Table 3. Mean scores for individual items of the survey^a.

Variable	With headsets Mean ± SE	Without headsets Mean ± SE	p-value
Heard clearly during case	9.0±0.2	7.2±0.2	< .001
Needed to repeat	7.6±0.2	5.9±0.2	< .001
Team communication	8.6±0.1	7.5±0.1	< .001
Focus	8.5±0.1	8.0±0.1	< .001
Steps took longer	7.8±0.2	6.3±0.2	< .001
Feel safe	8.9±0.1	8.3±0.1	< .001
Successful in task	8.8±0.1	8.5±0.1	< .001
High team morale	8.9±0.1	8.4±0.1	< .001
Participation	8.9±0.1	8.6±0.1	< .001
Efficient teamwork	9.0±0.1	8.4±0.1	< .001
Felt exhausted	7.0±0.2	6.3±0.2	< .001
Felt stressed/irritated	7.5±0.2	7.0±0.2	< .001
Hard work for task	5.8±0.2	5.3±0.2	< .001
Noise bothered/distracted	7.5±0.2	6.8 ± 0.2	< .001

SE, standard error

^aFor the full version of each statement please refer to S1 Table.