Table 4.

The categories used to analyse the articles, corresponding labels and names

Category	Label	Name	Description
Department	D_1	OR	OR department
	D_2	ER	ER department
	D_3	Outpatient clinic	Outpatient clinic department
	D_4	Patient clinic	Patient clinic department
	D_5	Hospital	Hospital in general
Topic	T_1	Optimize role of surgeon
	T_2	Reduce delays
	T_3	Optimize patient flow
	T_4	Reduce costs
	T_5	Optimize management	Organisational management, risk management etc
	T_6	Optimize teamwork
	T_7	Reduce non operative time
	T_8	Optimize anaesthesia procedure	Can be optimization of both medication and procedure
	T_9	Define OR efficiency
	T_10	Optimize scheduling	Scheduling of operations, medical staff etc
	T_11	Optimize overall equipment effectiveness	Use equipment in a more effective way
	T_12	Optimize workflow tracking systems	Such as an engineering perspective or VSM (Value Stream Mapping)
	T_13	Optimize overall productive capacity of a department
	T_14	Optimize department design	Physical rearrangement or redesign of a department
	T_15	Reduce workload
Method	M_1	Literature review
	M_2	Analysing data
	M_3	Experiment with patients
	M_4	Experiment with surgeons
	M_5	LEAN	Management strategy to strip a company or organization from unnecessary steps in their processes
	M_6	Experiment with department team	Specific team of a certain department
	M_7	Experiment with hospital staff	Includes medical staff (i.e., doctor, nurse) and other staff (i.e., managers, administration)
	M_8	Computational	Such as simulations with artificial intelligence
	M_9	OSH integrated risk management (Occupational Safety and Health)
	M_10	System engineering