Table 2.
Bivariate associations between individual-level frequency of substance use and individual-level CAS.
| Heavy Drinking
|
χ2 (2) | ||||||
|---|---|---|---|---|---|---|---|
| No Use (n = 158)
|
Lower Frequency (n = 94)
|
Higher Frequency (n = 119)
|
|||||
| n | % | n | % | n | % | ||
| Any CAS in TLFB | 106 | 67.1 | 68 | 72.3 | 78 | 65.5 | 1.20, p = 0.55 |
| Any CAS in Diary | 90 | 57.0 | 57 | 60.6 | 65 | 54.6 | 0.78, p = 0.68 |
| Mdn | IQR | Mdn | IQR | Mdn | IQR | H(2) | |
|
|
|||||||
| # CAS Acts in TLFB | 3.0 | 0, 8 | 1.0 | 0, 5 | 1.0 | 0, 5 | 4.92, p = 0.09 |
| Marijuana
|
χ2 (2) | ||||||
|---|---|---|---|---|---|---|---|
| No Use (n = 185)
|
Lower Frequency (n = 91)
|
Higher Frequency (n = 95)
|
|||||
| n | % | n | % | n | % | ||
| Any CAS in TLFB | 118 | 63.8 | 69 | 75.8 | 65 | 68.4 | 4.07, p = 0.13 |
| Any CAS in Diary | 106 | 57.3 | 58 | 63.7 | 48 | 50.5 | 3.32, p = 0.19 |
| Mdn | IQR | Mdn | IQR | Mdn | IQR | H(2) | |
|
|
|||||||
| # CAS Acts in TLFB | 1.0 | 0, 5 | 3.0 | 0, 7 | 2.0 | 0, 5 | 4.17, p = 0.12 |
| Club drugs
|
χ2 (2) | ||||||
|---|---|---|---|---|---|---|---|
| No Use (n = 235)
|
Lower Frequency (n = 66)
|
Higher Frequency (n = 70)
|
|||||
| n | % | n | % | n | % | ||
| Any CAS in TLFB | 150 | 63.8 | 47 | 71.2 | 55 | 78.6 | 5.78, p = 0.06 |
| Any CAS in Diary | 136 | 57.9 | 32 | 48.5 | 44 | 62.9 | 3.01, p = 0.22 |
| Mdn | IQR | Mdn | IQR | Mdn | IQR | H(2) | |
|
|
|||||||
| # CAS Acts in TLFB | 1.0 | 0, 5 | 2.0 | 0, 5 | 4.0 | 1, 11 | 11.51, p = 0.003 |
Note: Number of CAS acts was compared using a Kruskal-Wallis rank sum test (medians presented for interpretability). Number of acts from the diary was not computed due to inability to account for missing diary data when aggregating.