Dr Doyo Enki

Dr Doyo Enki

Research Fellow in Medical Statistics

Medical Statistics


Dr Doyo Gragn Enki joined University of Plymouth in June 2013 as a Research Fellow in Medical Statistics. Previously, he worked as Research Associate at The Open University, UK (2011-2013), where he studied his PhD. He also held a Lecturer position at Jimma University, Ethiopia (2000-2004), and also worked as Statistician at Development Bank of Ethiopia (1997-2000).

He is currently engaged in research on different projects and teaching undergraduate and postgraduate medical students at Faculty of Medicine and Dentistry, University of Plymouth. He also runs statistical consultancy service for researchers/ clinicians working for the University Hospitals Plymouth NHS Trust.


2011 - PhD in Statistics, The Open University, UK.
            Thesis title: Interpretable and fast dimension reduction of multivariate data
            Supervisors: Dr Nickolay Trendafilov and Prof Frank Critchley

2007 - MSc. in Biostatistics (with distinction), Hasselt University, Belgium

2006 - MSc. in Applied Statistics (with distinction), Hasselt University, Belgium

2004 - MSc. in Statistics, Addis Ababa University, Ethiopia

1996 -  BSc. in Statistics, Addis Ababa University, Ethiopia

AFHEA, Higher Education Academy (2016)

Professional membership

Associate Fellow of Higher Education Academy 

Teaching interests

Evidence-based practice, particularly on 
    - Randomised clinical trials 
    - Systematic reviews and Meta-Analysis 
    - Diagnostic studies

