FMSZ 2026 Annual Congress Presentation by Dr Stephen Ganyani

Value of the Information & Strength of the Argument

The value of this presentation lies in its direct clinical relevance: it demonstrates that the choice of fetal growth standard can materially change the classification of growth restriction or macrosomia, which in turn influences antenatal management. The argumentation is supported by quantitative results showing distinct classification discrepancies among the three charts for the same measured pregnancies. The presenter clearly states the study’s primary objective as classification rather than superiority, which is a methodologically sound approach. However, the presentation could have been enhanced by a more detailed discussion of statistical methods, confidence intervals, and potential confounding factors (e.g., ethnicity, gestational age distribution). The argumentation is coherent but relies heavily on descriptive comparisons without formal inferential testing, limiting the strength of the claims.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is adequate for a congress presentation: the study uses a defined cohort, a held-out validation set, and explicitly addresses measurement convention differences (outer-to-outer vs. outer-to-inner). The sources cited are the WHO and INTERGROWTH-21st international standards, which are well-established. No external links were provided in the description, and the presentation did not cite specific publications, only the standards themselves. The title accurately describes the content as a congress presentation by Dr Ganyani, without overclaiming. The adequacy between title and content is high. No public comments were available for trend analysis.

The title accurately reflects the content: a congress presentation on comparing fetal growth charts.

7/10

Presentation of a retrospective comparative study with a clear methodology and held-out validation, but limited peer-review and only one presenter.

Markers derived by PSI from the transcript: the creator did not define chapters.

• 00:30Introduction: Three-way comparison of candidate Zimbabwean, WHO, and INTERGROWTH-21st fetal growth charts.
• 02:30Key message: Choice of growth standard can alter diagnostic classification.
• 05:00Methodology: retrospective comparison on 575 held-out pregnancies, with inclusion criteria.
• 08:00Results: Classification rates differ (7.3% vs 4.7% vs 4.1% below 10th centile).
• 12:00Discussion: Three-chart agreement high for weight (89%) but lower for head circumference (62.6%).
• 15:00Conclusion: Charts are not interchangeable; protocol and chart must be used as a linked package.

• WHO fetal growth charts — Mentioned as an international reference used for comparison in the study.
• INTERGROWTH-21st fetal growth standards — Mentioned as an international reference used for comparison in the study.