Table 2.

Ethnographic data collected in six maternity units

Ethnographic research phase	Phase 1	Phase 2
Aim	Produce a comprehensive account of the mechanisms underlying the safety outcomes seen in the index maternity unit.	Evaluate the extent to which the mechanisms underlying safety at the index site were also visible in a sample of maternity units exposed to PROMPT and to refine and develop a deeper understanding of these mechanisms.
Site	Index maternity unit (site 1)	Site 2	Site 3	Site 4	Site 5	Site 6
Observations	143 hours	40 hours	64 hours	52 hours	34 hours	68 hours
Interviews with staff members	12	4	6	4	3	4
Data collection timeline	December 2014, March 2015, July–August 2017	September 2017	September–October 2017	October–November 2017	January 2018	May–June 2018
Total	401 hours of ethnographic observations 33 semistructured interviews

PROMPT, PRactical Obstetric Multi-Professional Training.