Table 1.

Data collected across three sites

	Hours of observation	Interviewees (n)
Site 1	58 hours 35 min (social science) 65 hours (human factors)	11 midwives and 3 doctors: 14 total
Site 2	70 hours 15 min (social science) 39 hours 30 min (human factors)	3 midwives and 2 doctors: 5 total
Site 3	42 hours 30 min (social science) 49 hours 30 min (human factors)	2 midwives and 2 doctors: 4 total
Total	171 hours 20 min (social science) 154 hours (human factors) 325 hours 20 min	16 midwives 7 doctors 23 total