Univariate analysis | Multiple logistic regression analysis | |||||||
---|---|---|---|---|---|---|---|---|
No willingness | Willingnessa | |||||||
N (%) | N (%) | OR | [95CI%] | p-value | AOR | [95CI%] | p-value | |
Questionnaire | ||||||||
Questionnaire online | 50 (30) | 32 (25) | 1 | |||||
Questionnaire face-to-face | 114 (70) | 98 (75) | 1.34 | [0.80; 2.26] | 0.266 | |||
Gender | ||||||||
Male | 125 (77) | 108 (84) | 1 | |||||
Female | 37 (23) | 21 (16) | 0.66 | [0.36; 1.19] | 0.166 | |||
Age – yearsb | ||||||||
Median [IQR] | 32 [27–38] | 34 [28–41] | 1.02 | [1.00; 1.05] | 0.087 | 1.04 | [1.01; 1.07] | 0.014 |
Stable housing | ||||||||
No | 61 (37) | 61 (47) | 1 | 1 | ||||
Yes | 103 (63) | 68 (53) | 0.66 | [0.41; 1.05] | 0.083 | 0.61 | [0.37; 1.01] | 0.053 |
Employment | ||||||||
No | 115 (71) | 87 (69) | 1 | |||||
Yes | 47 (29) | 39 (30) | 1.10 | [0.66; 1.82] | 0.721 | |||
Experience of incarceration | ||||||||
No | 103 (64) | 74 (58) | 1 | |||||
Yes | 58 (36) | 53 (42) | 1.27 | [0.79; 2.05] | 0.323 | |||
Opioid most injectedc | ||||||||
Buprenorphine | 121 (74) | 77 (59) | 1 | 1 | ||||
Heroin | 15 (9) | 25 (19) | 2.62 | [1.30; 5.28] | 0.007 | 2.94 | [1.42; 6.10] | 0.004 |
Prescription opiatesd | 28 (17) | 28 (22) | 1.57 | [0.87; 2.85] | 0.138 | 1.52 | [0.83; 2.76] | 0.173 |
Duration of opioid useb | ||||||||
Median [IQR] | 7 [4–10] | 6 [3–11] | 1.00 | [0.96; 1.04] | 0.963 | |||
Main reason for injecting | ||||||||
To get “high” | 24 (17) | 22 (22) | 1 | |||||
To avoid withdrawal symptoms or to feel good enough for daily functioning | 83 (59) | 63 (64) | 0.83 | [0.43; 1.61] | 0.578 | |||
Pleasure of the act | 33 (24) | 14 (14) | 0.46 | [0.20; 1.08] | 0.076 | |||
Other non-opioid drugs usedc | ||||||||
No | 39 (24) | 28 (22) | 1 | |||||
Yes | 124 (76) | 100 (78) | 1.12 | [0.65; 1.95] | 0.680 | |||
Alcohol consumptionc | ||||||||
No | 102 (62) | 74 (57) | 1 | |||||
Yes | 62 (38) | 56 (43) | 1.24 | [0.78; 1.99] | 0.360 | |||
Injection-related complications (0–10) | ||||||||
≤ 5 complications | 139 (85) | 105 (81) | 1 | |||||
> 5 complications | 25 (15) | 25 (19) | 1.32 | [0.72; 2.44] | 0.367 | |||
History of overdose | ||||||||
No | 139 (85) | 97 (75) | 1 | |||||
Yes | 25 (15) | 33 (25) | 1.89 | [1.06; 3.38] | 0.031 | |||
Currently on OMT | ||||||||
No | 25 (15) | 24 (18) | 1 | |||||
Yes | 139 (85) | 106 (82) | 0.79 | [0.43; 1.47] | 0.463 | |||
Self-reported HCV status | ||||||||
No | 106 (69) | 86 (70) | 1 | |||||
Yes | 47 (31) | 37 (30) | 0.97 | [0.58; 1.63] | 0.909 |