Resumen

FERNANDEZ MILIAN, Rodolfo; SARMIENTO BROOKS, Gil Vicente; FERNANDEZ MACHIN, Luis  y  CORDOVA MEDINA, Carmen. Gestantes con antígeno de superficie positivo: resultado de su pesquisaje en 5 837 casos. Rev Cubana Hig Epidemiol [online]. 1999, vol.37, n.2, pp. 61-65. ISSN 1561-3003.

An observational and analytical case-control study was conducted among 5 837 women that were screened in the municipalities of Guanabacoa and Regla from June 1, 1990, to June 1, 1994. 20 cases with positive surface antigens for heapatits B that constituted the study group were detected, accounting for a prevalence of 0.3 %. The control group was formed by a stratified sampling of 4 polyclinics of both municipalities. 120 women who underwent an ELISA and had negative results were grouped. The relative risk and its confidence interval were used as an epidemiological instrument. In the study group the following variables were statistically significant amog the identifiable risk factors: sexually transmitted diseases, promiscuity, previous surgical procedures, bad economic situation, celibacy, university level, hemotherapy history, urosepsis checking, having a preterm newborn with a birth weight lowere than 2 500 g, and report of children with these characteristics in prior pregnancies.

Palabras clave : PREGNANCY TRIMESTER, SECOND; RISK FACTORS.

        · resumen en Español     · texto en Español     · Español ( pdf )