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Orestis Efthimiou

3 papers hereh-index 366.4k citations129 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author3

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • stat.ME3

identity via Semantic Scholar / OpenAlex

activity
20202026
most citedMultiple imputation of incomplete multilevel data using Heckman selection models

2 citations · 2 across the 2 of their papers we have counts for

collaborators

3 papers

stat.ME2026

Estimating heterogeneous treatment effects from randomised trials: a comparison of the risk modelling and treatment effect modelling approaches

Frederik Luca Philipona, Marta Mainetti, Orestis Efthimiou +1

Introduction Risk modelling (RM) and treatment effect modelling (EM) are two approaches to build models to estimate heterogeneous treatment effects from randomized control trials (…

stat.ME2023★ 2 cited

Multiple imputation of incomplete multilevel data using Heckman selection models

Johanna Muñoz, Matthias Egger, Orestis Efthimiou +3

Missing data is a common problem in medical research, and is commonly addressed using multiple imputation. Although traditional imputation methods allow for valid statistical infer…

stat.ME2020

Introducing the treatment hierarchy question in network meta-analysis

Georgia Salanti, Adriani Nikolakopoulou, Orestis Efthimou +3

Background: Comparative effectiveness research using network meta-analysis can present a hierarchy of competing treatments, from the least to most preferable option. However, the r…

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