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[Seroprevalence of Toxoplasma gondii in pregnant women].

OBJECTIVES
To find the seroprevalence of Toxoplasma gondii in pregnant women and identify associated factors. To assess the relevance of systematic screening of pregnant women.


DESIGN
A descriptive crossover study of prevalence.


SETTING
Primary Care in the "Puerto de la Torre" district of Málaga.


PATIENTS
Pregnant women who gave birth in 1993 and were included in the Pregnancy Control Programme. 191 cases were studied.


INTERVENTIONS
A qualitative detection of specific IgG by means of indirect EIA. Every woman with antibodies was considered seropositive, irrespective of the title. Clinical records were the source of data.


RESULTS
Average age was 27.13. Seroprevalence (IgG+) was 25.7%. Crude analysis of association between IgG+y was: previous abortions, OR 5.28, C.I. 95% (2.24-12.30), P = 0.00009; domestic animals, OR 1.76, CI (0.74-4.13), P = 0.08; low economic status, OR 1.9, CI (1.04-3.4), P = 0.057; had given birth before, OR 1.5, CI (0.81-2.74), P = 0.23. The multivariant analysis for IgG+dependent variable was: for previous abortions, OR 3.81, P = 0.005; low status OR 2.13, P = 0.04; domestic animals OR 1.71, P = 0.13, independent of age. There were no interactions.


CONCLUSIONS
There was low seroprevalence in comparison with the national average. Low economic status and previous abortions suppose the highest risks of IgG+. Screening is recommended.