controlled trial
- Speech sound disorder at 4 years: prevalence, co-morbidities and predictors in a community cohort of children
- School exclusion in children with psychiatric disorder or impairing psychopathology: A systematic review
- The Devon Active Villages Evaluation (DAVE) trial of a community-level physical activity intervention in rural south-west England: a stepped wedge cluster randomised controlled trial
- Interarm blood pressure difference in people with diabetes: measurement and vascular and mortality implications: a cohort study.
- Block & replace regime versus titration regime of antithyroid drugs for the treatment of Graves’ disease: a retrospective observational study
- Multiple component interventions for preventing falls and fall-related injuries among older people: systematic review and meta-analysis
- Psychiatric disorder or impairing psychology in children who have been excluded from school: A systematic review
- A pilot randomised controlled trial of a preconsultation web-based intervention to improve the care quality and clinical outcomes of diabetes outpatients (DIAT)
- Variability in thyroid function test requests across general practices in South-west England
- Effectiveness of mealtime interventions on nutritional outcomes for the elderly living in residential care: A systematic review and meta-analysis
- Effectiveness of the Mindfulness in Schools Programme: non-randomised controlled feasibility study
- Prevalence of parent-reported ASD and ADHD in the UK: findings from the Millennium Cohort Study
- Thromboelastography (TEG) and thromboelastometry (ROTEM) for trauma induced coagulopathy in adult trauma patients with bleeding
- Who gets help for preschool communication problems? Data from a prospective community study
- Parent-focused intervention to reduce infant obesity risk behaviors: a randomized trial
- Expanding Children’s Food Experiences: The Impact of a School-Based Kitchen Garden Program
- Computer use and letter knowledge in pre-school children: A population-based study
- Peer support for parents of children with chronic disabling conditions: a systematic review of quantitative and qualitative studies
- Cascade carrier testing after a child is diagnosed with cystic fibrosis through newborn screening: investigating why most relatives do not have testing
- Physical Activity and 3-Year BMI Change in Overweight and Obese Children
- The Children’s Attention Project: a community-based longitudinal study of children with ADHD and non-ADHD controls
- Four-year-old outcomes of a universal infant-toddler shared reading intervention: the let’s read trial
- Development of a fragile X syndrome (FXS) knowledge scale: towards a modified multidimensional measure of informed choice for FXS population carrier screening
- Five-year follow-up of harms and benefits of behavioral infant sleep intervention: randomized trial
- Outcomes at six years of age for children with infant sleep problems: longitudinal community-based study
- Supporting teachers and children in schools: the effectiveness and cost-effectiveness of the incredible years teacher classroom management programme in primary school children: a cluster randomised controlled trial, with parallel economic and process evalu
- The Devon Active Villages Evaluation (DAVE) trial: study protocol of a stepped wedge cluster randomised trial of a community-level physical activity intervention in rural southwest England
- Improving outcomes of preschool language delay in the community: protocol for the Language for Learning randomised controlled trial
- Development of children’s internalising and externalising problems from infancy to five years of age
- Preventing mental health problems in children: the Families in Mind population-based cluster randomised controlled trial
- Prevalence of eczema and food allergy is associated with latitude in Australia
- Relationship between symptoms of attention-deficit/hyperactivity disorder and family functioning: a community-based study
- Association of a difference in systolic blood pressure between arms with vascular disease and mortality: A systematic review and meta-analysis
- A brief sleep intervention improves outcomes in the school entry year: a randomized controlled trial
- Predictors of parent-reported attention-deficit/hyperactivity disorder in children aged 6-7 years: a national longitudinal study
- Risk factors for childhood mental health symptoms: national longitudinal study of Australian children
- Outcomes of population based language promotion for slow to talk toddlers at ages 2 and 3 years: Let’s Learn Language cluster randomised controlled trial
- Objectively measured physical activity and the subsequent risk of incident dysglycemia: the Australian Diabetes, Obesity and Lifestyle Study (AusDiab)
- Profiles of language development in pre-school children: a longitudinal latent class analysis of data from the Early Language in Victoria Study
- Outcomes of a universal infant-toddler shared reading intervention by 2 years of age: the Let’s Read Trial
Other team members
