Table 4 Association between the individual operator and retained embryos
Item | Number of procedures | Date of entry | Number of REs | Number of procedures/year | RE rate (%) | P-value |
|---|---|---|---|---|---|---|
Operator ID | < 0.001 | |||||
01 | 4330 | 3/2016 | 41 | 881 | 0.95 | |
02 | 9266 | 12/2016 | 11 | 2224 | 0.12 | |
03 | 8627 | 4/2017 | 9 | 2251 | 0.10 | |
04 | 2328 | 6/2017 | 6 | 635 | 0.26 | |
05 | 1370 | 6/2018 | 4 | 514 | 0.29 | |
06 | 1075 | 10/2018 | 13 | 461 | 1.21 | |
07 | 1087 | 12/2018 | 4 | 502 | 0.37 | |
08 | 1077 | 4/2019 | 7 | 587 | 0.65 | |
Total | 29,160 | 95 | 0.49 |