“…The sample size of the included studies ranged from 20 to 14,713 adults who underwent various medical procedures under general and local or regional anesthesia in an outpatient setting. General anesthesia was compared to local anesthesia in 15 studies, 10 , 13 , 14 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 27 , 30 , 33 to spinal anesthesia in 7 studies, 12 , 15 , 25 , 31 , 32 , 34 , 35 and to both in 5 studies. 26 , 28 , 29 , 36 , 37 Medical procedures were different and included laryngoplasty, knee arthroscopy, biopsy, hernia repair, hysteroscopy, and others.…”