Jemma Walker

Statistician working in a joint post between LSHTM and Public Health England (PHE) on the HPRU immunisation grant. This grant is to analyse the safety and efficacy of vaccines in the UK. I have a background in statistical genetics and my PhD was in Bayesian methodology for genome wide association studies. I am currently working on a number of vaccine related projects with Sara Thomas (LSHTM) and Nick Andrews (PHE) using CPRD and HES data. These include analysis of the effectiveness of the rotavirus vaccine (introduced in the UK in July 2013), changing varicella consultation rates, and non-specific effects of BCG vaccine. I am the PhD statistical advisor for Anu Jain (social determinates of uptake of zoster vaccine) and Maria Peppa (electronic health records to investigate the safety of immunisation during pregnancy).

Contact details

Related Publications

Impact of the national rotavirus vaccination programme on acute gastroenteritis in England and associated costs averted.

Thomas, S.L. ; Walker, J.L. ; Fenty, J. ; Atkins, K.E. ; Elliot, A.J. ; Hughes, H.E. ; Stowe, J. ; Ladhani, S. ; Andrews, N.J. ;
Impact of the national rotavirus vaccination programme on acute gastroenteritis in England and associated costs averted.
Vaccine, 2016;

Trends in the burden of varicella in UK general practice.

Walker, J.L. ; Andrews, N.J. ; Mathur, R. ; Smeeth, L. ; Thomas, S.L. ;
Trends in the burden of varicella in UK general practice.
Epidemiol Infect, 2017; :1-5

Application of causal inference methods in the analyses of randomised controlled trials: a systematic review.

Farmer, R.E. ; Kounali, D. ; Walker, A.S. ; Savović, J. ; Richards, A. ; May, M.T. ; Ford, D. ;
Application of causal inference methods in the analyses of randomised controlled trials: a systematic review.
Trials, 2018; 19(1):23

Identifying social factors amongst older individuals in linked electronic health records: An assessment in a population based study.

Jain, A. ; van Hoek, A.J. ; Walker, J.L. ; Mathur, R. ; Smeeth, L. ; Thomas, S.L. ;
Identifying social factors amongst older individuals in linked electronic health records: An assessment in a population based study.
PLoS One, 2017; 12(11):e0189038

Inequalities in zoster disease burden: a population-based cohort study to identify social determinants using linked data from the UK Clinical Practice Research Datalink.

Jain, A. ; van Hoek, A.J. ; Walker, J.L. ; Forbes, H.J. ; Langan, S.M. ; Root, A. ; Smeeth, L. ; Thomas, S.L. ;
Inequalities in zoster disease burden: a population-based cohort study to identify social determinants using linked data from the UK Clinical Practice Research Datalink.
Br J Dermatol, 2018;

Effectiveness of herpes zoster vaccination in an older United Kingdom population.

Walker, J.L. ; Andrews, N.J. ; Amirthalingam, G. ; Forbes, H. ; Langan, S.M. ; Thomas, S.L. ;
Effectiveness of herpes zoster vaccination in an older United Kingdom population.
Vaccine, 2018;