Table 1 Demographic characteristics of patients in the two groups

Number of cases

165

143

Age of the mother

26.9 ± 3.8

26.4 ± 3.6

0.23

 1

112

96

0.88

 2

42

39

 3+

11

8

Male/Female

101/64

96/47

0.280

Weight (kg)

2.7 ± 0.6

2.8 ± 0.5

0.384

Age (day)

4.9 ± 7.3

4.8 ± 7.5

0.712

 Ileum

122

105

0.919

 Transverse colon

43

38

 Countryside

108

95

0.857

 Urban area

57

48

 Undergraduate and higher

65

57

0.458

 High school-undergraduate

85

67

 High school and lower

15

19