
William Hollingworth- University of Bristol
William Hollingworth
- University of Bristol
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419
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Publications
Publications (419)
Objectives
Despite being a common side effect of stoma surgery, little is known about the health-related quality-of-life (HRQoL) impact of parastomal hernia (PSH). We studied the association between HRQoL and self-reported PSH using data from the large CIPHER prospective cohort study of patients living with a stoma.
Methods
Over 12 months, HRQoL w...
Background:
Oncoplastic breast-conserving surgery may be a better option than mastectomy, but high-quality comparative evidence is lacking. The aim of the ANTHEM study (ISRCTN18238549) was to explore clinical and patient-reported outcomes in a multicentre cohort of women offered oncoplastic breast-conserving surgery as an alternative to mastectomy...
Background
The COVID-19 pandemic has resulted in marked impacts on children’s physical activity, with large reductions in moderate-to-vigorous physical activity (MVPA) reported during lockdowns. Previous evidence showed children’s activity levels were lower and sedentary time higher immediately post-COVID lockdown, while there was little change in...
Background
Children’s physical activity in England is more dependent on active clubs after the COVID-19 pandemic. However, it is unclear how the COVID-19 pandemic and related cost-of-living crisis have impacted on active club participation, costs and provision. This mixed-methods natural experiment explored school-based and community-based active c...
Background
Restrictions due to the coronavirus disease 2019 (COVID-19) pandemic reduced physical activity provision for both children and their parents. Recent studies have reported decreases in physical activity levels during lockdown restrictions, but these were largely reliant on self-report methods, with data collected via unrepresentative self...
Background
Active-6 is exploring how the COVID-19 pandemic has impacted physical activity behaviour among Year 6 children (aged 10–11 years) and their parents in Southwest England. Initial findings from the Active-6 project have shown a 7–8 min decrease in moderate-to-vigorous physical activity and an increase in sedentary behaviour among children...
Background
The COVID-19 pandemic significantly impacted children’s physical activity. Recent evidence indicated children’s accelerometer-measured physical activity levels have, on average, returned to near pre-pandemic levels in 2022, though sedentary behaviour remains higher. However, insufficient physical activity levels among children continues...
Background: Effective and cost-effective treatments are not always optimally implemented. The benefit forgone due to sub-optimal implementation is often not considered or estimated. We use the economic concept of ‘incremental net monetary benefit’ (INMB) to demonstrate how this can be valued. This approach can inform decision-making when used to es...
Objective
To synthesize evidence of surgical treatment intensity, defined as a measure of the quantity of invasive procedures, received by patients in patients with cancer within a defined time period around the ‘end of life’ (EoL).
Background
Concern regarding overly ‘aggressive’ care or high health care utilization at the EoL, particularly in ca...
Background
General practice faces pressures because of increased demand and a shortage of GPs. Paramedics in general practice (PGPs) increasingly contribute to managing minor illnesses, conducting home visits, and providing urgent consultations.
Aim
To explore the impact of paramedic consultations on patient-reported experience, safe management, a...
Background
Physical activity is essential for long-term health, yet data from before the COVID-19 pandemic showed only 41% of 10- to 11-year-olds met the UK government’s physical activity recommendations. Children’s physical activity was limited during the national COVID-19 lockdowns. It is important to measure children’s physical activity in the r...
Background
Subthreshold depression is a risk factor for major depression and is associated with increased morbidity and mortality, especially in older adults. There is emerging evidence that digital interventions, including self-help interventions, may reduce depressive symptoms. We aimed to evaluate the effectiveness of a mobile messaging interven...
Background and objectives
Schools play a crucial role in facilitating physical activity among children, but the COVID-19 pandemic has affected both children’s physical activity and the school environment. It is essential to understand between-school differences in children’s physical activity post lockdown, to determine if and how the role of schoo...
Design
Parallel-group randomised controlled trial.
Methods
Participants
Adolescents aged 11–17 years, diagnosed with myalgic encephalomyelitis/chronic fatigue syndrome and with no local specialist treatment centre, were referred to a specialist service in South West England.
Interventions
Fatigue In Teenagers on the interNET in the National Heal...
