Curriculum Vitae

Ervin Zadgari

Medical Student · Independent Biostatistician

Meta-analytic methods, dose-response modelling & research-grade data visualisation. Contributor to published systematic reviews — every statistical pipeline designed and executed in R.

Google Scholar ↗ ORCiD ↗ Rasht, Iran
Profile 01

Final-year medical student and independent biostatistician specialising in meta-analytic methods, dose-response modelling, and research-grade data visualisation. Contributor to published systematic reviews and an active freelance collaborator across international research teams. All statistical pipelines designed and executed in R.

Education 02

Doctor of Medicine (MD)

Guilan University of Medical Sciences — Rasht, Iran

Final year: September 2026 – September 2027. Expected graduation September 2027. Research focus sustained throughout clinical training.

Publications 03
01

Impact of advanced cardiac damage in severe aortic stenosis on short-term and mid-term mortality and rehospitalisation after TAVI: a systematic review and meta-analysis

Baay M, Hosseini Z, Zadgari E, Moayerifar M, Taghavi S, Sammak Salekdeh M, et al.

Heart (BMJ Publishing Group), 2026 Mar 6 · DOI ↗

Analysis, visualisation & writing
02

The global prevalence of depression and anxiety among fibromyalgia patients: A systematic review and meta-analysis

Jafari M, Zadgari E, Amouzadeh Lichahi M, Vesali Moghaddam A, Amirian B, Kazemian N, et al.

J Affect Disord. 2025 Sep 16;393(Pt A):120340 · DOI ↗

First study to examine both conditions simultaneously at global scale
03

Diagnostic performance of machine learning and deep learning algorithms for thyroid cancer metastasis: A systematic review and meta-analysis

Amouzadeh Lichahi M, Anvari S, Hemmati H, Zadgari E, Jafari M, Mosavi Mirkalaie SM, et al.

BMC Medical Informatics and Decision Making, 2025 Dec 8 · DOI ↗

Full data analysis, visualisation & results
04

Recurrence of arthroscopic treatment of pigmented villonodular synovitis of the knee: A systematic review and meta-analysis

Keyhani S, Soleymanha M, Vosoughi F, Nikibakhsh A, Zadgari E, Mousavi M, LaPrade RF

J Exp Orthop. 2025 Jan;12(1):e70169 · DOI ↗

Statistical analysis & visualisation
05

The prevalence of fluoroquinolone-resistant E. coli in animals and animal products: A systematic review and meta-analysis

Sedigh Ebrahim-Saraie H, Amini ME, Hasannejad-Bibalan M, Zadgari E, Bakhshi A

Journal of Medical Bacteriology, 2024 Nov 16 · DOI ↗

Statistical analysis & meta-analytic methods
Conference Presentations 04

Annual Congress — Iranian Society of Vascular & Endovascular Surgery

Ramsar, Iran

Presented findings from the thyroid cancer ML/DL diagnostic performance meta-analysis. Responsible for complete statistical analysis, all visualisations, and the results section of the conference submission.

Selected Freelance Projects 05

~12 completed engagements

  1. 01

    Time-series analysis for an American research team

    Full pipeline in R — data wrangling, modelling, ggplot2 visualisation

    Time-series Yale, USA
  2. 02

    Comparative effectiveness of TENS, NMES & IFC for diabetic peripheral neuropathy

    Systematic review & meta-analysis — pooled effect sizes, heterogeneity, sensitivity analysis

    Meta-analysis USA
  3. 03

    Dose-dependent meta-analysis of insulin administration across dosage levels

    Dose-response modelling, univariate + multivariate pooling, spline curves

    Meta-analysis Iran
  4. 04

    TAVI-cancer covariate meta-analysis — mortality predictors post-TAVI in cancer patients

    Univariate & multivariate pooling, OR→HR conversion, ρ-sensitivity scenarios (0.0 / 0.3 / 0.5 / 0.7)

    Meta-analysis Iran
  5. 05

    Nutritional value meta-analysis of Kratom plant alkaloids

    Pooled prevalence and compositional analysis

    Meta-analysis Iran-Italy
  6. 06–12

    Additional systematic review, biostatistics & visualisation engagements

    Domestic and international clients — details available on request

    Various Mixed
Technical Skills 06

Statistical Methods

  • Meta-analysis
  • Umbrella review
  • Meta-regression
  • Dose-response modelling
  • Heterogeneity diagnostics
  • Sensitivity analysis
  • Survival analysis (HR / KM)
  • Incidence & prevalence
  • Time-series analysis
  • Random & mixed effects

Software & Packages

  • R
  • ggplot2
  • metafor
  • tidyverse
  • forecast
  • ggpubr
  • pROC
  • lme4
  • rstatix
  • janitor
  • scales
  • purrr
  • readxl / writexl