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Coletsos, I., Stogiannis, D., Introduction to Operational Research, 3rd edition, 968 colored pages, book size: 17*24, Symeon publications, Athens 2017. (Distributed by the Greek ministry of education as an academic book in 63 university departments). Book website: www.operationalresearch.gr.
Coletsos, I., Stogiannis, D., Operational Research: Theory, algorithms and applications, 1st edition, 940 colored pages, book size: 21*29, Symeon publications, Athens 2021. Book website: www.operationalresearch.gr.
A. Timmis, E. Rapsomaniki, S.C. Chung, M. Pujades-Rodriguez, A. Moayyeri, D. Stogiannis, M. Pujades-Rodriguez, A.D. Shah, L. Pasea, S. Denaxas, C. Emmas, H. Hemingway, (2016). Prolonged dual anti-platelet therapy in stable coronary disease: a comparative observational study of benefits and harms in unselected versus trial populations, BMJ, 353.
M. Daskalopoulou, J. George, K. Walters, D.P. Osborn, G.D. Batty, D. Stogiannis, E. Rapsomaniki, M. P.ujades-Rodriguez, S. Denaxas, R. Udumyan, M. Kivimaki, H. Hemingway, (2016). Depression as a risk factor for the Initial Presentation of Twelve Cardiac, Cerebrovascular, and Peripheral Arterial Diseases: Data Linkage Study of 1.9 Million Women and Men, PLoS One, 1-16.
M. Pujades-Rodriguez, B. Duyx, S.L. Thomas, D. Stogiannis, A.Rahman, L. Smeeth, H. Hemingway, (2016). Rheumatoid arthritis and incidence of twelve initial presentations of cardiovascular disease: a population record-linkage cohort study in England, Plos One, 11(3), e0151245.
M. Pujades-Rodriguez, B. Duyx, S.L. Thomas, D. Stogiannis, L. Smeeth, H. Hemingway, (2016). Associations between polymyalgia rheumatica and giant cell arteritis and 12 cardiovascular diseases, Heart, 102, 383-389.
E. Rapsomaniki, M. Thuresson, E. Yang, P. Blin; P. Hunt, S.C. Chung, D. Stogiannis, M.P. Rodriguez, A. Timmis, S. Denaxas, N. Danchin, M. Stokes, F.T. Delecourt, C. Emmas, P. Hasvold, E. Jennings, S. Johansson, D.J. Cohen, T. Jernberg, N. Moore, M. Janzon, H. Hemingway, (2016). Using big data from health records from four countries to evaluate chronic disease outcomes: a study in 114,364 survivors of myocardial infarction, European Heart Journal, 2 (3), 172-183.
M. Papadimitriou, S. Kaptanis, E. Polumeropoulos, G. Mitsopoulos, D. Stogiannis, C. Caroni, G. Apostolou, G. Vaiopoulos, J.G. Panayiotides, P. Karakitsos, (2015). The nuclear grade plus proliferation grading system for Invasive Ductal Carcinoma of the breast: validation in a tertiary referral hospital cohort in a white Caucasian population, American Journal of Clinical Pathology, 144:1-7.
M. Pujades-Rodriguez, A. Timmis, D. Stogiannis, E. Rapsomaniki, S.  Denaxas, A. Shah, G. Feder, M. Kivimaki, H. Hemingway, (2014). Socioeconomic deprivation and the incidence of 12 cardiovascular diseases in 1.93 million women and men: Implications for risk predictions and prevention, Plos Medicine, 9:8, pp. 1-12.
D.Stogiannis and C. Caroni, (2012). Issues in fitting inverse Gaussian first hitting time regression models for lifetime data, Communications in Statistics - Simulation and Computation, 42:9, 1948-1960.
D. Stogiannis and C. Caroni, (2012). Tests for outliers in the inverse Gaussian distribution, with application to first hitting time models, Journal of Statistical Computation & Simulation, 82, 73-80.
D. Stogiannis, C. Caroni, C.E. Anagnostopoulos and I.K. Toumpoulis, (2011). Comparing first hitting time and proportional hazards regression models, Journal of Applied Statistics, 38:7, 1483-1492.
D. Stogiannis, F. Siannis, L. Meligkotsidou, (2015). Heterogeneity in Meta-analysis,  Technical report, Dept. of Mathematics, National and Kapodistrian, University of Athens, Greece.