Background
The COVID-19 lockdowns had negative effects on children’s and adults’ mental and physical health. There is, however, a paucity of research that explores differences in health-related quality of life (HRQL) and well-being over time after the COVID-19 lockdowns had been lifted. Furlough during lockdowns, increases in unemployment, and the...
Introduction
Low back pain (LBP) is the leading global cause of disability. Patients with moderate to severe LBP who respond positively to a diagnostic medial nerve branch block can be offered radiofrequency denervation (RFD). However, high-quality evidence on the effectiveness of RFD is lacking.
Methods and analysis
RADICAL (RADIofrequenCy denerv...
Background
Dupuytren’s contractures (DC) are fibrous cords under the skin of the hand that cause one or more fingers to curl gradually and irreversibly towards the palm. These contractures are usually painless but can cause a loss of hand function. Two treatments for Dupuytren’s contractures are widely used within the National Health Service (NHS)...
Background
Oncoplastic breast-conserving surgery may allow women with early breast cancer to avoid a mastectomy, but many women undergo more extensive surgery, even when breast-conserving options are offered. The aim of the ANTHEM qualitative study was to explore factors influencing women’s surgical decision-making for and against oncoplastic breas...
Objectives:
High variation in clinical practice may indicate uncertainty and potentially low-value care. Methods to identify low value care are often not well defined or transparent and can be time intensive. In this paper we explore the usefulness of variation analysis of routinely-collected data about surgical procedures in England to identify p...
Background: Oncoplastic breast conserving surgery (OPBCS) may allow women with breast cancer to avoid mastectomy, but many women continue to choose more extensive surgery even when breast conserving options are offered. Reasons for women’s procedure choices are unclear. The UK prospective multicentre ANTHEM study (ISRCTN18238549) aimed to explore t...
Background: Oncoplastic breast conserving surgery (OPBCS) may allow women with early breast cancer to avoid mastectomy leading to fewer complications and better quality of life. High quality comparative evidence, however, is lacking. The UK ANTHEM study (ISRCTN18238549) aimed to explore the feasibility of undertaking a large-scale multicentre study...
Objectives:
Depression is a prevalent mental health condition that also often affects older adults. The PROACTIVE psychosocial intervention was developed to reduce depressive symptomatology among older adults within primary care settings in Brazil. An important psychological marker that affects individuals' aging experience relates to how old peop...
Objective
This study investigated if hybrid oesophagectomy with minimally invasive gastric mobilization and thoracotomy enabled faster recovery than open surgery.
Methods
In eight UK centres, this pragmatic RCT recruited patients for oesophagectomy to treat localized cancer. Participants were randomly allocated to hybrid or open surgery, stratifie...
Scalable solutions to treat depression in older adults in low-resourced settings are urgently needed. The PRODIGITAL-D pragmatic, single-blind, two-arm, individually randomized controlled trial assessed the effectiveness of a mobile messaging psychosocial intervention in improving depressive symptomatology among older adults in socioeconomically de...
Resource-use measurement is integral for assessing cost-effectiveness within trial-based economic evaluations. Methods for gathering resource-use data from participants are not well developed, with questionnaires typically produced for each trial and rarely validated. The healthcare module of a generic, modular resource-use measure, designed for co...
The MAGENTA pragmatic parallel groups randomized controlled trial compared graded exercise therapy (GET) with activity management (AM) in treating paediatric myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS). Children aged 8-17 years with mild/moderate ME/CFS and presenting to NHS specialist paediatric services were allocated at random...
Physical activity is important for children’s health, but moderate to vigorous physical activity (MVPA) declines with age. COVID-19 lockdowns resulted in reduced MVPA and increased sedentary time among children. Characterising children’s activity patterns may help identify groups who are most likely to be inactive post-lockdown. Data were combined...
Background: Subthreshold depression is a risk factor for major depression and is associated with increased morbidity and mortality, especially in poorly resourced settings. There is emerging evidence that digital interventions may be effective at improving depressive symptoms in High Income Countries but not Low- and Middle-Income settings. We aime...
Background
Children’s physical activity in England is more dependent on active clubs after the COVID-19 pandemic. However, it is unclear how the COVID-19 pandemic and related cost-of-living crisis have impacted on active club participation, costs and provision. This mixed-methods natural experiment explored school-based and community-based active c...
