HSI Calculator (Heaviness of Smoking)

About HSI Calculator (Heaviness of Smoking)

The HSI Calculator provides a rapid and validated assessment of nicotine dependence, specifically the Heaviness of Smoking Index. This essential tool is designed for clinicians, researchers, and public health professionals seeking a quick, objective measure of an individual's smoking severity. By distilling key aspects of smoking behavior into a simple score, it facilitates the early identification of high dependence levels. The calculator uses responses to just two critical questions—cigarettes smoked per day and time to first cigarette—to generate a score that aids in tailoring effective cessation interventions and monitoring progress. It serves as a practical, evidence-based instrument for informing clinical decisions and public health strategies.