| Screening and Brief Intervention (SBI) group | Assessment control (AC) group | Total | p-value | |
Participants (%, n) | 48.8% (161) | 50.2% (169) | 100% (330) | – | |
Socio-demographics | Â | Â | Â | Â | |
Age (mean, SD) | 27.7 (6.2) | 28.0 (7.0) | 27.8 (6.6) | .698 | |
Marital status (% married, n) | 20.5% (33) | 27.2% (46) | 23.9% (79) | .153 | |
Occupation (% not working, n) | 38.5% (62) | 41.4% (70) | 40.0% (132) | .590 | |
Immigration status (% refugees, n)1 | 51.2% (82) | 47.6% (80) | 49.4% (162) | .511 | |
Persons per household (mean, SD) | 4.1 (2.7) | 4.1 (2.3) | 4.1 (2.5) | .950 | |
Education, years formal school (mean, SD) | 8.8 (4.4) | 9.3 (3.7) | 9.0 (4.1) | .267 | |
Home type (%, n)1 | House | 0 | 1.2% (2) | 0.6% (2) | .289 |
Lodge | 13.8% (22) | 8.9% (15) | 11.2% (37) | ||
Apartment | 69.4% (111) | 72.2% (122) | 70.8% (233) | ||
Part of apartment | 16.9% (27) | 17.8% (30) | 17.3% (57) | ||
Household type (%, n)2 | Family based | 66.2% (106) | 69.3% (115) | 67.8% (221) | .658 |
Rent sharing | 16.9% (27) | 17.5% (29) | 17.2% (56) | ||
other | 16.9% (27) | 13.3% (22) | 15.0% (49) | ||
Khat use | Â | Â | Â | Â | |
Age at starting regular khat use (mean, SD) | 20.6 (4.0) | 21.4 (3.8) | 21.0 (3.9) | .066 | |
Other substance use last year, excluding khat and tobacco (% of participants using any other substance, n) 3 | 26.1% (42) | 20.3% (32) | 23.2% (74) | .217 |