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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