Table 1.

Patient and cycle characteristics

	ITT/PP	CUH	AUH	Combined	p-value*
No. of patients recruited	ITT	32	27	59
	PP	29	27	56
Patient age/years	ITT	32.7 ± 3.3	31.6 ± 3.2	32.2 ± 3.3	0.20
	PP	32.1 ± 2.9	31.6 ± 3.2	31.9 ± 3.0	0.53
No. of oocytes retrieved	ITT	n = 343	n = 382	n = 725
	PP	n = 314	n = 382	n = 696
No. of inseminated oocytes (IVF)	ITT	n = 134	n = 126	n = 260	0.74
	PP	n = 105	n = 126	n = 231
No. of micro injected oocytes (ICSI)	ITT	n = 209	n = 207	n = 416	0.71
	PP	n = 162	n = 207	n = 369
No. of oocytes retrieved/patient	ITT	10.7 ± 2.5	14.1 ± 4.7	12.3 ± 4.0	<0.001
	PP	10.8 ± 2.5	14.1 ± 4.7	12.4 ± 4.0	0.002
Number of clinical pregnancies	ITT	12 (37.5 %)	8 (29.6 %)	20/59(33.9 %)	0.59
	PP	11 (37.9 %)	8 (29.6 %)	19/56 (33.9 %)	0.58

Continuous variables are expressed as means ± SD, differences are tested with Students t-test. Categorical variables are expressed as numbers (%), differences are tested with χ² test

AUH Aarhus University Hospital; CUH Copenhagen University Hospital, Rigshospitalet

ITT Assessed by intention-to-treat; PP Assessed per protocol

*AUH compared with CUH