Table 2 Association between gestational age and identified risk factors according to the time of injury among studied cases

Antenatal risk factors

n = 210

n = 79

n = 131

0.01*

 CNS malformation

56

5(8.9 )

51(91.1)

0.001*

 Maternal hemorrhage

27

17(62.9)

10(37.1)

0.003*

 Maternal fever at delivery

13

0(0.0)

13(100)

0.003*

 Congenital infection

22

3(13.6)

19(86.4)

0.014*

 Preeclampsia

13

3(23.1)

10(76.9)

0.26

 Maternal diabetes

37

21(56.8)

16(43.2)

0.008*

 Maternal thyroid

7

5(71.5)

2(28.5)

0.06

 Teratogenic

10

3(30.0)

7(70.0)

0.61

 Prolonged rupture of membrane

25

22(88)

3(12)

< 0.001*

Natal/post-natal risk factor

n = 307

n = 147

n = 160

< 0.0001*

 HIE

87

2(2.3)

85(97.7)

< 0.001*

 Neonatal sepsis

50

40(76.9)

12(23.1)

< 0.001*

 Hyperbilirubinemia

39

17(43.6)

22(56.4)

0.566

 Emergency CS

58

34(58.6)

24(41.4)

0.07

 Intracranial hemorrhage

43

33(76.7)

10 (23.3)

0.0004*

 Meconium aspiration

19

19(100.0)

0(0.0)

< 0.001*

 Cord prolapse

9

2(22.2)

7(77.8)

0.117

Post-neonatal risk factor

n = 171

n=47

n = 124

0.35

 CNS infection

59

5(8.5)

54 (91.5)

< 0.001*

 Accidental injury

6

4(66.7)

2(33.3)

0.049*

 Cerebrovascular accidents

49

2(4.1)

47(95.9)

< 0.001*

 Sepsis

41

27(65.9)

14(34.1)

< 0.001*

 Intracranial hemorrhage

16

9(56.3)

7(43.7)

0.006*

Unidentified

n = 312

32(10.3)

280(89.7)

< 0.001*