Table 5 cORs, aORs and 95% CIs of neonatal outcomes among different infertility etiologies compared to spontaneous pregnancies in singleton pregnancies

Preterm birth

0.18

1.95

1.26

3.01

0.27

1.33

0.93

1.91

0.27

1.97

0.89

4.34

0.21

1.52

0.95

2.44

0.20

2.69

1.41

5.15

34≤PTD<37 wk

0.19

1.73

1.03

2.89

0.27

1.42

0.95

2.11

0.27

1.83

0.73

4.61

0.22

1.61

0.95

2.73

0.20

2.88

1.42

5.84

28≤PTD<34 wk

0.21

2.49

1.17

5.29

0.38

1.06

0.48

2.31

0.34

2.24

0.53

9.38

0.24

1.52

0.60

3.83

0.26

1.88

0.45

7.84

Birthweight <2500 g

0.12

1.90

1.13

3.20

0.14

1.12

0.71

1.78

0.14

1.59

0.57

4.42

0.12

1.42

0.80

2.54

0.13

2.04

0.88

4.76

Birthweight <1500 g

0.18

3.31

1.34

9.60

0.28

1.09

0.33

3.59

0.29

NC

NC

NC

0.18

2.29

0.69

7.64

0.17

2.38

0.32

17.81

SGA

0.28

1.60

0.97

2.65

0.30

0.90

0.57

1.42

0.23

2.29

1.04

5.08

0.33

1.03

0.57

1.88

0.24

1.36

0.54

3.40

Macrosomia

0.99

1.53

1.03

2.27

0.95

1.60

1.21

2.13

0.80

2.00

1.02

3.95

1.58

0.97

0.60

1.55

1.65

0.86

0.37

2.00

1-Minute Apgar score≤7

0.37

1.84

0.72

4.73

0.94

0.77

0.28

2.15

0.50

NC

NC

NC

0.37

1.70

0.61

4.80

0.19

4.68

1.62

13.51

5-Minute Apgar score≤7

0.20

2.39

0.27

20.34

0.29

4.09

1.04

16.08

NC

NC

NC

NC

0.20

NC

NC

NC

0.18

NC

NC

NC

NICU admission

0.26

1.69

1.22

2.34

0.34

1.24

0.95

1.61

0.28

2.35

1.35

4.09

0.31

1.17

0.80

1.70

0.31

1.61

0.92

2.84