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. 2023 Jul 6;7:e47516. doi: 10.2196/47516

Table 1.

Characteristics of all consented participants (n=28).a

Characteristics All participants who consented for the study (n=28), n (%) Participants who consented and completed the welcome phase (n=15), n (%) Participants who consented but did not complete the welcome phase (n=13), n (%) P value
Age range (years) .42

18-29 5 (18) 4 (27) 1 (8)

30-45 9 (32) 5 (33) 4 (31)

46-64 14 (50) 6 (40) 8 (62)
Gender .33

Woman 5 (18) 4 (27) 1 (8)

Man 23 (82) 11 (73) 12 (92)
Race .37

American Indian or Alaska Native 1 (4) 0 (0) 1 (8)

Black or African American 3 (11) 2 (13) 1 (8)

Hispanic, Latino, Latina, or Spanish origin 4 (14) 1 (7) 3 (23)

Middle Eastern or North African 1 (4) 1 (7) 0 (0)

White or Caucasian 16 (57) 8 (53) 8 (62)

More than one race 3 (11) 3 (20) 0 (0)
Marital status .29

Single, divorced, or widowed 22 (79) 10 (67) 12 (92)

Married or committed relationship 3 (11) 2 (13) 1 (8)

Other or unknown marital status 3 (11) 3 (20) 0 (0)
Sexual orientation minority group 11 (39) 8 (53) 3 (23) .14
Past–30-day methamphetamine use .02

5-9 days 4 (14) 1 (7) 3 (23)

10-14 days 4 (14) 1 (7) 3 (23)

15-20 days 7 (25) 7 (47) 0 (0)

21-30 days 13 (46) 6 (40) 7 (54)
Methamphetamine goal >.99

Abstinence 21 (75) 11 (73) 10 (77)

Nonabstinent reduction 7 (25) 4 (27) 3 (23)
Prescribed medications for opioid use disorder .46

Buprenorphine 14 (50) 5 (33) 9 (69)

Injectable naltrexone 2 (7) 2 (13) 0 (0)

Methadone 1 (4) 1 (7) 0 (0)

None 11 (39) 7 (47) 4 (31)
Other EHRb-based substance use and mental health disorder measures

Prescribed amphetamine medication 1 (4) 1 (7) 0 (0) >.99

Co-occurring nonamphetamine SUDc (per EHR) 22 (79) 12 (80) 10 (77) >.99

Co-occurring mental health disorder (per EHR) 25 (89) 15 (100) 10 (77) .09

aP values were obtained using Fisher exact tests and reflect differences between participants who completed the welcome phase and those who did not complete the welcome phase.

bEHR: electronic health record.

cSUD: substance use disorder.