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. 2017 Apr-Jun;15(2):200–205. doi: 10.1590/S1679-45082017GS3902

Table 2. Mean, 80th percentile and variation between them, in the stages anesthesia, operative time and operating room time (in minutes).

Specialties Duration of anesthesia Operative time Operating room time



Mean P80 Variation (%) Mean P80 Variation (%) Mean P80 Variation (%)
Orthopedics 207.5 282.0 36 152.0 210.0 38 228.2 300.0 31
General and Gastrointestinal Surgery 200.0 282.0 41 151.0 222.0 47 218.0 300.0 38
Gynecology and Mastology 110.0 180.0 64 79.3 132.0 66 128.5 192.0 49
Urology 135.4 192.0 42 94.0 144.0 53 154.0 225.0 46
Plastic Surgery 205.7 294.0 43 157.7 237.0 50 225.7 316.2 40
Otolaryngology 176.5 255.8 45 129.2 193.2 50 194.9 280.2 44
Ophthalmology 153.5 195.0 27 111.4 162.0 45 172.0 225.0 31
Neurosurgery 199.3 279.8 40 135.1 189.0 40 218.5 294.0 35
Vascular Surgery 193.5 278.4 44 144.8 222.0 53 215.4 307.2 43
Head and Neck 257.6 379.8 47 202.5 312.6 54 279.2 417.0 49
Thoracic Surgery 163.4 240.0 47 105.0 168.0 60 183.6 264.0 44
Cardiovascular Surgery 268.0 409.2 53 189.3 291.0 54 283.3 414.0 46
Overall mean 178.1 252.0 41 130.5 195.0 49 197.3 285.0 44

P80: 80th percentile.