IgG, IgM and IgA umbilical blood concentrations in normal singleton vaginal deliveries with stinking amniotic fluid or intrapartal maternal febrility > or = 38 degrees C or duration of delivery > 12 hours.

Total of 321 preterm/term newborns delivered in normal singleton vaginal deliveries was studied. Babies were divided into two groups. The first one includes 62 newborns with single, isolated clinical sign: stinking amniotic fluid or intrapartal maternal febrility > or = 38 degrees C or duration of delivery > 12 hours. The second one (control group) contained 259 newborns with no such a sign. In both groups the umbilical cord blood IgG, IgM and IgA concentration (g/L) were quantified by a radial immunodiffusion method. The obtained values were classified into the groups according to 500-grams-birth-weight-ranges. The differences of the mean IgG, IgM and IgA concentrations between the each 500-grams-birth-weight-range subgroup separately in both control and experimental group so as between the same subgroup of the control and experimental group were tested by the means of the Student's t-test. Obtained results did not express the significant differences in the mean IgG, IgM and IgA umbilical cord blood concentrations between the experimental and control group of the newborns.