Marrissa Martyn-St James BSc, MSc, PhD (Leeds Metropolitan University)


University of Sheffield
Regent Court, 30 Regent Street
Sheffield, S1 4DA

Office: 1018

Tel: (+44) (0)114 222 4225
Fax: (+44) (0)114 222 0749


ORCiD: 0000-0002-4679-7831


I joined ScHARR in July 2013 and work in HEDS undertaking systematic reviews of clinical effectiveness of healthcare interventions. I have a background in systematic review and meta-analysis and have undertaken reviews in the areas of: exercise for osteoporosis, quality of life outcomes in cancer trials, treatments for infectious childhood diseases, beta thalassemia, cancer, and epilepsy. I also have experience of producing Cochrane Reviews of treatments for chronic wounds and interventions for drug using offenders.

Research interests

My research interests include:
• Systematic reviews of clinical effectiveness for healthcare interventions
• Development of methods for systematic reviewing and evidence synthesis including meta-analysis, meta-regression, individual patient data analysis and mixed-treatment comparisons/network meta-analysis
• Critical appraisal and risk of bias assessment methods for systematic reviews
• Development of methods for rapid reviews

Teaching Interests

My teaching interests include systematic review, critical appraisal and meta-analysis methods for trials of clinical effectiveness. I also currently lead the ScHARR Systematic Reviews and Meta-Analysis course


I have recently worked on reviews within HEDS in the following areas:
• Treat-to-target strategies in rheumatoid arthritis
• Models of nursing teams in hospital ward for Health Education England (HEE)
• Medication errors in the NHS for the Policy Research Unit in Economic Evaluation of Health & Care Interventions (EEPRU)
• Treatments for osteoporosis (NICE)
• I am currently working on a NIHR funded RfPB review of sleep interventions to improve mental health

Key Publications

Extended List of Publications

Journal articles