The Cedar Project WelTel mHealth intervention for HIV prevention in young Indigenous people who use illicit drugs: study protocol for a randomized controlled trial

Jongbloed, Kate; Friedman, Anton J.; Pearce, Margo E.; Van Der Kop, Mia L.; Thomas, Vicky; Demerais, Lou; Pooyak, Sherri; Schechter, Martin T.; Lester, Richard T.; Spittal, Patricia M.

doi:10.1186/s13063-016-1250-3

Trials

Table 1 Outcome measures

From: The Cedar Project WelTel mHealth intervention for HIV prevention in young Indigenous people who use illicit drugs: study protocol for a randomized controlled trial

Outcome measure	Specific variable	Analysis metric	Hypothesis (intervention > control)	Type	Analysis
Primary
HIV propensity (6 months)	HIV propensity score	Mean change - HIV propensity score	Decrease in HIV risk	Continuous	T test
Secondary
HIV propensity (12 months)	HIV propensity score	Mean change - HIV propensity score	Decrease in HIV risk	Continuous	T test
HIV vulnerability	Injection drug use	Mean change - proportion injection	Decrease in injection	Binary	χ² test
	High-frequency injection	Mean change - proportion frequent injection	Decrease in injection frequency	Binary	χ² test
	Needle sharing	Mean change - proportion needle sharing	Decrease in needle sharing	Binary	χ² test
	Participation in sex work	Mean change - proportion sex work	Decrease in sex work	Binary	χ² test
Resilience	Connor-Davidson Resilience Scale (CD-RISC)	Mean change - CD-RISC score	Increase in resilience	Continuous	T test
Psychological distress	Symptom Checklist-90-R (SCL-90-R)	Mean change - SCL-90-R score	Decrease in psychological distress	Continuous	T test
Access to drug-related services	Opioid substitution therapy (OST)	Mean change - proportion accessed OST	Increase in access OST	Binary	χ² test
	Needle exchange (NX)	Mean change - proportion attended NX	Increase in access NX	Binary	χ² test
	Safe injection facility (SIF)	Mean change - proportion visited SIF	Increase in access SIF	Binary	χ² test
	Drug treatment	Mean change - proportion seeking treatment	Increase in seeking treatment	Binary	χ² test
	Tried to quit using drugs	Mean change - proportion trying to quit	Increase in trying to quit	Binary	χ² test
Connection to culture	Participation in traditional ceremonies	Mean change - proportion participated in traditional ceremony	Increase in access to ceremony	Binary	χ² test
	Frequently living by traditional culture	Mean change - proportion lived by traditional culture	Increase in traditional culture	Binary	χ² test

All variables refer to behaviour in the 6-month period preceding the interview. All variables are measured as mean change in proportion or score from baseline

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ISSN: 1745-6215

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