Anthropometry for syndromology

Area of Science:

• Anthropometry
• Clinical Genetics
• Pediatrics

Background:

• Facial feature analysis is vital for diagnosing genetic syndromes.
• Existing anthropometric data primarily originates from Western populations, with limited studies from India.
• Population-specific facial measurements are necessary due to variations across diverse ethnic groups.

Purpose of the Study:

• To establish normative anthropometric data for facial features in South Indian children.
• To provide reference standards for detecting deviations indicative of genetic syndromes.
• To compare South Indian facial measurements with existing international and regional data.

Main Methods:

• A cross-sectional study involving 850 children aged 0-11 years.
• Measurement of key facial parameters: inner and outer canthal distances, nasolabial distance, ear length, ear set, and hand length.
• Calculation of interpupillary distance and the AF/AT ratio.

Main Results:

• Presentation of average measurements (50th percentile) and range (3rd and 97th centiles) for studied parameters.
• Detailed tables provide normative data specific to the South Indian pediatric population.
• Comparison of findings with existing studies highlights population-specific variations.

Conclusions:

• The study provides essential normative data for South Indian children, aiding in the diagnosis of genetic syndromes.
• Pediatricians should utilize objective measurements rather than subjective visual impressions for accurate syndrome diagnosis.
• Establishing population-specific anthropometric standards is critical for improving diagnostic accuracy in diverse populations.