Table 2.
Marijuana and other substance use, 2012–2015
| Substance Use Measure | 2012 n=566 (%) | 2013 n=599 (%) | 2014 n=630 (%) | 2015 n=597 (%) | P | P trend |
|---|---|---|---|---|---|---|
| Self-reported marijuana use | 16 (2.8) | 22 (3.7) | 45 (7.1) | 29 (4.9) | 0.002 | 0.0139 |
| Meconium sample at delivery positive for marijuana | 6 (1.1) | 0 (0.0) | 4 (0.6) | 8 (1.3) | 0.043 | 0.3319 |
| Urine sample at first prenatal visit positive for marijuana | 3 (0.5) | 9 (1.5) | 13 (2.1) | 5 (0.8) | 0.076 | 0.4828 |
| Urine sample at delivery positive for marijuana | 2 (8.7) | 1 (5.3) | 14 (31.8) | 2 (13.3) | 0.045 | 0.0523 |
| Any marijuana by self-report or biological sampling | 21 (3.7) | 28 (4.7) | 54 (8.6) | 35 (5.9) | 0.002 | 0.0158 |
| Meconium or urine sample positive for opioids | 3 (0.5) | 3 (0.5) | 7 (1.1) | 2 (0.3) | 0.331 | 0.9792 |
| Meconium or urine sample positive for illegal drugs | 4 (0.7) | 5 (0.8) | 8 (1.3) | 6 (1.0) | 0.77 | 0.4593 |
| Any illegal drugs or opioids by self-report or biological sampling | 11 (1.9) | 9 (1.5) | 22 (3.5) | 10 (1.7) | 0.064 | 0.6432 |
| Self-reported tobacco use | 47 (8.3) | 49 (8.2) | 57 (9.0) | 46 (7.7) | 0.862 | 0.8587 |
| Self-reported alcohol use | 5 (0.9) | 3 (0.5) | 13 (2.1) | 6 (1.0) | 0.059 | 0.3098 |
P values from both overall chi-square and additionally a test of trend.