Table 2.
Substance use and other reinforcing behaviours before and during COVID-19 crisis (n = 2,344)
| Before COVID-19 | During COVID-19 | |||||
| M | SD | missing (n) | M | SD | missing (n) | |
| Substance-related addictive behaviours | ||||||
| Drinking volume (weekly number of standard drinks) | 6.83 | 12.45 | 1 | 5.69 | 9.73 | 7 |
| Heavy episodic drinking (weekly frequency) | 0.26 | 0.57 | 0 | 0.21 | 0.62 | 4 |
| Cigarettes (weekly number) | 16.51 | 38.35 | 0 | 15.70 | 39.26 | 0 |
| Illegal cannabis use (weekly frequency) | 0.33 | 1.23 | 0 | 0.35 | 1.33 | 0 |
| Other reinforcing behaviours | ||||||
| Gaming (hours per week) | 4.10 | 7.42 | 0 | 7.18 | 11.08 | 1 |
| Watching TV series (hours per week) | 4.73 | 6.02 | 1 | 8.28 | 9.07 | 2 |
| Watching internet pornography (hours per week) | 4.60 | 7.09 | 0 | 4.82 | 8.21 | 17 |
Note. M = Mean. SD = Standard deviation.