Snoring Loudness (S)Subjective Symptom Indicator
Acoustic airway turbulence indicator assessing whether snoring is loud enough to be heard through closed doors or regularly awakens a sleeping partner. Persistent heavy snoring indicates partial pharyngeal collapse and airway resistance.
Default: No (Negative)
Daytime Tiredness / Sleepiness (T)Epworth-Correlated Clinical Indicator
Evaluates unrefreshing sleep, persistent morning brain fog, chronic exhaustion, or unintentionally nodding off during daytime tasks like driving, reading, or watching television, reflecting nocturnal oxygen drops and micro-arousals.
Default: No (Negative)
Witnessed Breathing Pauses / Observed Apnea (O)Observational Diagnostic Indicator
Partner or caregiver confirmation of witnessed breathing pauses, choking sounds, or gasping episodes during sleep. This symptom carries the highest positive predictive value for moderate-to-severe obstructive sleep apnea.
Default: No (Negative)
Systemic Arterial Blood Pressure (P)Cardiovascular Comorbidity Indicator
Clinical confirmation of resting systolic blood pressure of 130 mmHg or higher, diastolic blood pressure of 80 mmHg or higher, or current treatment with antihypertensive medications. Nocturnal oxygen drops repeatedly stimulate the sympathetic nervous system.
Default: No (Negative)
Body Mass Index Threshold (B)Anthropometric Cutoff Indicator
Weight-to-height clinical benchmark set at greater than 35 kg/m2. Elevated adipose deposition in the parapharyngeal fat pads directly compresses the upper airway and increases collapse susceptibility during deep sleep.
Default: No (BMI <= 35 kg/m2)
Chronological Age Threshold (A)Demographic Risk Indicator
Age cutoff benchmarked at older than 50 years. Muscle tone in the pharyngeal dilator muscles and nocturnal compensatory airway reflexes naturally decline as the body matures beyond the fifth decade.
Default: No (Age <= 50)
Cricothyroid Neck Circumference (N)Anatomical Airway Measurement
Standardized collarline measurement taken at the cricothyroid membrane: greater than 17 inches (43 cm) for men, or greater than 16 inches (41 cm) for women. Regional neck circumference correlates more directly with airway crowding than overall body weight.
Default: No (<= 17 in male / <= 16 in female)
Biological Sex Classification (G)Endocrine & Anatomical Classifier
Biological male status adds 1 point due to longer upper airway dimensions, greater upper-body fat distribution, and differences in genioglossus muscle responsiveness compared to premenopausal females.
Default: Female (0 points)