    - Study designs    

Research interests

Multivariate Statistics
Survival data analysis
Medical Statistics

Key publications are highlighted

Bennett K, Enki DG, Thursz M, Cramp ME & Dhanda AD 2019 'Systematic review with meta-analysis: high mortality in patients with nonsevere alcoholic hepatitis' Alimentary Pharmacology and Therapeutics , DOI PEARL
Collings RJ, Freeman J, Latour J, Glasser S, Vickery PJ, Enki D, Lepesis V & Paton J 2019 'INSoles To Ease Pressure (INSTEP) Study: a multicentre, randomised controlled feasibility study to compare the effectiveness of a novel instant optimised insole with a standard insole for people with diabetic neuropathy: a study protoco' BMJ Open , DOI PEARL
Madhu C, Hashim H, Enki D, Yassin M & Drake M 2018 'Corrigendum to "Coital Incontinence: What Can We Learn From Urodynamic Assessment?" [Urology 85 (2015) 1034-1038]' Urology 124, 316-316 Author Site , DOI PEARL
Cunningham R, Jones L, Enki DG & Tischhauser R 2018 'Proton Pump Inhibitor use as a risk factor for Enterobacteriaceal infection: a case-control study' Journal of Hospital Infection 100, (1) 60-64 , DOI PEARL
Rickard AC, Vassallo J, Nutbeam T, Lyttle MD, Maconochie IK, Enki DG & Smith JE 2018 'Paediatric Traumatic Cardiac Arrest: A Delphi study to establish consensus on definition and management' Emergency Medicine Journal 35, (7) , DOI PEARL
Logan A, Freeman J, Kent B, Pooler J, Creanor S, Vickery J, Enki D, Barton A & Marsden J 2018 'Standing Practice In Rehabilitation Early after Stroke (SPIRES): a functional standing frame programme (prolonged standing and repeated sit to stand) to improve function and quality of life and reduce neuromuscular impairment in people with severe sub-acute stroke-a protocol for a feasibility randomised controlled trial' Pilot Feasibility Stud 4, 66-66 Author Site , DOI PEARL
Jones R, Kirenga BJ, Katagira W, Singh SJ, Pooler J, Okwera A, Kasiita R, Enki DG, Creanor S 2017 'A pre–post intervention study of pulmonary rehabilitation for adults with post-tuberculosis lung disease in Uganda' International Journal of Chronic Obstructive Pulmonary Disease 3533-3539 , DOI PEARL
Gallacher S, Enki D, Stevens S & Bennett MJ 2017 'An experimental model to measure the ability of headphones with active noise control to reduce patient’s exposure to noise in an intensive care unit' Intensive Care Medicine Experimental 5, (1) , DOI PEARL
Sweet D, Byng R, Webber M, Enki DG, Porter I, Larsen J, Huxley P & Pinfold V 2017 'Personal wellbeing networks, social capital and severe mental illness: findings from an exploratory study' British Journal of Psychiatry PEARL
Nutbeam T, Clarke R, Luff T, Enki DG & Gay D 2017 'The height of the cricothyroid membrane on computed tomography scans in trauma patients' Anaesthesia , DOI PEARL
Madhu C, Hashim H, Enki DG, Yaasin M & Drake M 2017 'Risk factors and functional abnormalities associated with adult onset secondary nocturnal enuresis in women' Neurourology and Urodynamics 36, (1) 188-191 , DOI PEARL
Williams EL, Stimpson ML, Collins PL, Enki DG, Sinha A, Lee RW & Dhanda AD 2016 'Development and validation of a novel bioassay to determine glucocorticoid sensitivity' Biomarker Research 4, 26-26 , DOI PEARL
Enki DG, Garthwaite PH, Farrington CP, Noufaily A, Andrews NJ & Charlett A 2016 'Comparison of Statistical Algorithms for the Detection of Infectious Disease Outbreaks in Large Multiple Surveillance Systems' PLoS ONE 11, (8) e0160759-e0160759 , DOI PEARL
Whitehouse KJ, Jeyaretna DS, Enki DG & Whitfield PC 2016 'Head injury in the elderly - what are the outcomes of neurosurgical care?' World neurosurgery 94, 493-500 , DOI PEARL
Graham B, Smith J & Enki DG 2016 'Strengths and weaknesses in team communication processes in a UK emergency department setting: findings using the Communication Assessment Tool-Team' European Journal of Emergency Medicine PEARL
Patel N, Batten T, Roberton A, Enki D, Wansbrough G & Davis J 2016 'A comparison of energy consumption between the use of a walking frame, crutches and a Stride-on rehabilitation scooter' The Foot 28, 7-11 , DOI PEARL
Enki DG, Noufaily A, Farrington P, Garthwaite P, Andrews N & Charlett A 2016 'Taylor’s power law and the statistical modelling of infectious disease surveillance data' Journal of the Royal Statistical Society, Series A 180, (1) 45-72 , DOI PEARL
Noufaily A, Farrington P, Garthwaite P, Enki DG, Andrews N & Charlett A 2016 'Detection of infectious disease outbreaks from laboratory data with reporting delays' Journal of American Statistical Association 111, (514) 488-499 , DOI PEARL
Hilton DA, Shivane A, Kirk L, Bassiri K, Enki DG & Hanemann CO 2015 'Activation of multiple growth factor signalling pathways is frequent in meningiomas' Neuropathology 36, (3) 250-261 , DOI PEARL
Madhu C, Enki DG, Yaasin M, Drake M & Hashim H 2015 'Functional effects of cigarette smoking on the lower urinary tract: a urodynamic perspective' Urologia Internationalis 95, (4) 478-482 , DOI PEARL
Madhu K, Hashim H, Enki DG, Yaasin M & Drake M 2015 'Coital incontinence: what can we learn from urodynamic assessment?' Urology 85, (5) 1034-1038 , DOI PEARL
Whitehouse KJ, Jeyaretna SD, Enki DG & Whitfield PC 2015 'Head injury in the elderly' British Journal of Neurosurgery 29, (2) 124-163 , DOI
Pinfold V, Sweet D, Porter I, Quinn C, Bying R, Griffiths C, Billsborough J, Enki DG, Chandler R 2015 'Improving community health networks for people with severe mental illness: a case study investigation' Health Services and Delivery Research 3, (5) PEARL
Noufaily A, Ghebremichael-Weldeselassie Y, Enki DG, Garthwaite PH, Andrews N, Charlett A & Farrington CP 2015 'Modeling reporting delays for outbreak detection in infectious disease data' Journal of Royal Statistical Society, Series A 178, (1) 205-222 , DOI
Enki DG, Noufaily A & Farrington CP 2014 'A time-varying shared frailty model with application to infectious diseases' The Annals of Applied Statistics 8, (1) 430-447 , DOI
Noufaily A, Enki DG, Farrington P, Garthwaite P, Andrews N & Charlett A 2013 'An improved algorithm for outbreak detection in multiple surveillance systems' Stat Med 32, (7) 1206-1222 Author Site , DOI
Enki DG, Trendafilov NT & Jolliffe IT 2013 'A clustering approach to interpretable principal components' Journal of Applied Statistics 40, (3) 583-599 , DOI
Enki DG, Noufaily A & Farrington CP 2013 'A time-varying shared frailty model with application to infectious diseases' In peer review
Enki DG, Noufaily A, Garthwaite PH, Andrews NJ, Charlett A, Lane C & Farrington CP 2013 'Automated biosurveillance data from England and Wales, 1991-2011' Emerg Infect Dis 19, (1) 35-42 Author Site , DOI
Enki DG, Noufaily A & Farrington CP 2013 'Statistical models for biosurveillance of multiple organisms'
Enki DG, Noufaily A, Farrington CP, Garthwaite PH, Andrews N, Charlett A & Lane C 2013 'Statistical Models for Biosurveillance of Multiple Organisms' Online Journal of Public Health Informatics 5, (1)
Enki DG & Trendafilov NT 2012 'Sparse principal components by semi-partition clustering' Computational Statistics 27, (4) 605-626 , DOI
Malede T, Haileamlak A & Enki DG 2006 'Pattern of heart diseases in children over five years period in Jimma University Hospital: A retrospective study' Ethiopian Journal of Health Sciences 16, 37-46
Enki DG 2005 'Errors in population projection: the case of UN projection for African countries' Journal of Ethiopian Statistical Association 14, 37-53
Callaghan L, Thompson TP, Creanor E, Quinn C, Senior J, Green C, Byng R, Wallace G, Sinclair J 0 'Individual Health Trainers to support health and wellbeing for people under community supervision in the criminal justice system: the STRENGTHEN pilot RCT' Public Health Research PEARL
Conference Papers
Nutbeam T, Enki DG, Clarke R, Luff T & Gay D 2016 'Emergency Cricothyrotomy: Revised anatomy and its implications for clinical practice' RCEM Annual Scientific Conference 2016 Bournemouth Internationla Centre 20/09/2016 22/09/2016 , DOI PEARL
Jones R, Kirenga B, Pooler J, Katagira W, Kasiita R, Gragn Enki D, Creanor S, Barton A, Okwera A 2016 'A development study of pulmonary rehabilitation for patients with chronic lung disease in Uganda' ERS International Congress 2016 abstracts European Respiratory Society , DOI
Rowswell H, Enki DG & Nokes TJC 2016 'Hospital acquired vs community acquired VTE: Comparison of risk factors and 5 years follow-up' International society of hematology Glasgow 18/04/2006 21/04/2016 , DOI