D. Stogiannis, F. Siannis, Assessing the effectiveness of ad spend on Business KPIs, 31st Pan-Hellenic Conference in Statistics (ESI), Lamia, 04-06 May, 2018.
F. Siannis, D. Stogiannis, L. Meligkotsidou, Meta-analysis of time-to-event data with small treatment effects, 37th Annual Conference of the International Society for Clinical Biostatistics (ISCB), Birmingham, United Kingdom, 20-25 August, 2016.
D. Stogiannis, F. Siannis, L. Meligkotsidou, Meta-Analysis of time-to-event studies with small effects, 29th Pan-Hellenic Conference in Statistics (ESI), Naousa, 04-07 May, 2016.
D. Stogiannis, F. Siannis, L. Meligkotsidou, Non-parametric methods for meta-analysis of time to event data, 36th Annual Conference of the International Society for Clinical Biostatistics (ISCB), 23-27 August, Utrecht, The Netherlands, 2016.
D. Stogiannis, L. Meligkotsidou, F. Siannis, Non parametric Meta Analysis for time to event data, 28th Pan-Hellenic Conference in Statistics (ESI), Harokopion University, Athens, 15-18 April, 2015.
M. Papadimitriou, S. Kaptanis, E. Polymeropoulos, G. Mitsopoulos, D. Stogiannis, C. Caroni, G. Vaiopoulos, J.G. Panayiotides, P. Karakitsos, The nuclear grade plus proliferation grading system for Invasive Ductal Carcinoma of the breast: validation in a tertiary referral hospital cohort in a white caucasian population, poster, 26th European Congress of Pathology, ExCeL, London, 30 August-3 September 2014.
M. Papadimitriou, S. Kaptanis, E. Polumeropoulos, G. Mitsopoulos, D. Stogiannis, C. Caroni, G. Apostolou, G. Vaiopoulos, J.G. Panayiotides, P. Karakitsos, The nuclear grade plus proliferation grading system (n+p) for Invasive Ductal Carcinoma, 40th  Pan-Hellenic Medical Conference, Athens, 14-17 May 2014.
C. Caroni and D. Stogiannis, Outlier Testing in Some Time-to-Event Models, International Chinese Statistical Association, The 21st Applied Statistics Symposium, Boston, U.S., June 23-26 2012.
C. Caroni, D. Stogiannis, Tests for outliers in power-law and inverse Gaussian models for event times, 4th International Conference of the ERCIM WG on COMPUTING & STATISTICS (ERCIM'11), London, England, 17-19 December 2011.
C. Caroni, D. Stogiannis, Tests for outliers in some models for recurrent events, 14th Conference of the ASMDA International Society – ASMDA2011, Rome, Italy, 7-10 June 2011.
C. Caroni, D. Stogiannis, Testing for outliers in sets of repairable systems, International Conference on Risk Analysis–ICRA 4, Limassol, Cyprus 26-29 May, 2011.
D. Stogiannis and C. Caroni, Exploration on the adaptation of the first hitting time regression model, 24th Pan-Hellenic Conference in Statistics (ESI), Patra, 27-31 April, 2011.
D. Stogiannis and C. Caroni, Tests for outliers in the Inverse Gaussian distribution, with application to first hitting time models, 28th European Meeting of Statisticians, Piraeus, Greece, 17-22 August, 2010.
D. Stogiannis, C. Caroni, Test for outliers for inverse Gaussian distribution with application to first hitting time models, 23rd Pan-Hellenic Conference in Statistics (ESI), Veroia, 7-11 April, 2010.
D. Stogiannis, J. Coletsos, Evaluating the impact of Media Key Performance Indicators on Business Key Performance Indicators, 2nd International Conference on Quantitative, Social, Biomedical and Economic Issues (ICQSBEI), Athens, 2-3 March, 2018.
E. Rapsomaniki, D. Stogiannis, A.D. Shah, C. Emmas, S.C. Chung, L. Pasea, M. Pujades, S. Denaxas, A. Timmis, H. Hemingway, Health outcomes in patients with stable coronary artery disease following myocardial infarction construction of a PEGASUS-TIMI-54 like population in linked UK electronic health records (CALIBER), European Society of Cardiology (ESC), 28 August-3 September Barcelona, 2014, pp. 363. Oxford Univ. Press.
