• Responsible for the Research Evidence Group

I have background on public health medicine, health statistics, and health services research; have been conducting systematic reviews and modelling for health technology assessment, and research synthesis related methods. My research interest also includes primary research on health care interventions and health services research. 

Key research interests

• Evidence-based medicine research; systematic reviews, meta-analysis and modelling for evaluating a wide range of health care interventions.
• Methodological research concerning evidence-based medicine and evidence synthesis, including  publication and related biases, assessment of non-randomised studies, indirect treatment comparison, network meta-analysis, and evaluation of complex healthcare interventions.
• Primary research on public health interventions, health services research, the control of chronic conditions, disability and rehabilitation, smoking cessation and tobacco control.

Selected publications  

• Vaccination against COVID-19 and society's return to normality in England: a modelling study of impacts of different types of naturally acquired and vaccine-induced immunity. in: BMJ Open. 2021, 16 Nov. 11,eo53507.

• Post-lockdown SARS-CoV-2 nucleic acid screening in nearly ten million residents of Wuhan, China. Nat Commun. 2020 Nov 20;11(1):5917. doi: 10.1038/s41467-020-19802-w.

• Online information on electronic cigarettes: comparative study of relevant websites from Baidu and Google search engines. JMIR, 2020; https://doi.org/10.2196/14725.

• Impact of the NHS Stop Smoking Services on smoking prevalence in England: a simulation modeling evaluation. Tobacco Control 2020; 29:200-206

• Cumulative subgroup analysis to reduce waste in clinical research for individualised medicine. BMC Medicine, 2016, 14:197. DOI: 10.1186/s12916-016-0744-x

• Increasing value and reducing waste: addressing inaccessible research. Lancet. 2014; Jan 7. pii: S0140-6736(13)62296-5. doi: 10.1016/S0140-6736(13)62296-5. 

• Inconsistency between direct and indirect comparison: a meta-epidemiological study. BMJ, 2011; 343:d4909 doi: 10.1136/bmj.d4909.

Research methods, systematic review and meta-analysis, evidence based practice, critical appraisal of research evidence  

Teaching Activities

I have extensive experience in systematic reviews and simulation modelling for evaluating healthcare interventions. I have been conducting methodological research concerning evidence synthesis, including heterogeneity in meta-analysis, publication and related biases, assessment of non-randomised studies, indirect and mixed treatment comparison for evaluating competing healthcare interventions, and methods for synthesizing evidence for the evaluation of complex healthcare interventions. My research interest also includes primary research on public health interventions, health services research, the control of chronic conditions, disability and rehabilitation, smoking cessation and tobacco control.