Table 2

Physician characteristics by patient sex

VariableFemale patients
(n=18 688)
Male patients
(n=61 174)
Standardised differenceP value
Surgeon age, mean±SD, years50.2±8.849.9±8.80.03<0.001
Surgeon experience, years, n (%)
 <101186 (6.3)4153 (6.8)0.02<0.001
 11–204791 (25.6)16 336 (26.7)0.02
 21–307144 (38.2)23 313 (38.1)0
 >305567 (29.8)17 372 (28.4)0.03
Surgeon volume, median (IQR).2942 (1209–4366)2842 (1126–4322)0.04<0.001
Anaesthesiologist age, mean±SD, years48.3±9.048.3±9.000.84
Anaesthesiologist experience, years, n (%)
 0–101626 (8.7)5563 (9.1)0.010.04
 11–206737 (36.0)21 877 (35.8)0.01
 21–306005 (32.1)19 171 (31.3)0.02
 >304320 (23.1)14 563 (23.8)0.02
Anaesthesiologist volume, median (IQR)764 (368–1311)758 (366–1318)0.010.54
  • Total case volumes reflect the number of cases performed since 1991 until the date of the index procedure.