Additional information

Conference talks and posters

·         Comparison of statistical algorithms for the detection of infectious disease outbreaks, International Conference of the Royal Statistical Society, 7 - 10 September 2015, Exeter University, UK.

·       Statistical models for biosurveillance of multiple organisms, the 2012 International Society for Disease Surveillance (ISDS) conference, San Diego, USA, 4-5 Dec 2012.

·       Statistical models for biosurveillance: an empirical investigation, 33rd Annual Conference of the International Society for Clinical Biostatistics, Bergen, Norway, 19-23 August 2012.

·       Evaluation of statistical algorithms for the detection of infectious disease outbreaks, 32nd Annual Conference of the International Society for Clinical Biostatistics, Ottawa, Canada, 21-25 August 2011.

·       Sparse principal components by semi-partition clustering, International Conference of the Royal Statistical Society, 13-17 September 2010, Brighton, UK.

·       A semi-partition approach to gene clustering, 31st Annual Conference of the International Society for Clinical Biostatistics, 29 August - 2 September 2010, Montpellier, France.

·       Sparse eigengenes by semi-partitioning clustering method, Workshop on Sparse structures: statistical theory and practice, 16-18 June 2010, University of Bristol, UK.

·       Penalized varimax, 16th International Meeting of the Psychometric Society, 20-24 July 2009, St. John's College, Cambridge, UK.

·       Sparse and interpretable components, Sparsity in Machine Learning and Statistics, 1-3 April 2009, Cumberland Lodge, UK.

·       Interpretable dimensionality reduction for data of high dimension, 31st Research Students' Conference, 31 March - 1 April, 2008, University of Nottingham, UK. 

Invited talk

·       A time-varying shared frailty model with application to infectious diseases, Meeting on Probability Distributions and Statistical Models for Reliability and Survival Analysis, 30 May 2014, Brunel University, London, UK.