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Meta-Analysis Services

Combining evidence from multiple studies requires specialized statistical expertise to produce reliable, publication-ready results.

As a meta-analysis consultant, I help researchers and organizations synthesize research findings using rigorous statistical methods.

Whether you’re conducting systematic reviews for publication, supporting clinical guidelines, or informing policy decisions, my expertise ensures your meta-analysis meets the highest methodological standards.

Comprehensive Meta-Analysis Services

Transform scattered research findings into powerful, evidence-based conclusions.

My specialized meta-analysis services help researchers and organizations conduct rigorous systematic reviews and meta-analyses that advance knowledge and inform decision-making.

Study Protocol Development

Design robust meta-analysis protocols that ensure systematic and unbiased evidence synthesis.

  • Develop comprehensive search strategies across multiple databases
  • Create detailed inclusion and exclusion criteria
  • Establish data extraction protocols and quality assessment frameworks
  • Design risk of bias evaluation procedures using validated tools
  • Plan statistical analysis approaches before data collection
  • Prepare protocols that meet PROSPERO registration standards

Statistical Analysis Implementation

Apply advanced meta-analytic methods to synthesize evidence effectively.

  • Conduct traditional pairwise meta-analyses using fixed and random-effects models
  • Perform network meta-analysis for indirect treatment comparisons
  • Implement meta-regression to explore sources of heterogeneity
  • Execute subgroup analyses and sensitivity testing
  • Handle missing data using appropriate imputation methods
  • Apply publication bias detection and correction techniques

Quality Assessment & Risk of Bias

Ensure your meta-analysis maintains the highest standards of evidence evaluation.

  • Conduct systematic quality assessments using established tools (GRADE, Cochrane RoB)
  • Evaluate study heterogeneity and investigate sources of variation
  • Assess publication bias through funnel plots and statistical tests
  • Document methodological limitations and their impact on conclusions
  • Provide transparent reporting of quality assessment procedures
  • Generate evidence profiles that inform recommendation strength

Network Meta-Analysis Expertise

Access specialized methods for comparing multiple treatments simultaneously.

  • Design and implement complex treatment network structures
  • Assess network connectivity and identify potential inconsistencies
  • Perform both frequentist and Bayesian network meta-analyses
  • Generate treatment rankings and probability matrices
  • Create network diagrams and forest plots for multiple comparisons
  • Handle multi-arm trials and complex study designs appropriately

Individual Patient Data Meta-Analysis

Leverage patient-level data for more precise and flexible analyses.

  • Harmonize datasets from multiple studies with different variables
  • Conduct two-stage and one-stage individual patient data analyses
  • Explore treatment-covariate interactions not possible in aggregate data
  • Generate personalized treatment effect predictions
  • Handle missing data patterns across multiple studies
  • Provide more precise estimates of treatment effects in subgroups

Publication Support & Documentation

Deliver results ready for high-impact publication and regulatory submission.

  • Generate PRISMA-compliant flow diagrams and reporting checklists
  • Create publication-ready forest plots, funnel plots, and network diagrams
  • Develop comprehensive methodology sections meeting journal standards
  • Prepare detailed appendices documenting all analytical decisions
  • Craft evidence summaries suitable for clinical guidelines
  • Provide complete code documentation for reproducible research
Let's Talk

Why Work With Me For Your Meta-Analysis Needs?

Specialized expertise in evidence synthesis delivers superior research outcomes.

Methodological Rigor

Apply cutting-edge statistical methods that meet evolving standards for evidence synthesis.

Publication Success

Navigate complex peer review processes with analyses designed for high-impact journals.

Regulatory Compliance

Meet stringent requirements for systematic reviews supporting clinical guidelines and policy decisions.

Time Savings

Focus on your research questions while I handle the technical complexities of meta-analytic methods.

The Meta-Analysis Process

My consulting approach ensures systematic, transparent, and reproducible evidence synthesis.

Protocol Development

We collaborate to develop a comprehensive protocol defining your research questions, search strategy, inclusion criteria, and planned analyses. This includes PROSPERO registration when appropriate.

