Table 2.
Descriptive statistics and frequencies for all variables for each onset of regular cannabis use group
| Mean (SD) sample characteristics | |||
|---|---|---|---|
| Onset of regular cannabis use | |||
| 17 and younger (n = 300) | After 17 (n = 246) | No onset (n = 1336) | |
| Sleep duration (h) | 6.99 (1.45) | 7.21 (1.41) | 7.07 (1.26) |
| Current depression symptoms (CES-D) | 12.07 (8.87) | 12.17 (9.49) | 10.58 (8.35) |
| Frequencies | |||
| Onset of regular cannabis use | |||
| 17 and younger | After 17 | No onset | |
| Prior anxiety diagnosis | 13.67% (n = 41) | 12.50% (n = 30) | 7.52% (n = 100) |
| Prior depression diagnosis | 21.67% (n = 65) | 21.07% (n = 51) | 12.81% (n = 170) |
| No insomnia and sleep ≥6 h on weekdays | 62.46% (n = 183) | 74.17% (n = 178) | 74.77% (n = 981) |
| No insomnia with short sleep on weekdays (<6 h) | 8.53% (n = 25) | 4.58% (n = 11) | 6.25% (n = 82) |
| Insomnia | 28.96% (n = 86) | 20.82% (n = 51) | 19.03% (n = 254) |
| Insomnia with short sleep on weekdays (<6 h) | 9.89% (n = 29) | 7.92% (n = 19) | 5.49% (n = 72) |
CES-D = Center for Epidemiological Studies-Depression scale.