Objective:
To compare two quality improvement (QI) interventions to improve antenatal magnesium sulphate (MgSO4 ) uptake in preterm births for the prevention of cerebral palsy.
Design:
Unblinded cluster randomised controlled trial.
Setting:
Academic Health Sciences Network, England, 2018.
Sample:
Maternity units with ≥10 preterm deliveries a...
Background:
Post-haemorrhagic ventricular dilatation (PHVD) is commonly seen in extremely preterm babies, carries significant morbidity, and may cause neonatal mortality. There is a lack of literature on the subsequent health-related quality of life (HRQoL) in childhood. The aim of this work was to assess the quality of life of preterm babies afte...
Background
Health systems are under pressure to maintain services within limited resources. The Evidence-Based Interventions (EBI) programme published a first list of guidelines in 2019, which aimed to reduce inappropriate use of interventions within the NHS in England, reducing potential harm and optimising the use of limited resources. Seventeen...
Aims
To assess the real-world evidence for flash glucose monitoring (Abbott FreeStyle Libre) for children with type 1 diabetes in terms of glucose control, secondary healthcare resources and costs.
Research design and methods
We conducted a controlled before and after study (approximately 12 months before and after) using routinely collected healt...
Importance: There is an urgent need to provide scalable solutions to treat depression amongst older adults in poorly resourced settings.
Objective: To assess the effectiveness of the Viva Vida digital psychosocial intervention for the treatment of depression among older adults.
Design: Pragmatic, two-arm, individually randomised controlled trial wi...
Background
One in seven UK children have obesity when starting school, with higher prevalence associated with deprivation. Most pre-school children do not meet UK recommendations for physical activity and nutrition. Formal childcare settings provide opportunities to deliver interventions to improve nutritional quality and physical activity to the m...
Background:
The COVID-19 pandemic significantly impacted children's physical activity. Recent evidence indicated children's accelerometer-measured physical activity levels have, on average, returned to near pre-pandemic levels in 2022, though sedentary behaviour remains higher. However, insufficient physical activity levels among children continue...
Background:
Immediate breast reconstruction after mastectomy can improve the quality of life for women with breast cancer and rates are increasing. Long-term inpatient costs of care were estimated to understand the impact of different immediate breast reconstruction procedures on healthcare expenditure.
Methods:
Hospital Episode Statistics Admit...
Background
The COVID-19 pandemic has resulted in marked impacts on children’s physical activity, with large reductions in moderate-to-vigorous physical activity (MVPA) reported during lockdowns. Previous evidence showed children’s activity levels were lower and sedentary time higher immediately post-COVID lockdown, while there was little change in...
BACKGROUND
Anhedonia and depressed mood are considered the cardinal symptoms of major depressive disorder. These are the first two items of the Patient Health Questionnaire-9 (PHQ-9) and make up the ultra-brief PHQ-2 questionnaire used for pre-screening depressive symptomatology. The pre-screening performance of alternative PHQ-9 item pairings is r...
Background
Anhedonia and depressed mood are considered the cardinal symptoms of major depressive disorder. These are the first 2 items of the Patient Health Questionnaire (PHQ)–9 and comprise the ultrabrief PHQ-2 used for prescreening depressive symptomatology. The prescreening performance of alternative PHQ-9 item pairings is rarely compared with...
Background: Subthreshold depression is a substantial risk factor for the development of major depression and is, for example, associated with poorer health in older adults, functional disabilities, and reduced quality of life. There is a paucity of cost-effective psychosocial interventions for this population in primary care worldwide, particularly...
Background
Methods for the economic evaluation of implementation initiatives to increase the uptake of cost-effective healthcare interventions are not standardised. Value of implementation and policy cost-effectiveness are two proposed approaches. This research aims to compare these two methods and propose a standardised approach. To illustrate thi...
Background: Methods for the economic evaluation of implementation initiatives to increase the uptake of cost-effective healthcare interventions are not standardised. Value of implementation and policy cost-effectiveness are two proposed approaches. This research aims to compare these two methods and propose a standardised approach. To illustrate th...
Introduction: Women considering immediate breast reconstruction (IBR) after mastectomy for breast cancer require high-quality information about the short and long-term clinical outcomes of different procedure types, including the need for further surgery, to allow them to make fully informed decisions about their breast reconstruction options. Long...
