From: Risk factors associated with injection initiation among drug users in Northern Thailand
 | Adjusted odds ratio (95% CI) |
---|---|
Age | Â |
Under 20 years old | Reference |
20~29 years old | 4.3 (2.7~6.8) |
30~39 years old | 6.0 (3.6~10.2) |
40 years old or older | 5.3 (3.0~9.3) |
Male | Â |
Thai ethnicity | Â |
Single | 1.7 (1.3~2.2) |
Rural residence | 0.50 (0.37~0.66) |
Education | Â |
No schooling | Reference |
≤ 6 years | 1.7 (1.2~2.3) |
7~11 years | 1.8 (1.2~2.7) |
12 or more years | 1.5 (1.0~2.3) |
Employed | Â |
Ever smoking | 2.9(1.5~5.3) |
Ever drinking | Â |
Ever in jail | 5.0 (4.0~6.4) |
No. of lifetime sex partners | Â |
One or no partner | Reference |
2~5 partners | 1.1 (0.83~1.6) |
6~10 partners | 1.5 (1.0~2.2) |
11 or more partners | 1.9 (1.4~2.7) |
Ever selling sex | Â |
Ever sex abused | 3.3 (1.2~9.1) |
Type of initiation drug | Â |
Opium | Reference |
Marijuana | 0.98 (0.68~1.4) |
Heroin | 2.7 (1.9~3.8) |
Amphetamine | 0.098 (0.057~0.17) |
Others | 1.2 (0.70~2.1) |
Age of drug initiation | Â |
Under 16 years old | Reference |
16~18 years old | 0.83 (0.60~1.1) |
19~23 years old | 0.56 (0.39~0.79) |
24 years old or older | 0.25 (0.16~0.37) |