depressive symptoms during pregnancy were associated with increased life stress ( p less than 0.001 ) , decreased social support ( p less than 0.001 ) , poor weight gain ( p less than 0.01 ) , and the use of cigarettes ( p less than 0.001 ) , alcohol ( p less than 0.001 ) , and cocaine ( p less than 0.05 ) .
C0032961
pregnancy
C0009170
cocaine