Introduction: Women considering immediate breast reconstruction (IBR) after mastectomy for breast cancer require high-quality information about the short and long-term outcomes of different procedure types to allow them to make informed decisions about their surgical options. Long-term multicentre patient-reported outcomes (PROs) comparing the pati...
Introduction: Post-mastectomy radiotherapy (PMRT) is an important component of breast cancer treatment and has been shown to improve overall survival for women with large cancers or node positive disease. The long-term effects of radiotherapy on the outcomes of immediate breast reconstruction (IBR) and how these are perceived from the patients’ per...
Background and aims:
Chronic infection with the hepatitis C virus (HCV) has a detrimental impact on health-related quality of life (QoL). Scale-up of HCV direct-acting antiviral (DAA) therapy among people who inject drugs (PWID) is underway in several countries since the introduction of interferon-free regimens. This study aimed to assess the impa...
Background
Restrictions during the COVID-19 pandemic have led to increased screen-viewing among children, especially during strict periods of lockdown. However, the extent to which screen-viewing patterns in UK school children have changed post lockdowns is unclear. The aim of this paper is to examine how screen-viewing changed in 10–11-year-old ch...
Objectives
To evaluate the impact of a new clinic-based rapid sexually transmitted infection testing, diagnosis and treatment service on healthcare delivery and resource needs in an integrated sexual health service.
Design
Controlled interrupted time series study.
Setting
Two integrated sexual health services (SHS) in UK: Unity Sexual Health in B...
Background:
Measuring objective resource-use quantities is important for generating valid cost estimates in economic evaluations. In the absence of acknowledged guidelines, measurement methods are often chosen based on practicality rather than methodological evidence. Furthermore, few resource-use measurement (RUM) instruments focus on the measure...
Objective
To evaluate the effectiveness and cost-effectiveness of the National PReCePT Programme (NPP) in increasing use of magnesium sulfate (MgSO 4 ) in preterm births.
Design
Before-and-after study.
Setting
Maternity units (N=137) within NHS England and the Academic Health Science Network (AHSN) in 2018.
Participants
Babies born ≤30 weeks’ ge...
Background
One in seven UK children have obesity when starting school, with higher prevalence associated with deprivation. Most pre-school children do not meet UK recommendations for physical activity and nutrition. Formal childcare settings provide opportunities to deliver interventions to improve nutritional quality and physical activity to the m...
Background
There is an urgent need to reduce the burden of depression among older adults in low-income and middle-income countries (LMICs). We aimed to evaluate the efficacy of a task-shared, collaborative care psychosocial intervention for improving recovery from depression in older adults in Brazil.
Methods
PROACTIVE was a pragmatic, two-arm, pa...
Background
Surgery for established cataract is highly cost-effective and uncontroversial, yet uncertainty remains for individuals about when to proceed and when to delay surgery during the earlier stages of cataract.
Objective
We aimed to improve decision-making for cataract surgery through the development of evidence-based clinical tools that pro...
The Patient Health Questionnaire-2 (PHQ-2) is the most commonly used ultra-brief depressive symptomatology pre-screening instrument. However, this analysis demonstrated the PHQ-2 is not superior to other PHQ-9 item pairings in this sample. 12 out of the 36 pairings had an equal or higher cross-validation area under the receiver operating characteri...
Background
Depression in older adults is a challenge for health systems in most low- and middle-income countries (LMICs). Digital strategies for the management of this condition have been emerging worldwide, but the effectiveness of most of them is still unclear, especially among older adults. Thus, we aim to assess the effectiveness and cost-effec...
Background
Active-6 is exploring how the COVID-19 pandemic has impacted physical activity behaviour among Year 6 children (aged 10–11 years) and their parents in Southwest England. Initial findings from the Active-6 project have shown a 7–8 min decrease in moderate-to-vigorous physical activity and an increase in sedentary behaviour among children...
Aims
Health services research (HSR) is affected by a widespread problem related to service terminology including non-commensurability (using different units of analysis for comparisons) and terminological unclarity due to ambiguity and vagueness of terms. The aim of this study was to identify the magnitude of the terminological bias in health and s...
