Table 1 Results of OSATS quality on each variable and total score

Respect

2.8 ± 1.3

3.4 ± 1.2

2.8 ± 1.5

0.577

Time and motion

2.0 ± 1.0

2.3 ± 0.5

2.3 ± 1.3

0.779

Instrument

2.6 ± 1.1

2.4 ± 0.8

2.5 ± 1.2

0.945

Use of assistant

2.3 ± 1.1

2.7 ± 0.8

2.4 ± 1.3

0.709

Non-dominant hand

2.5 ± 0.8

3.0 ± 0.8

2.9 ± 1.4

0.656

Flow of operation

2.3 ± 1.1

2.7 ± 0.5

2.7 ± 1.3

0.642

Total

16.7 ± 6.0

18.5 ± 4.0

16.8 ± 7.6

0.774