Table 2.
General demographics of participants in the comparison and intervention groups (n = 114).
| Characteristic | Comparison group | Intervention group | P value | |
| Total numbera, n (%) | 49 (41.5%) | 69 (58.5.0%) | .08 | |
| 14 days completedb, n (%) | 28 (59.6%) | 36 (52.9%) | .33 | |
| Area, n (%) | ||||
| Melbourne | 14 (30.4%) | 28 (42.6%) | .27 | |
| Goulburn Valley | 21 (45.7%) | 21 (29.4%) | ||
| Albury-Wodonga | 11 (23.9%) | 19 (27.9%) | ||
| Male participants, n (%) | 17 (37.0%) | 15 (22.1%) | .08 | |
| Age (years), mean (SD) | 17.4 (3.2) | 18.5 (3.2) | .06 | |
| Ethnic identificationc, n (%) | 4 (9.1%) | 10 (22.7%) | .37 | |
| Employment, n (%) | ||||
| Employed | 7 (15.2%) | 18 (26.5%) | .21 | |
| Unemployed | 4 (8.7%) | 9 (13.2%) | ||
| Student | 35 (76.1%) | 41 (60.3%) | ||
| Drug-related items c | ||||
| Ever had alcohol | 38 (86.4%) | 59 (88.1%) | .79 | |
| Ever been drunk | 31 (70.5%) | 53 (79.1%) | .30 | |
| Ever had a cigarette | 25 (56.8%) | 38 (56.7%) | .99 | |
| Ever tried marijuana | 18 (40.9%) | 33 (49.3%) | .39 | |
| Ever tried otherd drugs | 10 (22.7%) | 26 (38.8%) | .08 | |
| Pretest DASS c,e, mean (SD) | ||||
| Depression | 19.4 (10.8) | 20.4 (11.0) | .63 | |
| Anxiety | 11.0 (8.0) | 14.1 (9.7) | .08 | |
| Stress | 16.9 (7.9) | 20.3 (8.9) | .04 | |
a Binomial test on number at randomization (n = 118).
b Completed mobiletype entries at least twice daily for 14 days.
c Observed means (n = 111).
d Sedatives, tranquilizers, amphetamines, analgesics, inhalants, cocaine, LSD, and heroin.
e Depression Anxiety Stress Scale.