raima . The lowest rate of infant death by congenital abnormality registered was 0.5/1,000 live births in the State of Paraiba and the highest 2.9/1,000 live births in Mato Grosso do Sul . The States of Mato Grosso do Sul (15.4 / 1,000 live births ). Sergipe (14.0 /1,000 live births ), and Piaui (12.9 /1,000 live births ) showed the highest fetal death rates . Table 3 presents the results of the crude and adjusted linear regression analyses between pesticide use and the outcomes investigated . A statistically significant positive correlation between pesticide use and low birth weight was observed in the bivariate analysis (beta = 0.31 ; 95 % CI : 0.11 -0.51 ; p = 0.004). This association remained with a positive correlation (r = 0.31 ) after adjustment in the multiple linear regression model (beta = 0.26 ; 95% CI: 0.006 -0.52 ; p = 0.045 )