In determining if a child is neglected, consideration shall be given to:
1. The drug or alcohol abuse of the child’s parent, guardian or custodian.
2. The use by the mother of a dangerous drug, a narcotic drug or alcohol during pregnancy if the child, at birth or within a year after birth, is demonstrably adversely affected by this use. For the purposes of this paragraph, “dangerous drug” and “narcotic drug” have the same meaning prescribed in section 13-3401.