a. When is it indicated to screen for dysphagia in patients with PD?  The statement is based on core literature consisting of Class II [21], III [23] and IV [20, 24] level studies and expert opinion. -The search for symptoms or signs that are suspicious for the presence of dysphagia is recommended at the first neurologic visit. If symptoms or signs are detected, a screening test is always recommended. Re-evaluations are recommended at every follow-up visit, preferably at least once a year. b. When should dysphagia be suspected in patients with PD? Statements are based on core literature consisting of Class I [5, 35], III [28, 33] and IV [27, 29–31, 34, 36] level studies and expert opinion. - In the presence of at least one of the conditions listed below:   Increased eating time (meal duration), post-swallowing coughing, post-swallowing gurgling voice, drooling, choking, breathing disturbance, unintentional weight loss, difficulty to swallow pills, sensation of retention of food, pneumonia episode(s). - In patients who answer ‘yes’ to either of the following questions:    "have you experienced any difficulty in swallowing food or drink?"    "have you ever felt choked with food?" Comment: The risk of dysphagia increases with the number of symptoms or signs observed, age, and disease progression.

c. What clinical tools should be used to screen for dysphagia in patients with PD? Statements are based on core literature consisting of Class III [38, 43] and IV [36, 37, 39, 41, 42, 44–46] level studies and expert opinion. - The swallowing disturbance questionnaire (SDQ) represents the most appropriate self-reported patient test for screening swallowing disorders in PD. -The MDT-PD test, SCAS-PD and ROMP may be also considered valid questionnaire-based tools for dysphagia screening in PD. - Positive results at a screening test impose further investigation with diagnostic tests to confirm the presence of dysphagia and to assess its severity. Comment: A thorough medical history evaluation is also needed to complete the screening assessment of dysphagia in PD.