MedCalcHub stores your favorites, history, and saved calculations locally in your browser using localStorage. This data never leaves your device.
Optional advertising, when enabled, may use third-party cookies or similar technologies. You can accept or reject advertising below.
2 calculators
Sleep disorder screening tools for evaluating excessive daytime sleepiness and obstructive sleep apnoea risk. The Epworth Sleepiness Scale measures propensity to fall asleep in eight everyday situations, distinguishing pathological sleepiness from normal variation. The STOP-BANG questionnaire screens for OSA using four symptoms (Snoring, Tiredness, Observed apnoea, Pressure/hypertension) and four demographic measures (BMI, Age, Neck circumference, Gender). Both are validated screening instruments, not diagnostic tests — a positive screen should prompt polysomnography or home sleep testing. The STOP-BANG has high sensitivity but moderate specificity, making it effective for ruling out OSA when negative.
Every tool in this domain is linked below, each with its own formula, inputs, and interpretation notes. Starting from the clinical area instead of the subject? The same calculators are grouped on the specialties pages, the full alphabetical list collects everything in one place, and the comparison tool lines up three tools side by side.
The Epworth Sleepiness Scale (Johns 1991) measures daytime sleepiness by asking how likely the patient is to doze in eight common situations, each scored 0–3 (total 0–24). Higher scores indicate greater sleep propensity: 0–10 normal, 11–14 mild, 15–17 moderate, and ≥ 18 severe excessive daytime sleepiness.
General MedicineThe STOP-BANG score (Chung 2008/2012) is an eight-item screening tool for obstructive sleep apnea (OSA). Each of the eight items (Snoring, Tiredness, Observed apnea, high blood Pressure, BMI > 35, Age > 50, Neck circumference > 40 cm, male Gender) scores 1 point (total 0–8). Scores of 3–4 indicate intermediate and 5–8 high OSA risk; a score ≥ 3 is highly sensitive for moderate (93%) and severe (100%) OSA and can help rule out disease when negative.
General Medicine