Optimistic bias: the more you do, the better you think it goes. Survey analysis of reverse shoulder arthroplasty

Figures & data

Table 1 Preoperative and postoperative pain assessment of surgeons and patients cohort

Descriptive	Mean	Standard Deviation	P-value
Preop pain
Resident	4,57	1,76
Staff	4,48	1,89
Chief	4	1,49	0,11
Number of Prostheses
<15	4,39	1,8
>15	4,44	1,8	0,959
Mean value sample	4,35	1,71
Patients Cohort	5,18	1,79	0,000
Postop pain
Resident	11,5	1,54
Staff	11,8	2
Chief	12,3	1,61	0,02
Number of Prostheses
<15	11,5	1,85
>15	12,7	1,66	0,000
Mean value sample	11,86	1,71
Patients Cohort	12,02	2,94	0,297

Table 2 Difference in pain improvement assessment (postop minus preop) between surgeons and patients cohort

Descriptive	Mean	Standard Deviation	P-value
Patients Cohort	6,84	3,35
Resident	6,90	1,93
Staff	7,35	2,58
Chief	8,28	1,87	0,03
Number of Prostheses
<15	7,15	2,32
>15	8,29	2,43	0,003