Table 2.

Intra-comparison of data between subgroups of Low (A) and high (C) baseline serum DHEAS groups. (2a) A2 vs. A1 and (2b) C2 vs. C1

Parameters	2a		2b
	Oral DHEAS supplementation subgroup A2 (n = 137)	No DHEAS supplementation lower control subgroup A1 (n = 128)	Metformin treatment subgroup C2 (n = 137)	No metformin treatment higher control subgroup C1 (n = 134)
Mean eggs retrieved	7.76 ± 3.0	4.83 ± 2.0a	22.62 ± 5.4	20.59 ± 5.6d
Fertilisation, %	79.83 ± 3.3	55.68 ± 3.14a	79.04 ± 2.9	53.04 ± 2.9a
Cleavage, %	78.5 ± 2.86	53.39 ± 3.16a	76.24 ± 4.01	52.09 ± 4.9a
Blastocyst formation, %	42.61 ± 5.14	22.26 ± 3.09a	40.58 ± 4.3	20.17 ± 3.04a
Live birth (n), %	(51) 37.23 ± 4.8	(21) 16.41 ± 3.7b	(48) 35.04 ± 4.9	(20) 14.93 ± 3.5b
Early miscarriage, %	3.65 ± 0.19	10.16 ± 0.3c	3.65 ± 0.19	9.7 ± 0.3e

Values are mean ± SD (standard deviation) p < 0.05 = significant

^ap < 0.0001; ^bp = 0.0002; ^cp = 0.035; ^dp = 0.0025; ^ep = 0.04