CMV DNA prevalence in placenta tissue and sociodemographic
risk factors
Placenta biopsies from 496 women were analyzed and divided into maternal
and fetal interfaces. The molecular prevalence of CMV in maternal
interface of placentas was 5.2% and in fetal interface was 5.4%.
Parturients had an average of 25 years (SD +/- 6 years). Among these,
42.6% were in the first pregnancy and 19% had previous abortion.
Table I.
Some sociodemographic factors have shown a tendency in bivariate
analysis: women who studied less than 9 years and nonwhite skin color
were factors associated with the molecular presence of the virus in
placentas. The income factor (shown as minimum wage) was significantly
associated with the CMV molecular prevalence in placentas. Obstetrical
and gynecology variables were not associated with the outcome (data not
shown).
Table II shows Poisson multivariate analysis of the previously mentioned
factors. Again, the prevalence of CMV in maternal interface of placentas
was associated with an income lower than 1 minimum wage (p = 0.03).
Table II.