Objectives
This study aimed to assess the known-groups validity of the EQ-5D-5L and the ICEpop Capability Measure for Older People (ICECAP-O), 2 outcome measures used in economic evaluation, among older adults with depressive symptoms in socioeconomically deprived areas of Brazil. We also explored the role of education and income on responses to th...
Accurate measurement of the effects of disease status on healthcare costs is important in the pragmatic evaluation of interventions but is complicated by endogeneity bias. Mendelian Randomization, the use of random perturbations in germline genetic variation as instrumental variables, can avoid these limitations. We used a novel Mendelian Randomiza...
Objective
To evaluate the effectiveness and cost-effectiveness of the National PreCePT Programme (NPP) in increasing magnesium sulphate (MgSO 4 ) in pre-term births.
Design
A quasi-experimental before-and-after design
Setting
Maternity units within NHS England and the AHSN network in 2018.
Participants
Maternity units in England (n=137) who part...
Objective
To investigate the impact of an enhanced QI support programme (ESP) in further improving the magnesium sulphate (MgSO 4 ) uptake compared to the National PReCePT Programme (NPP) model.
Design
An unblinded cluster randomised controlled trial.
Setting
NHS England and the AHSN network in 2018.
Participants
Maternity units with ≥10 pre-ter...
Objective:
The overall aim of this study was to investigate how commissioning policies for accessing clinical procedures compare in the context of the English National Health Service. Our primary objective was to compare policy wording and categorise any variations identified. Our secondary objective was to explore how any points of variation rela...
Objectives
To evaluate the impact of a new clinic-based rapid STI testing, diagnosis and treatment service on healthcare delivery and resource needs in a sexual health service.
Design
Controlled interrupted time series study.
Setting
Two sexual health services in UK: Unity Sexual Health in Bristol, UK (main site) and Croydon Sexual Health in Lond...
Objective
New evidence about existing health technologies can raise questions about the benefits of continued provision. It may be possible to stop or reduce the technology use in people where benefit may not justify health system costs. The EBI programme was introduced in the English National Health Service (NHS) in April 2019. The programme provi...
Objective
The impact of the COVID-19 pandemic on the English National Health Service (NHS) has been profound. Those who commission health services face questions and pressures around addressing growing waiting lists and ensuring patients receive appropriate and timely treatment. In 2019, NHS England launched the Evidence-Based Interventions (EBI) p...
Improving the efficiency of mental healthcare service delivery by learning from international best-practice examples requires valid data, including robust unit costs, which currently often lack cross-country comparability. The European ProgrammE in Costing, resource use measurement and outcome valuation for Use in multi-sectoral National and Intern...
Background
Increasing physical activity among girls is a public health priority. Peers play a central role in influencing adolescent behaviour. Peer-led interventions may increase physical activity in adolescent girls, and a feasibility trial had shown that PLAN-A (Peer-led physical Activity iNtervention for Adolescent girls) had evidence of promis...
Depressive and subthreshold depressive symptomatology are common but often neglected in older adults. / Objective: This study aimed to assess rates of depressive and subthreshold depressive symptomatology, and the characteristics associated, among older adults living in a socioeconomically deprived area of Brazil. / Methods: This study is part of t...
Background
Depression is a common condition in older adults, being often detected and treated initially in primary care. Collaborative care models including, for example, task-shifting and stepped-care approaches have been investigated to overcome the current scarcity of strategies and trained mental health professionals to treat depression. The PR...
Depressive and subthreshold depressive symptomatology are common but often neglected in older adults.
Objectives:
This study aimed to assess rates of depressive and subthreshold depressive symptomatology, and the characteristics associated, among older adults living in a socioeconomically deprived area of Brazil.
Methods:
This study is part of...
Background
Teachers are at heightened risk of poor mental health and well-being, which is likely to impact on the support they provide to students, and student outcomes. We conducted a cluster randomised controlled trial, to test whether an intervention to improve mental health support and training for high school teachers led to improved mental he...
Background
Health and Safety Executive data show that teachers are at heightened risk of mental health difficulties, yet few studies have attempted to address this. Poor teacher mental health may impact on the quality of support provided to young people, who also report increased mental health difficulties themselves.
Objective
To test the effecti...
Background
Implant-based breast reconstruction (IBBR) is the most commonly performed reconstructive procedure following mastectomy. IBBR techniques are evolving rapidly, with mesh-assisted subpectoral reconstruction becoming the standard of care and more recently, prepectoral techniques being introduced. These muscle-sparing techniques may reduce p...
