<prompt> The BEST indication of a difficult intubation in morbid obesity:Mallampatti ScoreNeck circumferenceLimited neck movementBody weight  <response>: Factors looked at included: height, weight, neck circumference, width of mouth opening, sternomental distance, thyromental distance and Mallampati score Logistic regression identified neck circumference as the best single predictor of problematic intubation.In patients with a large neck, the view during direct laryngoscopy was poorer. 