What Our Systematic Review Service Delivers
A systematic review is a rigorous, reproducible method of identifying, evaluating, and synthesizing all available evidence on a clearly defined research question. Unlike traditional narrative reviews, a systematic review follows a predefined protocol, uses comprehensive search strategies across multiple databases, and applies transparent criteria for study selection and quality assessment.
At Research Gold, our systematic review service provides end-to-end support from initial concept through to a publish-ready manuscript. Every project is led by PhD-level methodologists who have published systematic reviews in peer-reviewed journals. We follow Cochrane Handbook methodology (Higgins et al., 2023) and report all findings according to PRISMA 2020 guidelines (Page et al., 2021).
Whether you are a PhD candidate working on your doctoral thesis, a clinical researcher preparing a journal submission, or a grant applicant building your evidence base, our team delivers a manuscript that is ready to withstand the most rigorous peer review.
Our Systematic Review Process: Step by Step
Every systematic review we deliver follows a structured, transparent methodology. Here is what each stage involves:
1. Consultation and Scoping
We begin with a detailed discussion of your research question, target population, intervention, comparators, and outcomes. Using the PICO framework, we refine your question to ensure it is specific, answerable, and aligned with your publication or thesis goals. You can use our free PICO framework generator to structure your research question before we begin.
2. Protocol Development and PROSPERO Registration
Before any searching begins, we develop a formal protocol following PRISMA-P guidelines. This protocol documents every methodological decision, from databases searched to eligibility criteria and planned analyses. We can register your protocol with PROSPERO, the international prospective register of systematic reviews, using our PROSPERO registration formatter.
3. Comprehensive Search Strategy
Our information specialist designs a sensitive, reproducible search strategy using Boolean operators, MeSH terms, and free-text synonyms. We search a minimum of three databases (typically PubMed/MEDLINE, Embase, and Cochrane CENTRAL) plus discipline-specific databases such as Scopus, CINAHL, PsycINFO, or Web of Science. Every search is fully documented and reproducible. Try our free search strategy builder to see how we construct database queries.
4. Study Selection (Dual-Reviewer Screening)
All titles and abstracts are screened independently by two reviewers. Full-text articles that pass initial screening undergo a second round of dual-reviewer evaluation against your predefined eligibility criteria. Disagreements are resolved through discussion or a third reviewer. We calculate Cohen's kappa to measure inter-rater reliability, which you can verify using our inter-rater reliability calculator.
5. Data Extraction
We design standardized data extraction forms tailored to your review question. Two reviewers independently extract study characteristics, participant demographics, interventions, outcomes, and effect measures. Our data extraction form builder gives you a preview of how we structure these forms.
6. Risk of Bias Assessment
Depending on the study designs included, we apply the appropriate quality assessment tools:
- RoB 2 for randomized controlled trials (Sterne et al., 2019)
- ROBINS-I for non-randomized studies of interventions
- Newcastle-Ottawa Scale for observational studies (cohort and case-control)
- JBI Critical Appraisal Checklists for qualitative and mixed-methods studies
Assessments are conducted independently by two reviewers. You can explore these tools yourself using our free risk of bias assessment tool and Newcastle-Ottawa Scale calculator.
7. Evidence Synthesis
Findings are synthesized narratively and, where appropriate, quantitatively through meta-analysis. We produce summary of findings tables, forest plots, and GRADE certainty of evidence assessments. If meta-analysis is warranted, we calculate pooled effect sizes using random-effects or fixed-effect models implemented in R (metafor and meta packages) or Stata.
8. Manuscript Writing
The final deliverable is a complete, publish-ready manuscript following IMRAD structure (Introduction, Methods, Results, Discussion). We format it to the specifications of your target journal, including word limits, citation style, figure requirements, and supplementary materials. If the review is for a doctoral thesis, we adapt the format to your university's requirements.
What Is Included in Every Systematic Review
| Deliverable | Details |
|---|---|
| Protocol | PRISMA-P compliant, PROSPERO-ready |
| Search strategy | Minimum 3 databases, fully documented and reproducible |
| Study selection | Dual-reviewer screening with documented exclusion reasons |
| PRISMA 2020 flow diagram | Editable PowerPoint and PDF |
| Data extraction tables | Standardized Excel workbook |
| Risk of bias assessment | RoB 2, ROBINS-I, Newcastle-Ottawa Scale, or JBI as appropriate |
| Narrative synthesis | Summary of findings tables |
| Manuscript draft | IMRAD format, journal or thesis-ready |
| Figures and tables | High-resolution PNG and PDF |
| Unlimited revisions | All tiers include unlimited revisions |
Pricing
Our systematic review service starts at $895 with transparent, tier-based pricing:
| Tier | Multiplier | Delivery Timeline | Starting Price |
|---|---|---|---|
| Bronze | 1x | 4-5 weeks | $895 |
| Silver | 1.2x | 2-3 weeks | $1,074 |
| Gold | 1.5x | 1 week | $1,343 |
All tiers include unlimited revisions. Need a systematic review combined with meta-analysis? Our bundle starts at $1,500. Visit our pricing page for full details or get a free quote for your specific project.
The median cost of conducting a systematic review in-house is estimated at $141,194 based on 1,139 hours of researcher labor (Michelson and Reuter, 2019). Our service delivers a publication-ready systematic review at a fraction of that investment.
How We Compare
| Feature | Research Gold | Freelancer Platforms | DIY (In-House) |
|---|---|---|---|
| PhD methodologists | Yes, every project | Varies widely | Depends on team |
| PRISMA 2020 compliance | Guaranteed | Not guaranteed | Self-managed |
| Dual-reviewer screening | Included | Rarely offered | Requires 2+ team members |
| Cochrane Handbook methodology | Standard | Varies | Self-managed |
| Unlimited revisions | All tiers | Usually limited | N/A |
| Reproducible R/Stata code | Included with meta-analysis | Rarely provided | Depends on skills |
| Turnaround time | 1-5 weeks | Unpredictable | 6-18 months typical |
| PROSPERO registration | Available | Rarely offered | Self-managed |
| Cost | From $895 | $500-$5,000+ | $141,194 median in-house |
Who Uses Our Systematic Review Service
- PhD candidates needing a publication-quality systematic review for their doctoral thesis
- Clinical researchers preparing manuscripts for Q1-Q4 journals
- Grant applicants who need a preliminary evidence synthesis to support funding proposals
- Medical residents and fellows building their publication record
- Research teams facing tight deadlines who need experienced methodologists to handle the heavy lifting
- International researchers whose first language is not English
Testimonials
"Rebuilt my search strategy across four databases, handled dual-reviewer screening, and delivered a PRISMA-compliant manuscript. Published after one round of revisions."
Verified Client, Senior Lecturer, Epidemiology (Published in International Journal of Epidemiology, Q1)
"My supervisor kept finding methodology gaps I couldn't fix. They restructured everything and the PRISMA flow diagram was exactly what my committee needed. Thesis approved without revisions."
Verified Client, PhD Candidate, Nursing
Frequently Asked Questions
See the FAQ section below for detailed answers to the most common questions about our systematic review service.
Get Started
Ready to begin your systematic review? Share your research question and deadline with us, and we will reply with a detailed quote and timeline within 2 hours.
Get a free quote or explore our full range of evidence synthesis services, including meta-analysis, scoping review, biostatistics consulting, and medical manuscript writing.
View our transparent pricing to see exactly what each tier includes.