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Table 1 Surgeon responses and respondent demographics for Study 1 and Study 2

From: Comparing Australian orthopaedic surgeons’ reported use of thromboprophylaxis following arthroplasty in 2012 and 2017

  Study 1
2012
Study 2
2017
Surgeons invited 478 820
Returned responses 257 596
Responses/Surgeons excluded due to … 36 165
 ...surgeon death / retirement / moving overseas 25 13
 ...invite being returned unopened 83
 ...surgeon not being a hip or knee surgeon 11 69
Surveys included (%) N 221 (50.0) 442 431 (65.8) 655
Male gender (%) 217 (98.6) 220 416 (97.4) 427
Years practising [mean (SD)] n 17.8 (9.0) 213 17.6 (9.7) 424
Sector of practice (%) **
 Private practice predominantly 155 (70.5) 247 (59.5)
 Public practice predominantly 10 (4.5) 50 (12.0)
 Both sectors equally 55 (25.0) 118 (28.4)
Relevant scope of practice (%)
 Hip only 3 (1.4) 3 (0.7)
 Knee only 22 (10.0) 46 (10.7)
 Both 194 (87.8) 381 (88.4)
 Not specified 2 (0.9) 1 (0.2)
Annual arthroplasty load [mean (SD)] n * 175.2 (102.9) 215 157.5 (108.6) 423
 Hip arthroplasties per year 76.3 (52.0) 193 68.5 (57.8) 376
 Knee arthroplasties per year 108.3 (67.6) 212 97.3 (71.2) 420
ASA membership (%) * 48 / 209 (23.0) 62 / 425 (14.6)
  1. * p < 0.05; ** p < 0.005; ASA = Arthroplasty Society of Australia; ASA members specialise in arthroplasty surgery and at least 80% of their surgeries must be joint replacements. SD = standard deviation
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