Barrett JK, Farewell VT, Siannis F, Tierney J, Higgins JPT (2012). Two-stage meta-analysis of survival data from individual participants using percentile ratios. Statistics in Medicine, 31(30), 4296-4308.
Siannis F (2011), Sensitivity Analysis for Multiple Right Censoring Processes: Investigating Mortality in Psoriatic Arthritis. Statistics in Medicine, 30(4), 356-367.
Barrett J, Siannis F, Farewell V (2011). A Semi-competing risks model for data with interval-censoring and informative observation: An application to the MRC Cognitive Function and Aging Study. Statistics in Medicine, 30(1), 1-10.
Bakoyannis G, Siannis F, Touloumi G (2010). Modelling competing risks data with missing cause of failure. Statistics in Medicine, 29(30), 3172-3185.
Siannis F, Barrett J, Farewell V, Tierney J (2010). One-stage parametric meta-analysis of time-to-event outcomes. Statistics in Medicine, 29(29), 3030-3045.
Chandran V, Siannis F, Rahman P, Pellett FJ, Farewell VT, Gladman DD (2010). Folate Pathway Enzyme Gene Polymorphisms and the Efficacy and Toxicity of Methotrexate in Psoriatic Arthritis. J. Rheumatol, 37(7), 1508-1512.
Dahabreh IJ, Linardou H, Siannis F, Kosmidis P, Bafaloukos D, Murray S (2010). Somatic EGFR mutation and amplification as predictive biomarkers for response to tyrosine kinase inhibitors in non-small-cell lung cancer: a systematic review and meta-analysis. Clinical Cancer Research, 16(1), 291-303.
Linardou H, Dahabreh I, Kanaloupiti D, Siannis F, Bafaloukos D, Kosmidis P, Papadimitriou C, Murray S (2008). Assessment of somatic k-RAS mutations as a mechanism associated with resistance to EGFR-targeted agents: a systematic review and meta-analysis of studies in advanced non-small-cell lung cancer and metastatic colorectal cancer. Lancet Oncology, 9(10), 962-972.
Rao C, Hart J, Chow A, Siannis F, Tsalafouta P, Murtuza B, Darzi A, Wells F C, Athanasiou T (2008). Does preservation of the sub-valvular apparatus during mitral valve replacement affect long-term survival and quality of life? A Microsimulation Study. Journal of Cardiothoracic Surgery, 23;3:17.
Hanly JG, Urowitz MB, Siannis F, Farewell VT et. al. (2008). Autoantibodies and Neuropsychiatric events at diagnosis of SLE. Arthritis & Rheumatism, 58(3), 843-853.
Dahabreh I J, Linardou H, Siannis F, Fountzilas G, Murray S (2008). Trastuzumab in the Adjuvant Treatment of Early-Stage Breast Cancer: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Oncologist, 13(6), 620-630.
Athanasiou T, Chow A, Rao C, Aziz O, Siannis F, Ali A, Darzi A, Wells F (2008). Preservation of the mitral valve apparatus: evidence synthesis and critical reappraisal of 6 surgical techniques. European Journal of Cardiothoracic Surgery, 33(3), 391-401.
Rahman P, Snelgrove T, Peddle L, Siannis F, Farewell V, Schentag C, Gladman D (2008). A variant of IL4-I50V SNP is associated with erosive joint disease in psoriatic arthritis. Arthritis & Rheumatism, 58(7), 2207-2208.
Pellett F, Siannis F, Vukin I, Lee P, Urowitz M, Gladman D (2007). KIRs and autoimmune disease: Studies in Systemic Lupus Erythematosus and Scleroderma. Tissue Antigens, 69 suppl 1, 106-108.
Siannis F, Farewell V, Head J (2007). A Multi-State Model for Joint Modeling of Terminal and Non-Terminal Events with Application to Whitehall II. Statistics in Medicine, 26(2), 426-442.
Rahman P, Siannis F, Butt C, Farewell V, Peddle L, Pellett F, Gladman D (2006). TNF Polymorphims and risk of Psoriatic Arthritis in Caucasian Populations. Annals of the Rheumatic Diseases, 65(7), 919-923.
