Publications: DR Neil Walker

Walker NJ, Forbes G, Kahan BC, Smuk M, Phillips R, Quintin O, Lee KM, Edwards MR ( 2026 ) . Statistical analysis plan for Fluid Optimisation in Emergency Laparotomy (FLO-ELA) Trial; a multi-centre randomised trial of cardiac output-guided fluid therapy compared to usual care in patients undergoing major emergency gastrointestinal surgery . Trials

McCabe R, Suzuki M, O’Keeffe S, Walker N, Hooper R, Priebe S, Mihaylova B, Feng Y et al. ( 2026 ) . Improving outcomes in adult patients who self-harm—evaluating a brief psychological intervention in emergency departments (ASSURED): protocol of a randomised controlled clinical trial . Trials vol. 27 , ( 1 )

Karampatakis GD, Wood H, Li X, Griffiths C, Taylor S, Mihaylova B, Toffolutti V, Relton C et al. ( 2025 ) . Experiences of a primary care intervention promoting use of an online health community (OHC) for adults with troublesome asthma: Qualitative interview study . Conference: General practice and primary care

Muhamad N, Walker N, Middelkoop K, Ganmaa D, Martineau AR, You T ( 2025 ) . Physiologically Based Pharmacokinetic Modelling of Serum 25-Hydroxyvitamin D Concentrations in Schoolchildren Receiving Weekly Oral Vitamin D3 Supplementation . Nutrients vol. 17 , ( 19 )

Karampatakis GD, Wood HE, Griffiths CJ, Taylor SJ, Toffolutti V, Bird VJ, Lea NC, Ashcroft R et al. ( 2025 ) . Randomised controlled trial to measure effectiveness and cost-effectiveness of a digital social intervention promoted by primary care clinicians to adults with asthma to improve asthma control: protocol . BMJ Open vol. 15 , ( 9 )

O’Keeffe S, Suzuki M, Ryan M, Priebe S, Byng R, Simpson A, Araújo-Soares V, Albert R et al. ( 2025 ) . Enhanced psychosocial assessment and rapid follow-up care for people presenting to emergency departments with self-harm and/or suicidal ideation: the Assured feasibility study and internal pilot trial . Pilot and Feasibility Studies vol. 11 , ( 1 )

Middelkoop K, Micklesfield L, Hemmings S, Walker N, Stewart J, Jolliffe DA, Mendham AE, Tang JCY et al. ( 2024 ) . Influence of vitamin D supplementation on muscle strength and exercise capacity in South African schoolchildren: secondary outcomes from a randomised controlled trial (ViDiKids) . BMJ Open Sport & Exercise Medicine vol. 10 , ( 3 )

Stewart J, Walker N, Jennings K, Delport C, Nuttall J, Coussens AK, Dyers R, Jolliffe DA et al. ( 2024 ) . Prevalence, incidence and determinants of QuantiFERONTM positivity in South African schoolchildren . IJTLD OPEN vol. 1 , ( 5 ) 206 - 214 .

Middelkoop K, Micklesfield L, Stewart J, Walker N, Jolliffe DA, Mendham AE, Coussens AK, Nuttall J et al. ( 2024 ) . Influence of vitamin D supplementation on growth, body composition, pubertal development and spirometry in South African schoolchildren: a randomised controlled trial (ViDiKids) . BMJ Paediatrics Open vol. 8 , ( 1 )

Middelkoop K, Micklesfield LK, Walker N, Stewart J, Delport C, Jolliffe DA, Mendham AE, Coussens AK et al. ( 2024 ) . Influence of vitamin D supplementation on bone mineral content, bone turnover markers, and fracture risk in South African schoolchildren: multicenter double-blind randomized placebo-controlled trial (ViDiKids) . Journal of Bone and Mineral Research vol. 39 , ( 3 ) 211 - 221 .

Karampatakis GD, Wood HE, Griffiths CJ, Lea NC, Ashcroft RE, Day B, Walker N, Coulson NS et al. ( 2023 ) . Ethical and Information Governance Considerations for Promoting Digital Social Interventions in Primary Care . Journal of Medical Internet Research vol. 25 ,

Karampatakis GD, Wood HE, Griffiths CJ, Taylor SJC, Toffolutti V, Bird VJ, Lea NC, Ashcroft RE et al. ( 2023 ) . Non-randomised feasibility study testing a primary care intervention to promote engagement in an online health community for adults with troublesome asthma: protocol . BMJ Open vol. 13 , ( 7 )

Middelkoop K, Stewart J, Walker N, Delport C, Jolliffe DA, Coussens AK, Nuttall J, Tang JCY et al. ( 2023 ) . Vitamin D supplementation to prevent tuberculosis infection in South African schoolchildren: multicenter phase 3 double-blind randomized placebo-controlled trial (ViDiKids) . International Journal of Infectious Diseases vol. 134 , 63 - 70 .

