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Personal profile

Research interests

Nicky's research interests concern methodology for evidence synthesis, and use of evidence in decision modelling. This includes methods for synthesis of studies informing Markov model parameters, synthesis of evidence on components of complex interventions, bias adjustment in pairwise and network meta-analysis, allowing for uncertainty due to missing data, extrapolation of survival curves, and combining evidence with heterogeneously reported (but related) outcomes. She has also worked on methods and applications of Value of Information calculations that can be used to prioritise and design new research by comparing the expected benefit in the reduction of uncertainty in the optimal policy decision with the cost of a proposed new study. Nicky leads the Multi-Parameter Evidence Synthesis research group, is Director of the NICE Guidelines Technical Support Unit, associate editor for the journal Medical Decision Making, a Fellow of the Royal Statistical Society, and a member of the NICE Technology Appraisals Committee.

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Research Output

Cost-Effectiveness Analysis of Baseline Testing for Resistance-Associated Polymorphisms to Optimize Treatment Outcome in Genotype 1 Noncirrhotic Treatment-Naïve Patients With Chronic Hepatitis C Virus

Fawsitt, C. G., Vickerman, P., Cooke, G. S., STOP-HCV Consortium & Welton, N. J., Feb 2020, In : Value in Health. 23, 2, p. 180-190 11 p.

Research output: Contribution to journalArticle (Academic Journal)

Open Access
  • 38 Downloads (Pure)
    Open Access
  • 40 Downloads (Pure)

    Equivalence of entropy balancing and the method of moments for matching-adjusted indirect comparison

    Phillippo, D. M., Dias, S., Ades, A. E. & Welton, N. J., 7 Jul 2020, In : Research Synthesis Methods. 11, 4, p. 568-572 5 p.

    Research output: Contribution to journalArticle (Academic Journal)

    Open Access
  • 14 Downloads (Pure)


    • 1 Participation in workshop, seminar, course

    Evidence Synthesis for Decision Making Short Course

    Nicky J Welton (Participant)

    20 Oct 2013

    Activity: Participating in or organising an event typesParticipation in workshop, seminar, course

    Supervised Work

    Calibration of Treatment Effects in Network Meta-Analysis using Individual Patient Data

    Author: Phillippo, D. M., 28 Nov 2019

    Supervisor: Welton, N. (Supervisor) & Dias, S. (Supervisor)

    Student thesis: Doctoral ThesisDoctor of Philosophy (PhD)