Document Classification

Section Type: RESULTS

Text: Clinical signs of respiratory depression included an increase in supplemental oxygen use in 25 of the 74 propofol patients and 31 of the 71 propofol/alfentanil patients (effect size 9. 9 %, 95 % CI = -5. 9 % to 25. 7 %), the use of bag-valve mask apparatus in seven patients in the propofol group and 12 in the propofol/alfentanil group (effect size = 5. 6 %, 95 % CI = -3. 5 % to 18. 4 %), airway repositioning in 13 propofol patients and 20 propofol/alfentanil patients (effect size = 10. 6 %, 95 % CI = -3. 0 % to 24. 2 %), and stimulation to induce breathing in 11 propofol patients and 20 propofol/alfentanil patients (effect size = 13. 3 %, 95 % CI = 0. 1 % to 26. 5 %).