The Exposure Assessment in Current Time Study: Implementation, Feasibility, and Acceptability of Real-Time Data Collection in a Community Cohort of Illicit Drug Users
Table 4
Sociodemographic, behavioral, clinical, and trial characteristics associated with ≥80% weekly EMA response rates.
Variable
Model A
Model B
Model C
Model D
OR
95% CI
P value
OR
95% CI
P value
OR
95% CI
P value
OR
95% CI
P value
Sociodemographic variables
Age, 50+
0.99
(0.55–1.79)
0.974
1.22
(0.66–2.25)
0.527
1.03
(0.56–1.89)
0.918
1.14
(0.61–2.10)
0.686
Male
1.4
(0.80–2.46)
0.239
1.21
(0.68–2.15)
0.516
1.34
(0.76–2.37)
0.305
1.24
(0.70–2.20)
0.463
African American
0.81
(0.32–2.07)
0.665
1.23
(0.45–3.38)
0.689
0.86
(0.33–2.22)
0.749
1.18
(0.42–3.29)
0.754
High school education
2.07
(1.15–3.67)
0.012
2.06
(1.15–3.66)
0.015
1.82
(1.03–3.25)
0.040
1.94
(1.08–3.47)
0.026
Used heroin or cocaine†
0.89
(0.65–1.42)
0.633
0.85
(0.51–1.40)
0.523
0.79
(0.49–1.29)
0.352
0.84
(0.51–1.40)
0.503
Used heroin or cocaine, past 6 months
1.18
(0.64–2.15)
0.599
1.72
(0.89–3.33)
0.106
1.19
(0.65–2.18)
0.576
1.73
(0.88–3.44)
0.114
Viral load
HIV negative
Reference
Reference
Viral load undetectable
0.50
(0.26–1.00)
0.046
1.61
(0.56–4.63)
0.378
Viral load detectable
0.31
(0.16–0.60)
0.000
0.89
(0.34–2.35)
0.821
Week
1
Reference
Reference
2
1.10
(0.67–1.81)
0.712
1.09
(0.66–1.82)
0.724
3
1.43
(0.80–2.54)
0.223
1.43
(0.80–2.56)
0.225
4
1.65
(0.90–3.03)
0.103
1.66
(0.90–3.06)
0.105
Trial
1
Reference
Reference
2
1.19
(0.55–2.53)
0.661
1.18
(0.56–2.52)
0.665
3
0.24
(0.11–0.53)
0.000
0.22
(0.07–0.69)
0.009
4
0.38
(0.17–0.85)
0.019
0.29
(0.09–0.92)
0.035
Used heroin or cocaine that week, reported by EMA. Bold indicates statistically significant associations with P value < 0.05.
