Table 1.

Reported pregnancy outcomes

Outcome numerator	Denominator	Number (%) of clinics reporting item
Biochemical pregnancy		10 (19% of clinics)
	Unspecified denominator	4 (8)
	Per cycle started	4 (8)
	Per egg recovery	2 (4)
	Per frozen cycle	1 (2)
	Per insemination (IUI)	2 (4)
	Per transfer procedure	6 (11)
Clinical pregnancy		43 (81% of clinics)
	Unspecified denominator	14 (26)
	Per day 5 transfer	1 (2)
	Per cycle started	19 (36)
	Per egg recovery	7 (13)
	Per embryo transferred	2 (4)
	Per frozen cycle started	4 (8)
	Per insemination (IUI)	4 (8)
	Per transfer procedure	29 (55)
	Per cycle (ambiguous)	3 (6)
	Per first cycle (ambiguous)	1 (2)
	Per treatment (ambiguous)	1 (2)
	Unspecified denominator (cumulative)	1 (2)
	Per course of inseminations (cumulative, IUI)	1 (2)
	Per egg collection (cumulative)	1 (2)
	Per three cycles (cumulative)	1 (2)
Pregnancy (unspecified)		11 (21% of clinics)
	Per patient (cumulative)	1 (2)
	Per three cycles (cumulative)	1 (2)
	Unspecified denominator	8 (15)
	Per day 5 transfer	1 (2)
	Per cycle started	3 (6)
	Per frozen cycle started	1 (2)
	Per insemination (IUI)	1 (2)
	Per transfer procedure	2 (4)
	Per cycle (ambiguous)	2 (4)
Singleton pregnancy		1 (2)
	Unspecified denominator	1 (2)
Continuing pregnancy		1 (2)
	Per cycle started	1 (2)
	Per frozen cycle started	1 (2)

Number (%) of clinics reporting each outcome.