These Author Guidelines help ensure clarity, consistency, ethical compliance, and high-quality manuscript preparation for all submissions to the Clinical Journal of Obstetrics and Gynecology (CJOG). Following these instructions closely will help accelerate peer review and improve chances of acceptance. All submissions must adhere to the requirements outlined on this page, which align with COPE, ICMJE, WAME, and international biomedical reporting standards.

General Submission Requirements

All manuscripts must be submitted in English (US spelling preferred).
Manuscripts should be original, unpublished, and not under review elsewhere.
Authors must ensure accurate, transparent reporting of research.
All submissions must be uploaded in Microsoft Word (.doc or .docx) format.
All metadata fields (title, authors, affiliation, ORCID, abstract, references) must be completed during OJS submission.

Manuscript Structure

All research manuscripts should follow the standard IMRaD structure:

Title Page
Abstract (structured)
Keywords
Introduction
Materials and Methods
Results
Discussion
Conclusion
Declarations / Ethical Statements
References
Tables, Figures, Supplementary Materials

Title Page Format

Your title page must include:

Full manuscript title (concise, descriptive, and precise)
Author names in correct order
Affiliations (department, institution, city, country)
Corresponding author details:
- Name
- Email
- Phone (optional)
- ORCID identifier
Funding information
Conflict of interest declarations
Acknowledgments

Abstract Guidelines

Research articles must include a structured abstract of 250–300 words using these headings:

Background
Objectives
Methods
Results
Conclusion

Review articles may use an unstructured abstract of 200–250 words.

Keywords

Provide 5–6 keywords reflecting core themes. Use MeSH terms when possible.

Introduction

The introduction should present background, problem statement, gaps in current knowledge, and study rationale.

Materials and Methods

Must include sufficient detail for reproducibility. Include:

Study design
Study setting (clinic, hospital, population)
Sample size and justification
Ethical approval (IRB approval number)
Inclusion/exclusion criteria
Instrumentation and software
Statistical analysis methods
Registration number for clinical trials

Results

Present findings objectively, using descriptive and inferential statistics where applicable. Avoid interpretation in this section.

Discussion

Interpret results, compare with previous literature, discuss strengths/limitations, and address implications for clinical practice.

Conclusion

Summarize key findings and highlight clinical or research significance.

Ethical Declarations (Required)

Conflict of interest: Declare all conflicts.
Funding: Provide sponsor details.
IRB Approval: Required for all human-subject research.
Informed Consent: Mandatory for patient-related articles.
Animal Ethics: For animal studies, provide institutional approval.
Data Availability Statement:

Reporting Guidelines

Authors must adhere to international reporting frameworks:

CONSORT (Clinical Trials)
PRISMA (Systematic Reviews)
STROBE (Observational Studies)
CARE (Case Reports)
ARRIVE (Animal Research)

Formatting Requirements

Font: Times New Roman or Arial
Font Size: 12 pt
Line Spacing: 1.5
Margins: 1 inch
Justified text alignment
Number all pages consecutively

Figures and Tables

Figures

Upload figures as separate high-resolution files (300 dpi minimum)
Accepted formats: PNG, JPEG, TIFF, SVG
Number figures sequentially (Figure 1, Figure 2, etc.)
Provide descriptive captions below each figure

Tables

Provide tables in editable format (not images)
Number tables sequentially
Provide titles above and notes below each table

Supplementary Materials

Supplementary files may include:

Datasets (CSV, XLSX)
Methodological appendices
High-resolution images
Videos (MP4)
Transcripts or protocols

Reference Style

CJOG follows the NLM/Vancouver reference style.

Basic Format

Author(s). Title of article. Journal Name. Year;Volume(Issue):Page–Page.

Examples

Journal article:

Smith A, Jones B. Effects of gestational diabetes on fetal outcomes. CJOG. 2023;12(4):245–252.

Book:

Roberts N. Obstetrics and Maternal Care. 2nd ed. Springer; 2020.

Preprint Policy

CJOG permits the posting of preprints on:

medRxiv
bioRxiv
Research Square
OSF

Authors must update preprint entries with:

DOI of the final article
Published citation

AI Usage Policy for Authors

AI tools (ChatGPT, Bard, etc.) may be used for language support but must be disclosed. Authors remain fully responsible for all AI-assisted text, data, and citations.

Submission Preparation Checklist

Before submission, authors must confirm that:

The manuscript adheres to structure and formatting
Figures and tables are numbered and captioned correctly
All coauthors approved the final version
IRB approval is documented where required
References follow Vancouver style
Data availability and ethical statements are complete

Submission Process

Register or log in to the CJOG OJS portal
Begin new submission
Upload manuscript and supplementary files
Enter all metadata and author details
Confirm compliance with guidelines
Submit for editorial review

Post-Submission Workflow

Initial editorial screening (1–3 days)
Plagiarism and technical checks
Peer review assignment
Decision: Accept / Minor Revision / Major Revision / Reject
Typesetting and production after acceptance

Frequently Asked Questions (FAQs)

How long does peer review take?

Typically 2–3 weeks, depending on reviewer availability.

Can authors suggest reviewers?

Yes, but final selection is at editor discretion.

Are there page or word limits?

No strict limits, but manuscripts should be concise and focused.

Does CJOG accept mixed-methods or interdisciplinary research?

Yes, provided it relates to obstetrics, gynecology, or maternal-fetal medicine.

Are case reports eligible?

Yes, provided sufficient clinical relevance and novelty.

Conclusion

These Author Guidelines support transparent reporting, efficient review, and consistent presentation of scientific work. Adherence improves the quality of submissions and helps maintain the academic integrity that CJOG stands for.