Edwards MR, Forbes G, Walker N, Morton DG, Mythen MG, Murray D, Anderson I, Mihaylova B et al. ( 2023 ) . Fluid Optimisation in Emergency Laparotomy (FLO-ELA) Trial: study protocol for a multi-centre randomised trial of cardiac output-guided fluid therapy compared to usual care in patients undergoing major emergency gastrointestinal surgery . Trials vol. 24 , ( 1 )

Middelkoop K, Micklesfield L, Walker N, Stewart J, Delport C, Jolliffe D, Mendham A, Coussens A et al. ( 2023 ) . Influence of Vitamin D Supplementation on Bone Mineral Content, Bone Turnover Markers and Fracture Risk in South African Schoolchildren: Multicentre Double-Blind Randomised Placebo-Controlled Trial (ViDiKids) .

Middelkoop K, Stewart J, Walker N, Delport C, Jolliffe D, Coussens A, Nuttall J, Tang J et al. ( 2023 ) . Vitamin D Supplementation to Prevent Tuberculosis Infection in South African Schoolchildren: Multicentre Phase 3 Double-Blind Randomised Placebo-Controlled Trial (ViDiKids) .

McNamee P, Matanov A, Jerome L, Kerry S, Walker N, Feng Y, Molodynski A, Scott S et al. ( 2022 ) . Clinical- and cost-effectiveness of a technology-supported and solution-focused intervention (DIALOG+) in treatment of patients with chronic depression—study protocol for a multi-site, cluster randomised controlled trial [TACK] . Trials vol. 23 , ( 1 )

Middelkoop K, Walker N, Stewart J, Delport C, Jolliffe DA, Nuttall J, Coussens AK, Naude CE et al. ( 2022 ) . Prevalence and Determinants of Vitamin D Deficiency in 1825 Cape Town Primary Schoolchildren: A Cross-Sectional Study . Nutrients vol. 14 , ( 6 )

van Woerden HC, Walker NJ, Kiparoglou V, Yang Y ( 2019 ) . Demonstration of a Fair Level of Agreement Between Escalation Scores Reported by Hospital Managers and Analysis of Stress-Related Hospital Metrics . Health Services Research and Managerial Epidemiology vol. 6 ,

Walker N, Yang Y, Kiparoglou V, Pokhrel S, Robinson H, van Woerden H ( 2018 ) . An examination of user costs in relation to smokers using a cessation service based in the UK . BMC Health Services Research vol. 18 , ( 1 )

Walker N, Gainforth H, Kiparoglou V, Robinson H, van Woerden H, West R ( 2017 ) . Factors moderating the relative effectiveness of varenicline and nicotine replacement therapy in clients using smoking cessation services . Addiction vol. 113 , ( 2 ) 313 - 324 .

Walker NJ, van Woerden HC, Kiparoglou V, Yang Y, Robinson H, Croghan E ( 2016 ) . Gender difference and effect of pharmacotherapy: findings from a smoking cessation service . BMC Public Health vol. 16 , ( 1 )

Walker N, Van Woerden H, Kiparoglou V, Yang Y ( 2016 ) . Identifying seasonal and temporal trends in the pressures experienced by hospitals related to unscheduled care . BMC Health Services Research vol. 16 , ( 1 )

DELAHAY RJ, WALKER N, SMITH GS, WILKINSON D, CLIFTON-HADLEY RS, CHEESEMAN CL, TOMLINSON AJ, CHAMBERS MA ( 2013 ) . Long-term temporal trends and estimated transmission rates for Mycobacterium bovis infection in an undisturbed high-density badger (Meles meles) population . Epidemiology and Infection vol. 141 , ( 7 ) 1445 - 1456 .

Judge J, McDonald RA, Walker N, Delahay RJ ( 2011 ) . Effectiveness of Biosecurity Measures in Preventing Badger Visits to Farm Buildings . PLOS ONE vol. 6 , ( 12 )

Ward AI, Tolhurst BA, Walker NJ, Roper TJ, Delahay RJ ( 2008 ) . Survey of badger access to farm buildings and facilities in relation to contact with cattle . Veterinary Record vol. 163 , ( 4 ) 107 - 111 .

VICENTE J, DELAHAY RJ, WALKER NJ, CHEESEMAN CL ( 2007 ) . Social organization and movement influence the incidence of bovine tuberculosis in an undisturbed high‐density badger Meles meles population . Journal of Animal Ecology vol. 76 , ( 2 ) 348 - 360 .