Patient characteristic | Learning phase (n = 26) | Proficiency phase (n = 27) | p-value (Learning vs proficiency) |
---|---|---|---|
Age (years) | 70.0 ± 10.5 | 70.6 ± 6.4 | NS (0.80) |
BMI (kg/m2) | 30.8 ± 5.6 | 32.8 ± 6.0 | NS (0.22) |
Male gender | 10 (39%) | 9 (33%) | NS (0.92) |
Preoperative Hb (g/L) | 134.6 ± 11.7 | 139.6 ± 13.1 | NS (0.15) |
Postoperative Hb change (g/L) | 22.3 ± 8.1 | 26.9 ± 10.1 | NS (0.07) |
Pre-operative HKA (° ± SD) | -4.8 ± 7.8 | -8.6 ± 6.4 | NS (0.06) |
Operative (skin to skin) time (mins) | 114.0 ± 17.3 | 110.8 ± 19.6 | NS (0.53) |