Siannis F, Farewell VT, Cook RJ, Schentag CT, Gladman DD (2006). Clinical and Radiological Damage in Psoriatic Arthritis. Annals of the Rheumatic Diseases, 65(4), 478-481.
Rahman P, Butt C, Siannis F, Farewell V, Peddle L, Pellett F, Schentag C, Gladman D (2005). Association of SEEK1 and Psoriatic Arthritis in Two Distinct Canadian Populations. Annals of the Rheumatic Diseases, 64(9), 1370-1372.
Gladman DD, Kung T, Siannis F, Pellett FJ, Farewell VT, Lee P (2005). HLA Markers for Susceptibility and Expression in Scleroderma. Journal of Rheumatology 32(8), 1481-1487.
Siannis F, Copas J and Lu G (2005). Sensitivity analysis for informative censoring in parametric survival models. Biostatistics, 6(1), 77-91.
Butt C, Rahman P, Siannis F, Farewell V, Gladman D (2005). Corneodesmosin polymorphisms in psoriatic arthritis. Rheumatology, 44(5), 684-685.
Siannis F (2004). Applications of a Parametric Model for Informative Censoring. Biometrics, 60(3), 704-714.
Rahman P, Barlett S, Siannis F, Pellett FJ, Farewell VT, Schentag CT, Alderdice CA, Hamilton S, Khraishi M, Tobin Y, Hefferton D, Gladman DD (2003). CARD15: a Pleiotropic Autoimmune Gene that Confers Susceptibility to Psoriatic Arthritis. The American Journal of Human Genetics, 73, 677-681.
Chaimani A, Dahabreh I, Linardou H, Cappuzzo F, Papadimitriou C, Kosmidis P, Bafaloukos D, Siannis F, Murray S (2011). Prognostic Significance of EGFR Gene Copy Number Gain in NSCLC: A Systematic Review and Meta-Analysis. Journal of Thoracic Oncology, 6(6), S1005-S1005.
Chandran V, Siannis F, Schentag CT, Peddle L, Pellett FJ, Farewell VT, Rahman P, Gladman DD (2008). A pharmacogenetic study on the efficacy of methotrexate in psoriatic arthritis. 5th International Congress on Psoriasis - From Gene to Clinic, DEC 04-06, 2008, London, ENGLAND. British Journal of Dermatology, 159(6), 1410-1410.
Chandran V, Siannis F, Schentag CT, Peddle L, Pellett FJ, Farewell VT, Rahman P, Gladman DD (2008). A pharmacogenetic study on the efficacy of methotrexate (MIX) in psoriatic arthritis (PsA). 72nd Annual Scientific Meeting of the American-College-of-Rheumatology/43rd Annual Scientific Meeting of the Association-of-Rheumatology-Health-Professionals , OCT 24-29, 2008 San Francisco, CA, USA. Arthritis and Rheumatism, 58(9), S364-S364.
Dahabreh IJ, Linardou H, Siannis F, Fountzilas G, Murray S (2008). Trastuzumab in the adjuvant treatment of early-stage breast cancer: A systematic review and meta-analysis of randomized controlled trials. Congress of the European-Society-for-Medical-Oncology, 2007, Lugano, Switzerland. Oncologist, 13(6), 620-630.
Rahman P, Snelgrove T, Siannis F, Peddle L, Schentag C, Farewell V, Gladman D (2007). A variant of the IL4R-150V SNP is associated with greater burden of erosive joint disease in psoriatic arthritis. Annual European Congress of Rheumatology (EULAR 2007) JUN 13-16, 2007 Barcelona, SPAIN. Annals of the Rheumatic Disease, 66(2), 97-97.
Gladman DD, Pellett F, Siannis F, Farewell VT, Rahman P (2006). Role of chromosome 6P haplotypes in the susceptibility to psoriatic arthritis. 1st World Psoriasis and Psoriatic Arthritis Conference, MAY 31-JUN 04, 2006, Stockholm, SWEDEN. Journal of Investigative Dermatology, 127(7), 1801-1801.
Pellett F, Siannis F, Vukin I, Lee P, Urowitz MB, Gladman DD (2005). KIRs and autoimmune disease: studies in systemic lupus erythematosus and scleroderma. 35th Annual Scientific Meeting of the Australasian-Society-for-Immunology/14th International HLA and Immunogenetics Workshops, NOV 29-DEC 02, 2005, Melbourne, Australia. Tissue Antigens, 69(1), 106-108.
