User profiles for Fotios Siannis

Fotios Siannis

Assistant Professor in Statistics, Department of Mathematics, University of Athens
Verified email at math.uoa.gr
Cited by 2910

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 …

…, IJ Dahabreh, D Kanaloupiti, F Siannis… - The lancet …, 2008 - thelancet.com
Background Somatic mutations of the k-RAS oncogene have been assessed as a
mechanism of de-novo resistance to epidermal growth factor receptor (EGFR) tyrosine-kinase …

Trastuzumab in the adjuvant treatment of early-stage breast cancer: a systematic review and meta-analysis of randomized controlled trials

IJ Dahabreh, H Linardou, F Siannis, G Fountzilas… - The …, 2008 - academic.oup.com
Learning Objectives After completing this course, the reader will be able to: Summarize the
main characteristics and findings of randomized controlled trials evaluating trastuzumab for …

Somatic EGFR Mutation and Gene Copy Gain as Predictive Biomarkers for Response to Tyrosine Kinase Inhibitors in Non–Small Cell Lung Cancer

IJ Dahabreh, H Linardou, F Siannis, P Kosmidis… - Clinical Cancer …, 2010 - AACR
Purpose: The aim of this systematic review and meta-analysis was to characterize common
EGFR molecular aberrations as potential predictive biomarkers for response to monotherapy …

Preservation of the mitral valve apparatus: evidence synthesis and critical reappraisal of surgical techniques

…, A Chow, C Rao, O Aziz, F Siannis… - European journal of …, 2008 - academic.oup.com
Sub-valvular apparatus preservation after mitral valve replacement is not a new concept, yet
to date there has been no quantification of its clinical effectiveness as a procedure and no …

Clinical and radiological damage in psoriatic arthritis

F Siannis, VT Farewell, RJ Cook… - Annals of the …, 2006 - ard.bmj.com
Background: Psoriatic arthritis may progress to joint damage. Joint damage may be assessed
clinically, by identifying deformed, fused, or flail joints, or radiologically, by recording …

Sensitivity analysis for informative censoring in parametric survival models

F Siannis, J Copas, G Lu - Biostatistics, 2005 - academic.oup.com
Most statistical methods for censored survival data assume there is no dependence between
the lifetime and censoring mechanisms, an assumption which is often doubtful in practice. …

TNFα polymorphisms and risk of psoriatic arthritis

P Rahman, F Siannis, C Butt, V Farewell… - Annals of the …, 2006 - ard.bmj.com
Background: Tumour necrosis factor α (TNFα) is a cytokine of critical importance in psoriatic
arthritis. Objectives: (1) To examine the association between TNFα promoter gene …

HLA markers for susceptibility and expression in scleroderma.

DD Gladman, TN Kung, F Siannis, F Pellett… - The Journal of …, 2005 - jrheum.org
OBJECTIVE: Reported associations between HLA alleles and both susceptibility to and features
of scleroderma have been conflicting. Our objective was (1) to determine the role of HLA …

Folate pathway enzyme gene polymorphisms and the efficacy and toxicity of methotrexate in psoriatic arthritis

V Chandran, F Siannis, P Rahman, FJ Pellett… - The Journal of …, 2010 - jrheum.org
Objective. To determine the association between folate pathway gene polymorphisms and
the effectiveness, toxicity, and drug survival of methotrexate (MTX) in psoriatic arthritis (PsA). …

Modelling competing risks data with missing cause of failure

G Bakoyannis, F Siannis, G Touloumi - Statistics in medicine, 2010 - Wiley Online Library
When competing risks data arise, information on the actual cause of failure for some subjects
might be missing. Therefore, a cause‐specific proportional hazards model together with …