Table 2.
Urine Toxicology Results for Pregnant Smokers in Clinical Trials Early and Late in Pregnancy
| Drugs | Either intake or FAP (n = 115) | Intake (n = 97) | FAP (n = 72) | Both (n = 53) | |
|---|---|---|---|---|---|
| Intake | FAP | ||||
| None | 75 (65%) | 64 (66%) | 54 (75%) | 34 (64%) | 41 (77%) |
| Any drug | 40 (35%) | 33 (34%) | 18 (25%) | 19 (36%) | 12 (23%) |
| Cocaine | 2 (2%) | 1 (1%) | 1 (1%) | 1 (2%) | 1 (2%) |
| Benzodiazepine | 1 (1%) | 1 (1%) | 1 (1%) | 1 (2%) | 1 (2%) |
| Methadone | 1 (1%) | 1 (1%) | 0 (0%) | 0 (0%) | 0 (0%) |
| Opiates | 7 (6%) | 4 (4%) | 4 (6%) | 1 (2%) | 2 (4%) |
| THC | 36 (31%) | 29 (30%) | 16 (22%) | 17 (32%) | 10 (19%) |
| Amphetamines | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
Note.
Numbers of women (%) testing positive for illicit drug use either across the intake (~10th week of pregnancy) or FAP (~28th week of pregnancy) assessments, during their intake visit, during their final antepartum visit (FAP), and among those individuals for whom samples from both intake and FAP were available, the number testing positive at each time period. Due to some women testing positive for multiple substances, not all percentages add up to 100%. THC = tetrahydrocannabinols.