Table 1 Maternal CMV serostatus according to socio-demographic characteristics:

 18–30

185 (38)

83 (45)

102 (55)

1.00

0.95

(0.63–1.58)

0.98

(0.51–1.76)

0.87

 31–35

186 (38)

88 (47)

98 (53)

1.10

(0.69–1.74)

0.69

0.69

(0.39–1.23)

0.21

  ≥ 36

120 (24)

54 (45)

66 (55)

1

1

 Yes

272 (55)

182 (67)

90 (33)

8.28

6.88

(5.45–12.58)

<0.0001

(4.33–10.94)

<0.0001

 No

219 (45)

43 (20)

176 (80)

1

1

 Up to university

188 (38)

76 (40)

112 (60)

1

1

 University

303 (62)

149 (49)

154 (51)

1.43

0.06

1.01

0.96

(0.99–2.06)

(0.60–1.70)

 Low

101 (21)

19 (19)

82 (81)

1

1

 Middle class

228 (48)

105 (46)

123 (54)

3.68

<0.0001

3.05

0.002

(2.10–6.47)

(1.54–6.04)

 High

150 (31)

98 (65)

52 (35)

8.13

<0.0001

4.68

0.0002

(4.46–14.85)

(2.09–10.48)

 0

229 (47)

113 (49)

116 (51)

2.08

0.01

1.59

0.30

(1.25–3.47)

(0.66–3.86)

 1

171 (35)

83 (49)

88 (51)

2.02

0.005

1.54

0.19

(1.18–3.44)

(0.81–2.93)

  ≥ 2

91 (18)

29 (32)

62 (68)

1

1

 Yes

218 (44)

93 (43)

125 (57)

1

1

 No

273 (56)

132 (48)

141 (52)

1.26

0.21

1.14

0.74

(0.88–1.80)

(0.51–2.54)

 None

112 (23)

35 (31)

77 (69)

1

1

 DCW

25 (5)

11 (44)

14 (56)

1.73

1.81

(0.71–4.19)

0.23

(0.60–5.50)

0.29

 HCW

53 (11)

32 (60)

21 (40)

3.35

1.19

(1.70–6.62)

0.0005

(0.47–3.03)

0.71

 Others

301 (61)

147 (49)

154 (51)

2.10

0.92

(1.33–3.32)

0.002

(0.51–1.66)

0.78