Clinical assessment helps determine the impact of the patient's snoring, helps decide whether the patient needs a sleep study to rule out obstructive sleep apnoea (OSA), and helps identify whereabouts in the upper airway the snoring is originating from (which helps target treatment).

Unfortunately, history and clinical findings have been shown to lack sensitivity and specificity for diagnosing OSA. It is estimated that history and examination can only predict OSA in 50% of patients, although male sex, snoring, and increased BMI have been found to be useful predictors of OSA.[22][23]

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