Table 1 Anthropometric characteristics of the study group*.

From: Trainee Surgeons Affect Operative Time but not Outcome in Minimally Invasive Total Hip Arthroplasty

N = 1008

Trainee

Senior

Number of THAs

N = 240

N = 768

Age (years)

65.9 ± 10.1

63.8 ± 10.8

Gender (men/women)

121/119

365/403

ASA-Class 1

27 (11.3%)

142 (18.5%)

ASA-Class 2

125 (52.1%)

411 (53.5%)

ASA-Class 3

85 (35.4%)

212 (27.6%)

ASA-Class 4

3 (1.3%)

3 (0.4%)

Operative time (min)

78.1 ± 25.4

69.3 ± 23.8

Length of hospital stay (d)

9.5 ± 1.8

9.4 ± 1.6

  1. *For categorical data values are given as relative and absolute frequencies, for quantitative data values are given as mean (standard deviation), THA = total hip arthroplasty, ASA = American Society of Anaesthesiologists.
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