Subscribe to our newsletter. I n 1999, the National Household Survey on Drug Abuse estimated 14.8 million Americans were current illicit drug users, meaning they had used an illicit drug during the month prior to interview. This estimate represents 6.7 percent of the population 12 years old and older.
M arijuana is the most commonly used illicit drug.
It is used by 75 percent of current illicit drug users. Among pregnant women age 15-44 years, 3.4 percent reported using illicit drugs in the month prior to interview. G iven the numbers, and a number of questions I have received regarding marijuana use in pregnancy and breastfeeding, I did some research, to see just what I could find. Keep in mind that this information is based upon scientific research, in which the control of variables and methology, play an important part assessment of conclusions. Whenever we consider the validity of any study, these processes must be considered.