Table 1.
Descriptives of context by substance use survey type
| ALC-only (n = 1948) | CB-only (n = 3934) | SAM (n =935) | All surveys (n=6817) | |
|---|---|---|---|---|
| A: Locations: % (n) of surveys | ||||
| Home | 57.3 (1116) | 82.4 (3241) | 65.0 (608) | 72.9 (4965) |
| Friends place | 31.6 (616) | 22.4 (881) | 40.2 (376) | 27.5 (1873) |
| At a party | 9.9 (193) | 0.8 (32) | 12.6 (118) | 5.0 (343) |
| Bar/restaurant | 16.9 (387) | 7.2 (283) | 11.6 (108) | 11.4 (778) |
| Outside | 4.3 (84) | 9.9 (388) | 6.7 (63) | 7.9 (535) |
| Study space | 3.6 (70) | 11.6 (455) | 2.5 (23) | 8.0 (548) |
| Gym | 0.8 (16) | 3.0 (116) | 0.6 (6) | 2.0 (138) |
| B: Number of people: M (sd) | ||||
| Home | 3.81 (4.42) | 2.37 (2.76) | 3.78 (4.49) | 2.86 (3.51) |
| Friends place | 7.25 (5.92) | 3.85 (3.83) | 7.04 (5.93) | 5.16 (5.32) |
| At a party | 15.47 (7.20) | 12.44 (8.22) | 16.36 (6.67) | 15.49 (7.18) |
| Bar/restaurant | 9.34 (8.36) | 5.65 (7.61) | 11.92 (8.89) | 8.36 (8.46) |
| Outside | 6.11 (7.35) | 2.98 (5.23) | 4.75 (6.88) | 3.68 (5.93) |
| Study space | 9.13 (9.33) | 12.15 (9.04) | 8.87 (8.46) | 11.63 (9.11) |
| Gym | 8.25 (9.18) | 7.21 (8.22) | 10.50 (8.73) | 7.47 (8.32) |
| C: Situational Context: % (n) | ||||
| Weekend | 48.7 (965) | 28.1 (1105) | 49.8 (465) | 37.2 (2535) |
| Evening | 81.9 (1617) | 69.7 (2738) | 92.1 (861) | 76.5 (5216) |
Note: Panel A represents the % and number of surveys where the location was reported across the three substance use survey types; Panel B represents the average number of people reported at each location by substance use; Panel C represents the % and number of surveys completed on the weekend and in the evening (after 5pm) by substance use. Alc=alcohol-only occasion; CB=cannabis-only occasion; SAM=simultaneous alcohol and cannabis use occasion.