Table 1 Spectrum of teamwork measurement in the system of surgery, including anaesthesia.

	Observational measures for teamwork skills training
Object of analysis	Professional individual	Intraprofessional team	Interprofessional team
Professionals	A, N or S	A‐A, N‐N or S‐S	S‐A, S‐N, A‐N or A‐N‐S
Teamwork assessment	ANTS (2003)	Gaba et al (1998 )	OTAS (2004)

This table cites tools that assess individuals and teams on teamwork in varying degrees of technical specificity. ANTS, Anaesthetist's Non‐Technical Skills Assessment; OTAS, Observational Teamwork Assessment in Surgery; A, anaesthetists; N, nurses; S, surgeons and their combinations. The hyphen (‐) denotes interaction within or between professional groups.