Objectives and intervention
Bloodstream infection, the presence of viable micro-organisms in the blood, is a prevalent clinical event associated with substantial mortality. Patient outcomes may be improved when the causative micro-organism is identified quickly. We assessed the cost-effectiveness of rapid microbial identification by matrix-assisted...
Reprinted under Creative Commons CC-BY license.
Introduction
Breast reconstruction (BR) is offered to improve quality of life for women with breast cancer undergoing mastectomy. As most women will be long-term breast cancer survivors, high-quality information regarding the long-term outcomes of different BR procedures is essential to support informed decision-making. As different techniques vary...
Background
While the methods for conducting health economics research in general are improving, current guidelines provide limited guidance regarding resource use measurement (RUM). Consequently, a variety of methods exists, yet there is no overview of aspects to consider when deciding on the most appropriate RUM methodology. Therefore, this study...
Introduction
Surgery to remove the gallbladder (laparoscopic cholecystectomy (LC)) is the standard treatment for symptomatic gallbladder disease. One potential complication of gallbladder disease is that gallstones can pass into the common bile duct (CBD) where they may remain dormant, pass spontaneously into the bowel or cause problems such as obs...
Background
Physical activity is associated with improved health. Girls are less active than boys. Pilot work showed that a peer-led physical activity intervention called PLAN-A was a promising method of increasing physical activity in secondary school age girls. This study examined the effectiveness and cost-effectiveness of the PLAN-A intervention...
The UK’s National Institute for Health and Care Excellence Preterm labour and birth guideline recommends use of magnesium sulfate (MgSO4) in deliveries below 30 weeks’ gestation to prevent cerebral palsy and other neurological problems associated with preterm delivery. Despite national guidance, the uptake of MgSO4 administration in eligible women...
Introduction
Approximately 40% of the 55 000 women diagnosed with breast cancer each year in the UK undergo mastectomy because they are considered unsuitable for standard breast-conserving surgery (BCS) due to tumour size or multiple tumour foci. Mastectomy can significantly impact women’s quality of life, and only one in four women currently under...
Background
Abdominal surgery sometimes necessitates creating a stoma, which can cause future complications including parastomal hernia (PSH), an incisional hernia, adjacent and related to the stoma. PSH affects approximately 40% of patients within two years of stoma formation. Complications of PSH reduce patients’ quality of life and can be severe,...
Following publication of the original article [1], we were notified that the academic title for two of the authors, as well as the affiliation of Pepijn Van den Ven need to be corrected. Originally published academic titles: Paula Verônica Martini Maciel, D.D.D. Walter Freitas Junior, M.D. Correct academic titles: Paula Verônica Martini Maciel, M.D...
Background
When GPs suspect a brain tumour, a referral for specialist assessment and subsequent brain imaging is generally the first option. NICE has recommended that GPs have rapid direct access to brain imaging for adults with progressive sub‐acute loss of central nervous function; however, no studies have evaluated the cost‐effectiveness.
Metho...
Background
Recruitment to randomised controlled trials (RCTs) can be challenging, with most trials not reaching recruitment targets. Randomised feasibility studies can be set up prior to a main trial to identify and overcome recruitment obstacles. This paper reports on an intervention—the QuinteT Recruitment Intervention (QRI)—to optimise recruitme...
The elderly population has been growing in most low- and middle-income countries (LMIC), and depression is a common condition among these populations. The lack of integration between mental health and primary healthcare services and the shortage of mental health specialists in the public health system contribute to underdiagnosis and undertreatment...
Objectives
Health economics analysis plans (HEAPs) currently lack consistency, with uncertainty surrounding appropriate content. We aimed to develop a list of essential items that should be included in HEAPs for economic evaluations conducted alongside randomized trials.
Methods
A list of potential items for inclusion was developed by examining ex...
The UKs National Institute for Health and Care Excellence (NICE) Preterm labour and birth guideline recommends use of magnesium sulphate (MgSO4) in deliveries below 30 weeks gestation to prevent cerebral palsy and other neurological problems associated with preterm delivery. Despite national guidance, the uptake of MgSO4 administration in eligible...