Table 1 Demographic parameters and fertilization rates in the two groups

Cycles (n)

296

312

No. of LGCE

948

808

Female age (yrs)

32.2 ± 5.0

32.8 ± 5.4

0.121

Male age (yrs)

34.0 ± 5.6

34.4 ± 5.8

0.324

Infertility duration (yrs)

3.2 ± 2.6

3.1 ± 2.3

0.755

No. of treatment cycles

1.8 ± 1.4

1.8 ± 1.4

0.744

Basal FSH (IU/L)

6.2 ± 3.3

6.5 ± 5.4

0.425

AMH (IU/L)

3.4 ± 2.8

3.6 ± 3.0

0.388

BMI (kg/m²)

21.6 ± 3.0

22.0 ± 3.1

0.122

Primary /Secondary infertility

139/157

128/184

0.141

Infertility factors

0.126

Female factor

91

106

Male factor

52

34

Both factors

137

152

Idiopathic factor

16

20

COS procedure

0.107

Long protocol

45

48

Antagonist protocol

174

167

ministimulation scheme

60

62

Others

17

35

No. of oocyte

9.7 ± 6.0

8.1 ± 5.2

 < 0.001^a

Fertilization protocol (IVF/ICSI)

188/108

204/108

0.63

Fertilization rate (%)

IVF

63.7(1174/1842)

67.3(1097/1630)

0.563

ICSI

72.0(511/710)

70.4(463/658)

0.512