Morpho-spiro-voice-acoustic differences between smokers and non-smokers

What is it about?

This study compares smokers and non-smokers across three linked domains: morphology (body size and shape), spirometry (lung function), and voice acoustics (objective properties of the speaking and sustained voice). It quantifies group differences in standard anthropometrics, key spirometric indices (e.g., FEV₁, FVC, FEV₁/FVC, PEF), and acoustic markers such as fundamental frequency, formants, jitter, shimmer, and harmonics-to-noise ratio. Participants are stratified by sex and smoking exposure (status and pack-years), and analyses adjust for potential confounders like age and body mass. The study also examines links between lung function and voice features, testing whether acoustic markers can act as non-invasive indicators of smoking-related airway changes. Findings aim to inform low-cost screening and counselling strategies in public health and sports science.

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