Individual Study / Kirk et al.; AIDS Res Treat. 2013

Community Cohort of Illicit Drug Users

Community Cohort of Illicit Drug Users

Initiatives -
In response to the limited application of EMA approaches to out-of-treatment, high-risk populations, we sought to develop EMA methods for near real-time characterizationof illicit drug use occurring in users’ natural environments. In this paper, we describe the study design and participants of the EXposure Assessmentin Current Time (EXACT) study. Note: All published information has been collected from the article referenced in the Marker Paper box below. Therefore, there may be variations with more advanced versions of the study.
Start Year
2008
End Year
2013
Funding
Funding for the study was provided through the National Institute on DrugAbuse (Grants U01-DA-023832; R01-DA-04334; and R01-DA-12568). Larry W. Chang is supported by the National Insti-tute of Mental Health at the National Institutes of Health(K23MH086338). Ryan P. Westergaard is supported by the National Institutes of Health/National Institute on DrugAbuse (K23DA032306).

Design

Study design
Population cohort

Marker Paper

Kirk GD, Linas BS, Westergaard RP, et al. The exposure assessment in current time study: implementation, feasibility, and acceptability of real-time data collection in a community cohort of illicit drug users. AIDS Res Treat. 2013;2013:594671. doi:10.1155/2013/594671

PUBMED 24307943

Recruitment

Sources of Recruitment
  • Individuals

Number of participants

Number of participants
109
Number of participants with biosamples

Access

Availability of data and biosamples

Data
Biosamples
Other

Timeline

Population

EXposure Assessment in Current Time (EXACT) study participants were recruited from the AIDS Linked to the IntraVenous Experience (ALIVE) study, an ongoing, community-recruited, observational cohort ofpersons with a history of injecting drugs in Baltimore, MD.
Selection Criteria
Newborns
Twins
Countries
  • United States of America
Territory
Boltimore
Ethnic Origin
Health Status
Other criteria
Individuals were excluded if they had anymedical condition that would prevent them from operatingthe hand held device (e.g., visual or hearing impairment) orif they failed to attend the screening appointment where they were trained how to use the device.

Recruitment

Sources of recruitment
  • General population

Number of participants

Number of participants
109
Number of participants with biosamples
Data Collection Event
We describe the study design and evaluate the implementation, feasibility, and acceptability of an ecological momentary assessment (EMA) study of illicit drug users. Hand-held electronic diaries used in the initial trials were transitioned to a smartphone platform for the final trial with identical data collection. Random-prompts delivered five times daily assessed participant location, activity, mood, and social context.
Start Date
2008-11
End Date
2013-05
Data sources
  • Mobile data collection
    • Mobile phone
    • Smartphone apps