Rahman P, Siannis F, Butt C, Farewell VT, Peddle L, Pellet F, Gladman D (2005). Meta-analysis of TNF-alpha polymorphism in caucasian psoriatic arthritis populations. Annual European Congress of Rheumatology, JUN 08-11, 2005, Vienna, AUSTRIA. Annals of the Rheumatic Disease, 64(3), 325-325.
Rahman P, Butt C, Siannis F, Farwell V, Pellett F, Peddle L, Schentag C, Gladman D (2004). Association of TNF-alpha and corneodesmosin (CDSN) in psoriatic arthritis. 68th Annual Scientific Meeting of the American-College-of-Rheumatology/39th Annual Scientific Meeting of the Association-of-Rheumatology-Health-Professionals OCT 16-21, 2004, San Antonio, TX, USA. Arthritis and Rheumatism, 50(9), S619-S619.
Rahman P, Butt C, Siannis F, Farewell VT, Peddle L, Pellett FN, Schentag C, Gladman DD (2004). SEEK1 and psoriatic arthritis in two distinct Canadian populations. 68th Annual Scientific Meeting of the American-College-of-Rheumatology/39th Annual Scientific Meeting of the Association-of-Rheumatology-Health-Professionals OCT 16-21, 2004, San Antonio, TX, USA. Arthritis and Rheumatism, 50(9), S619-S619.
​36th Annual Conference of ISCB, 23-27 August 2015, Utrecht, Netherlands, Non-parametric methods for meta-analysis of time-to-event data.
SAM Conference, 01 July 2014, Cambridge, UK, Meta-Analysis of time-to-event survival Data.
34th Annual Conference of ISCB, 25-29 August 2013, Munich, Germany, Competing Risks Meta-Analysis.
32nd Annual Conference of ISCB, 21-25 August 2011, Ottawa, Canada, Meta-Analysis subject to Misclassification.
6th EMR-IBS Conference, 8-12 May 2011, Crete, Greece, The use of Multi-State Models in the Analysis of Semi-Competing Risks Data.
28th Annual Conference of ISCB, 29 July-2 August 2007, Alexandroupolis, Greece, Modelling the impact on the randomized treatment effect of a potent drug introduced post randomization.
XXIII International Biometric Conference, 16-21 July 2006, Montreal, Canada, One-Stage Parametric Meta-Analysis of time-to-event Outcomes using Individual Patients Data.
RSS/PSI Conference: Statistics in Healthcare, July 18-21, 2005, Cardiff, UK, A Multi-State Model for Joint Modelling of Terminal and Non-Terminal Events with Application to Whitehall II.
International Biometric Conference, July 11-16, 2004, Cairns, Queensland, Australia, Identifying a class of models with dependent risks on the basis of a model with independent risks.
19th International Workshop on Statistical Modelling, July 4-8, 2004, Florence, Italy, Analyzing Plaid Designs using Mixed Models.
17th Conference of the Hellenic Statistical Institute, April 30-May 3, 2004, Lefkada, Greece, Joint Modelling of fatal and non-fatal Coronary Heart Disease events in a cohort study with civil servants.
2nd Workshop on Correlated Data Modeling, January 9-10, 2004, Turin, Italy, Sensitivity Analysis for Informative Censoring, A Semi-Parametric Approach.
The 2003 Joint Statistical Meetings, August 3-7, 2003, San Francisco, USA, The Use of a Parametric Model for Informative Censoring.
Young Statisticians’ Meeting, April 14-15, 2003, Cambridge, UK, Applications of a Parametric Model for Informative Censoring.
Methodology and Statistics, September 16-18, 2002, Ljubljana, Slovenia, Sensitivity Analysis for Informative Censoring in Parametric Survival Models: Basic Principles and Extension in the Presence of Covariates.
First Barcelona Workshop in Survival Analysis, June 12-14, 2002, Barcelona, Spain, Sensitivity Analysis For Informative Censoring in Parametric Survival Models.
23rd Research Student’s Conference in Probability and Statistics, April 11-14, 2000, Cardiff, UK, Model for Informative Censoring.