Predicting the need for ventilatory assistance.
D000758:Anesthesia; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D011300:Preoperative Care; D012121:Respiration, Artificial; D012129:Respiratory Function Tests; D012131:Respiratory Insufficiency / Q000175:diagnosis*