Table 4.
Regression Slope Trend Estimates for Drug Use—NSDUH.
| Drugs | Term | β-Estimate | Standard Error | t | P | Lower CI | Upper CI |
|---|---|---|---|---|---|---|---|
| Cannabis—Annual | Year | 0.6509 | 0.1107 | 5.8808 | .0001 | 0.4097 | 0.8921 |
| Cannabis—Monthly | Year | 0.5822 | 0.0960 | 6.0671 | .0001 | 0.3731 | 0.7913 |
| Alcohol Monthly | Year | 0.1498 | 0.0825 | 1.8159 | .0925 | −0.0284 | 0.3281 |
| Binge Alcohol | Year | 0.0703 | 0.0896 | 0.7842 | .4481 | −0.1250 | 0.2656 |
| Cocaine Annual | Year | −0.0592 | 0.0260 | −2.2795 | .0417 | −0.1158 | −0.0026 |
| Pain Relievers | Year | −0.0849 | 0.0358 | −2.3698 | .0419 | −0.1660 | −0.0039 |
| Tobacco Monthly | Year | −0.2859 | 0.0933 | −3.0651 | .0098 | −0.4892 | −0.0827 |
| Cigarettes Monthly | Year | −0.3743 | 0.0817 | −4.5838 | .0005 | −0.5507 | −0.1979 |
Abbreviations: NSDUH, National Survey of Drug Use and Health; CI, confidence interval.