Table 3.

Categorisation, and examples, of open-ended questions regarding additional barriers to the use of the checklist

Category	Total number of comments assigned to category	Example
Method of implementation	13	• Too much paper and signatures. Lack of use of x-rays and pathology.
Lack of teamwork	9	• Need for complete staff involvement. Staff frequently do not pay attention or demand silence and attention of all staff.
Timing	6	• Checklist frequently carried out when anaesthetists are busy with airway etc.
Lack of education	5	• Lack of education regarding benefits.
Lack of senior support	4	• Intimidation by senior staff.
Lack of redundancy	3	• Lack of repeating checklist after patient is positioned.
Too much redundancy	2	• Too much repetition.