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.