Prevalence of anxiety symptoms and depression in the third gestational trimester.

Objective: To determine the prevalence of anxiety and gestational depression and to determine the risk factors associated to its development.

Method: Pregnant women during their third quarter of pregnancy were invited to participate to the study, and they signed an informed consent form. After that, they filled in a general assessment questionnaire in which socio-economical and obstetrical characteristics together with general health conditions and behaviors harmful for the pregnancy were evaluated. To determine the anxiety symptoms a STAI A-trait scale and a STAI-A-state scale were used and to measure the depression a CES-D scale was used. A data logistic regression was realized to determine significant associations. The significance level adopted was 0.05 for all statistical tests.

Results: The final sample was represented by 207 pregnant women and the prevalence of depression was the highest value (73.5%), followed by state anxiety (58.5%) and finally by trait anxiety (53.2%). Only trait anxiety was explained by the variables studied and it was associated to the realization of a treatment for chronic diseases (OR = 2.93; IC = 1.02-8.41; p = 0.045) and the usage of continuous prescription drugs (OR = 2.30; IC = 1.06-4.97; p = 0.034).

Conclusions: The prevalence of anxiety and depression among pregnant women were both high and only trait anxiety was explained by treatment for chronic diseases and the usage of continuous prescription drugs.