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. 2019 Sep 24;11(9):e5745. doi: 10.7759/cureus.5745

Table 2. Practice Characteristics by Practice Type.

  Overall (n=962) Academic Practice (n=485) Private Practice (n=212) Private Practice and an Academic Affiliation (n=233) Locum Tenens/Other (n=32)
Years in practice, median (IQR)   10 (5 - 20) 8 (4 - 19) 11 (5 - 21) 12.5 (5.75 - 19.25)
Sex, n (%)          
     Female 446 (46.4) 255 (52.6) 95 (44.8) 80 (34.3) 16 (50.0)
     Male 516 (53.6) 230 (47.4) 117 (55.2) 153 (65.6) 16 (50.0)
Clinical work hours per week, mean (SD) 46.9 (12.4) 44.9 (12.6) 48.5 (11.6) 50.3 (10.8) 42.4 (17.3)
Clinical work hours per week by sex, mean (SD)        
     Female 45.0 (12.0) 44.0 (12.3) 46.2 (11.9) 47.4 (10.9) 43.4 (10.2)
     Male 48.5 (12.5) 45.8 (12.9) 50.4 (11.0) 51.8 (10.4) 41.4 (22.0)
Hospital setting (at least 50% of time), n (%)^        
     General hospital WITHOUT dedicated children’s unit  99 (10.3) 27 (5.6) 46 (21.7) 19 (8.2) 7 (21.9)
     General hospital WITH dedicated children’s unit 343 (35.7) 144 (29.7) 98 (46.2) 91 (39.1) 10 (31.3)
     Freestanding children’s hospital 470 (48.9) 312 (64.3) 36 (17.0) 110 (47.2) 12 (37.5)
     Ambulatory surgery center 52 (5.4) 9 (1.9) 32 (15.1) 9 (3.9) 2 (6.3)
     Other (VA, office-based, dental setting) 9 (0.9) 2 (0.4) 4 (1.9) 0 (0) 3 (9.4)
Respondents who supervise, n (%)          
     Residents 648 (67.4) 469 (96.7) 19 (9.0) 152 (65.2) 8 (25.0)
     Fellows 455 (47.3) 392 (80.8) 5 (2.4) 57 (24.5) 1 (3.1)
     Certified registered nurse anesthetists 735 (76.4) 420 (86.6) 125 (59.0) 174 (74.7) 16 (50.0)
     Certified anesthesiology assistants 160 (16.6) 106 (21.9) 18 (8.5) 31 (13.3) 5 (15.6)
     Non-anesthesia trainees 434 (45.1) 284 (58.6) 45 (21.2) 100 (42.9) 5 (15.6)
Mean percentage of time by practice setting        
     Operating room 92.7 90.7 95.5 95.1 87.5
     Acute pain service 3.3 3.9 2.5 2.8 2
     Chronic pain service  1.2 2.2 0.2 0.4 0
     Pediatric intensive care 1.6 2.3 0.6 1 0.8
     Other 1.2 0.9 1.1 0.7 9.7
Percentage of cases by age          
     Infants/children (aged 0–2 years) 21.6 25.3 14.6 20.7 20.2
     Children (aged three years to five years) 24.7 27.4 18.6 24.6 25.4
     Older children (aged six years to 17 years)  24.8 28.2 16.9 25.4 23.1
     Adults (aged 18+ years) 29 19.1 50 29.3 31.2
Number of anesthesiologists who cared for patients undergoing index cases within the past 12 months, n (%)
     Airway 814 (84.6) 427 (88.0) 162 (76.4) 205 (88.0) 20 (62.5)
     Cardiac with CPB 192 (20.0) 11 (2.3) 25 (11.8) 54 (23.2) 1 (3.1)
     Cardiac without CPB 263 (27.3) 151 (31.1) 37 (17.5) 72 (30.9) 3 (9.4)
     Craniofacial 596 (62.0) 312 (64.3) 105 (49.5) 163 (70.0) 16 (50.0)
     Intra-abdominal/intracavitary 840 (87.3) 438 (90.3) 171 (80.7) 210 (90.1) 21 (65.6)
     Intracranial neurosurgery 651 (67.7) 362 (74.6) 99 (46.7) 175 (75.1) 15 (46.9)
     Intrathoracic non-cardiac 679 (70.6) 373 (76.9) 119 (56.1) 172 (73.8) 15 (46.9)
     Major orthopedic 732 (76.1) 386 (79.6) 134 (63.2) 190 (81.6) 22 (68.8)
     Neonatal emergency 753 (78.3) 400 (82.5) 142 (67.0) 193 (82.8) 18 (56.3)
     Solid organ transplant 300 (31.2) 222 (45.8) 10 (4.7) 63 (27.0) 5 (15.6)
     ASA physical status greater than/equal to four 748 (77.8) 421 (86.8) 128 (60.4) 181 (77.7) 18 (56.3)
*Due to rounding, percentages may not sum to 100%        
^sum of percentages >100 because respondents who indicated 50% time were counted twice