Ahmed M.

🏆 Member of the GNC Council, US | Associate Editor, BMC Trials | Associate Professor, University of Hertfordshire | Lead Biostatistician, HIV Clinic - Cairo University I sit on the other side of peer review. I assess the statistics in manuscripts submitted to a BMC journal, so I know exactly which analyses reviewers challenge - and I build your analysis so it survives that challenge the first time. 📊 THE RECORD - 37 published papers, 1,218 citations, h-index 16, i10-index 22 - 62% in Q1 journals: Hepatology, Journal of Hepatology, JAIDS, Pharmacotherapy, Reviews in Medical Virology - 300+ completed analysis projects - TOP RATED on Upwork (top 10%), consistent 5-star ratings - PhD in Clinical Pharmacy 💎 CURRENT ROLES - Associate Professor, University of Hertfordshire - GAF - Lead Biostatistician, HIV Clinic, Cairo University - Associate Editor, BMC Trials ✅ WHAT I DO Statistical analysis, any design - RCTs, cohorts, case-control, cross-sectional, registries and national survey datasets with complex weighting. Meta-analysis and systematic review - pooled effects, heterogeneity, subgroup analysis, meta-regression, publication bias, network meta-analysis, diagnostic test accuracy meta-analysis, PRISMA, GRADE. Predictive modelling and machine learning - logistic and Cox models, regularised regression, random forest, gradient boosting, discrimination, calibration and internal validation. Diagnostic accuracy - ROC, AUC, optimal cut-offs, sensitivity, specificity, predictive values. Survey psychometrics - EFA, CFA, SEM, mediation and moderation, reliability and validity, measurement invariance. Advanced modelling - linear mixed-effects and multilevel models, longitudinal and time-series analysis, bootstrapping, survival analysis. Health economics - cost-effectiveness, cost-utility, QALYs, ICERs, sensitivity analysis. Thesis support - master's and PhD, from analysis plan and sample size through to the written Methods and Results. 🛠 TOOLS IBM SPSS, Stata, R / RStudio, JASP, AMOS, RevMan, Excel. 📝 WHAT YOU ACTUALLY RECEIVE - APA-formatted tables ready to paste into your manuscript - Publication-quality figures at 300 dpi - Annotated syntax or R script, so your analysis is reproducible - A plain-English explanation of every number, so you can defend it to a supervisor, a committee, or a reviewer I do not send raw output and leave you to interpret it. If you cannot explain your own results, the analysis has not been delivered. Message me with your research question, your study design and your sample size. I will tell you which analysis actually fits before you spend anything.