Table 2 Odds ratio for risk factors of Retinopathy of Prematurity (ROP).

>28 weeks >28 weeks

1

-

1

26–28 weeks

4.12

1.05–16.11

3.19

0.81–12.55

≤ 25 weeks

11.27

2.61–48.66

8.49

2.0–35.94

Caucasian

1

-

Other

0.22

0.03–2.0

African American

0.18

0.05–0.68

Boys

1

-

Girls

0.71

0.33–1.52

No

1

-

0.5 course

0.78

0.27–2.28

1 course

0.50

0.17–1.26

2 courses

0.52

0.14–1.91

≥ 3 courses

0.17

0.02–1.49

No

1

-

Yes

0.96

0.39–2.37

No

1

-

1

1 week

2.15

0.2–22.58

2.3

0.23–23.35

1 – 2 weeks

3.45

0.30–39.91

4.57

0.40–51.63

> 2 weeks

8.27

0.86–79.74

9.02

0.96–85.0

No

1

-

1

Yes

2.69

1.05–6.89

2.91

1.17–7.28

No

1

-

Yes

1.29

0.59–2.87