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Table 2 Rubella seroprevalence and titer in relation to maternal age and gestational age of newborns

From: Rubella immune status of neonates – a window towards seroprevalence among childbearing women

Maternal age

<20

20 - 30

>30

p

% seropositive (95 % CI)

78.3 (58.1–90.3)

89.3 (85.0–92.4)

93.6 (89.9–96.0)

0.0182a

Mean IgG titer (SD)

60 IU/mL (67)

75 IU/mL (65)

72 IU/mL (62)

--b

GA (weeks)

<32

>32

  

% seropositive (95 % CI)

90.1 (86.7–92.8)

90.1 (85.6–93.3)

--

Mean IgG titer (SD)

59.5 IU/mL (53)

78 IU/mL (66)

p < 0.0001

  1. achi-square test for trend
  2. bindicates no statistically significant difference