Table 4 Parameters and clinical outcomes for different C. trachomatis copy numbers

No. of couples

30

177

145

178

139

80

12

Male age

34.50 ± 5.32

33.70 ± 4.73

33.59 ± 4.29

32.87 ± 4.28

33.59 ± 5.02

33.01 ± 4.12

31.83 ± 4.65

Female age

31.57 ± 3.95

30.92 ± 4.17

31.44 ± 3.87

30.22 ± 4.11

30.95 ± 3.89

30.88 ± 3.58

30.42 ± 4.74

Duration of infertility

3.07 ± 2.34

4.39 ± 3.05

4.04 ± 2.76

3.74 ± 2.72

4.12 ± 3.20

4.04 ± 2.54

2.50 ± 1.17

Oocyte retrieve

14.67 ± 6.00

15.28 ± 6.48

14.02 ± 6.10

15.05 ± 6.57

14.47 ± 6.18

14.71 ± 6.36

13.92 ± 5.65

MII rate

90.0 (396/440)

88.2 (2387/2705)

89.6 (1823/2033)

88.2 (2365/2679)

90.2 (1815/2012)

88.0 (1036/1177)

80.8 (135/167)

Fertilized rate

76.1 (335/440)

76.0 (2056/2705)

78.1 (1589/2033)

75.6 (2026/2679)

78.9 (1589/2012)

73.2 (862/1177)

76.0 (127/167)

Cleaved rate

97.9 (328/335)

96.6 (1987/2056)

96.9 (1540/1589)

95.9 (1943/2026)

95.5 (1519/1589)

95.4 (823/862)

98.4 (125/127)

Transfer cycles

20

156

125

145

123

63

11

Transferred embryos

2.10 ± 0.45

2.64 ± 0.51

2.30 ± 0.63

2.22 ± 0.60

2.20 ± 0.58

2.29 ± 0.61

2.36 ± 0.51

Embryo implantation rate

33.3 (14/42)

32.0 (128/400)

31.5 (91/288)

32.6 (105/322)

33.7 (91/270)

31.9 (46/144)

57.6 (15/26)

Clinical pregnancy rate

45.0 (9/20)

55.1 (86/156)

54.4 (68/125)

51.0 (74/145)

52.0 (64/123)

47.6 (30/63)

81.8 (9/11)

Miscarriage rate

11.1 (1/9)

10.4 (9/86)

14.7 (10/68)

10.8 (8/74)

15.6 (10/64)

15.2 (7/46)

0.0 (0/9)

Multiple rates

55.5 (5/9)

48.8 (42/86)

33.8 (23/68)

41.8 (31/74)

42.1 (27/64)

34.7 (16/46)

55.5 (5/9)

Take baby home rate

40.0 (8/20)

49.3 (77/156)

46.4 (58/125)

45.5 (66/145)

43.9 (54/123)

36.5 (23/63)

81.8 (9/11)