Data Extraction & Quality Assessment

I implement systematic data extraction procedures and conduct thorough quality assessments using validated tools. We establish inter-rater reliability and document all methodological decisions.

Statistical Analysis

I perform the planned analyses using appropriate meta-analytic methods, including sensitivity analyses and investigation of heterogeneity. Complex network meta-analyses receive specialized attention.

Results & Documentation

You receive comprehensive reports with publication-ready figures, complete methodology documentation, and evidence summaries. All analyses are fully reproducible with documented code.

Ready to synthesize the evidence?
From protocol development to publication-ready results, I provide the specialized expertise needed for rigorous meta-analysis. Let’s transform your research questions into definitive evidence-based answers.

Book Express Consultation

Case Studies

I worked on large medical datasets to answer causal questions related to epidemiological determinants of disease through complex exposures. Challenges included selection bias, confounding, and missing data. I successfully developed a strategy that gave researchers confidence in their results.
I’ve worked with R&D scientists who were simultaneously running multiple experiments to answer important questions about their cutting-edge products that would have a direct impact on various stakeholders. My role was to help in designing and analyzing the experiments, balancing the conceptual purity of the Design of Experiments theory (DoE) with pragmatic concerns relating to costs and timeline. Most of this work is sealed behind a Non-Disclosure Agreement (NDA) which prevents me from elaborating more.

Don’t Just Take My Word For It…

The positive experiences of my happy collaborators showcased through their glowing testimonials, serve as powerful proof of trustworthiness and the impact of the results I deliver. These testimonials offer real-life examples of how I’ve helped research projects succeed. Here are some of their thoughts:

5/5

"He has a deep understanding of statistics, yet is able to skillfully explain complex concepts to people with little-to-no background in statistics both in French and English."

Elsa Brunet-Ratnasginham

Post-doc, UCSF

5/5

"I had never before worked with a biostatistician who speaks the same language as me! [...] Personally, our collaboration has allowed me to reconcile with statistics."

Manon Nayrac

Post-doc, CRCHUM

5/5

"I highly recommend Justin and his team for your data processing needs in order to have a more robust statistical model than the tests we are accustomed to conducting as biologists!"

Gérémy Sannier

Ph.D candidate, CRCHUM

5/5

"Thanks to him, statistics appeared to me as solutions rather than obstacles."

Mathieu Dubé

Research Associate, CRCHUM

Read Full Collaborator Testimonials
Justin Belair - Causal Inference Expert

My Statistics and Causal Inference Expertise

As a university-level statistics lecturer with a substantial LinkedIn following, scientists from all over the world come to me for my unique combination of academic excellence and practical experience in statistics and causal inference.

I’ve applied causal inference methods in varied settings in both academia and industry: in biomedical sciences such as nephrology, immunology, neuroscience, virology, occupational therapy, epidemiology, dermatology, psychiatry, and oncology; in natural sciences such as agronomy, ecology, and zoology; and social sciences such as communication, and psychology. The list keeps on growing!

I am currently writing an advanced textbook that I hope will give a young generation of academic and industry researches the tools needed to grapple with the complexities of causal inference, and maybe even develop a passion for the subject!

Ready to synthesize the evidence?
From protocol development to publication-ready results, I provide the specialized expertise needed for rigorous meta-analysis. Let’s transform your research questions into definitive evidence-based answers.

Let's Talk

Tools and Technologies

Specialized Software

Using industry-standard meta-analysis software including R packages (meta, metafor, netmeta), Stata, and RevMan to ensure accurate and reproducible analyses.

Network Meta-Analysis Platforms

Expertise in both frequentist approaches using R and Stata, plus Bayesian methods implemented through WinBUGS, OpenBUGS, and Stan for complex network comparisons.

Database Management

Proficient with systematic review platforms like Covidence and DistillerSR, plus comprehensive database searching across PubMed, Embase, Cochrane Library, and specialized databases.

Client Industries Served

My statistical consulting expertise extends beyond specific industries, serving clients in fields ranging from R&D in biotechnology and pharmaceuticals to researchers and Principal Investigators (PI) in academia.