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Table 1 Characteristics of syringe service clients in southern Wisconsin with respect to FTS use

From: Differences in drug use behaviors that impact overdose risk among individuals who do and do not use fentanyl test strips for drug checking

Characteristics

All

FTS use

No FTS use

N = 341

N = 274

N = 67

n(%) or m(sd)

Current drug of choice

 Heroin

241 (70.7)

202 (73.7)

39 (58.2)

 Fentanyl

43 (12.6)

36 (13.1)

7 (10.4)

 Opioid analgesics

10 (2.9)

2 (0.7)

8 (11.9)

 Cocaine or Crack Cocaine

32 (9.4)

23 (8.4)

9 (13.4)

 Methamphetamine

15 (4.4)

11 (4.0)

4 (6.0)

 Synthetics1

0 (0.0)

0 (0.0)

0 (0.0)

 Prescription anxiety drugs

0 (0.0)

0 (0.0)

0 (0.0)

 Prescription amphetamines

0 (0.0)

0 (0.0)

0 (0.0)

 Some other drug

0 (0.0)

0 (0.0)

0 (0.0)

Usual route of drug use

 Inject or shoot it into a vein

299 (87.9)

255 (93.4)

44 (65.7)

 Inject or shoot it into a muscle

4 (1.2)

2 (0.7)

2 (3.0)

 Snort it

24 (7.1)

10 (3.7)

14 (20.9)

 Smoke it

12 (3.5)

6 (2.2)

6 (9.0)

 Eat or swallow it

1 (0.3)

0 (0.0)

1 (1.5)

 Insert it rectally

0 (0.0)

0 (0.0)

0 (0.0)

 Use skin popping

0 (0.0)

0 (0.0)

0 (0.0)

 Some other method

0 (0.0)

0 (0.0)

0 (0.0)

Drug of choice use frequency in past 30 days

 Less than once per day

18 (5.3)

12 (4.4)

6 (9.0)

 1 time per day

15 (4.4)

10 (3.6)

5 (7.5)

 2 times per day

40 (11.7)

30 (10.9)

10 (14.9)

 3 or more times per day

268 (78.6)

222 (81.0)

46 (68.7)

 Polysubstance use2

252 (73.9)

210 (76.6)

42 (62.7)

 Years of drug use

12.2 (8.2)

11.9 (7.9)

13.0 (9.4)

 Lifetime count of opioid overdose

4.4 (8.4)

4.7 (9.1)

3.3 (4.5)

  1. Abbreviations: FTS, fentanyl test strips; m: mean; sd: standard deviation; adj: adjusted; unadj: unadjusted; GED: General Educational Development
  2. Missing: Gender – 2; Race and Ethnicity – 1; Education – 1; Employment – 1; Years of drug use – 3; Current drug of choice – 1; Usual route – 1; Overdose count – 4;
  3. Associations with continuous variables were tested using Mann–Whitney–Wilcoxon tests and associations with categorical variables were tested with chi-square tests
  4. 1Synthetics refers to synthetic opioids such as U47700, U4 or “Pink.”
  5. 2Polysubstance use is defined as use of more than one category of drugs excluding alcohol and marijuana