Table 1.

Survey and focus group participant characteristics.

Characteristics	Delphi (n = 36) *	Focus Group (n = 6)
Designation (n)	CA = 20 CO = 13 Oreg = 3 Ores = 0	CA = 2 CO = 2 Oreg = 2 Ores = 0
Length of time at this level (years; mean (SD))	CA = 12.90 (7.44) CO = 20.23 (13.05) Oreg = 6.33 (1.15) Ores = N/A	CA = 12 (0.00) CO = 11 (9.90) Oreg = 4 (4.24) Ores = N/A
Caseload (number of TKAs per year; mean (SD))	CA = 26.6 (31.70) CO = 45.42 (33.94) ** Oreg = 72.50 (37.33) *** Ores = N/A	CA = 30 (0.00) CO = 70 (28.28) **** Oreg = 112.50 (53.03) ***** Ores = N/A

CA = consultant anaesthetist; CO = consultant orthopaedic surgeon; Oreg = orthopaedic registrar; Ores = orthopaedic resident; * 39 commenced the survey, but only 36 responded to any of the questions; ** there was one missing value, so the calculation was conducted on the non-missing values; *** one participant gave a range of 75–100 so a value of 87.5 was used in the calculation; **** one participant gave a range of 80–100 so a value of 90 was used in the calculation; ***** one participant gave a range of 50–100 so a value of 75 was used in the calculation.