Andrew is a senior statistician in the Nursing Midwifery and Allied Health Professions Research Unit at Glasgow Caledonian University. He was previously a statistician in the Health Services Research Unit at the University of Aberdeen, where he was part of the Centre of Healthcare Randomised Trials and a member of the Evidence Research Group assessing technology appraisals for NICE. Andrew is a co-applicant and statistician on several NIHR-funded trials and systematic reviews of complex interventions and is an expert in network meta-analysis, using both frequentist and Bayesian methodologies. Andrew’s experience of evidence synthesis includes Cochrane reviews, methodological reviews and meta-analyses of both method agreement studies and individual participant data. He is also an Associate Statistical Editor for Cochrane Incontinence.