Table 4 Factors associated with multi-drug use among MSM who had ever used drugs before or during sex in China, 2018 (N = 355)

Age (years)

 16–25

18 (47.4)

Ref

Ref

 26–35

17 (44.7)

0.82 (0.41–1.65)

0.64 (0.28–1.44)

 > 36

3 (7.9)

1.20 (0.32–4.47)

0.87 (0.19–4.03)

Legal marital statue

 Ever married/engaged

10 (26.3)

Ref

Ref

 Never married

28 (73.7)

0.57 (0.26–1.24)

0.61 (0.24–1.58)

Highest educational attainment

 High school or below

11 (28.9)

Ref

Ref

 Some college

9 (23.7)

0.67 (0.26–1.71)

0.69 (0.26–1.83)

 Bachelor’s degree and above

18 (47.4)

0.56 (0.25–1.25)

0.60 (0.73–5.07)

Annual income

 <$5000

8 (21.1)

Ref

Ref

 $5001–9000

17 (44.7)

1.85 (0.76–4.49)

1.92 (0.27–3.08)

 $9001–14,000

6 (15.8)

0.82 (0.27–2.46)

0.91 (0.51–5.91)

 >$14,000

7 (18.4)

1.51 (0.51–4.40)

1.73 (0.16–4.50)

Sexual orientation

 Other

2 (5.3)

Ref

Ref

 Bisexual

17 (44.7)

1.09 (0.22–5.43)

0.84 (0.16–4.50)

 Gay

19 (50.0)

0.42 (0.09–2.06)

0.35 (0.07–1.82)

Numbers of male sex partners in the past three months

 0

6 (15.8)

Ref

Ref

 1

11 (28.9)

0.71 (0.25–2.03)

0.68 (0.22–2.09)

 2 ~ 5

19 (50.0)

0.88 (0.33–2.33)

0.87 (0.31–2.47)

 >=6

2 (5.3)

1.27 (0.23–7.20)

1.36 (0.22–8.41)

Disclosure sexual of orientation to health providers, family, or friends

 Yes

21 (55.3)

Ref

Ref

 No

17 (44.7)

1.84 (0.93–3.64)

1.71 (0.83–3.5)

Sexual role in anal intercourse with men^a

 Insertive

10 (31.2)

Ref

Ref

 Receptive

14 (43.8)

0.99 (0.42–2.33)

1.03 (0.42–2.53)

 Both

8 (25.0)

1.47 (0.55–3.97)

1.45 (0.51–4.13)

Condomless anal intercourse in the past three months^a

 No

7 (21.9)

Ref

Ref

 Yes

25 (78.1)

2.21 (0.92–5.29)

2.34 (0.94–5.87)

Ever had group sex

 No

14 (36.8)

Ref

Ref

 Yes

24 (63.2)

3.22 (1.6–6.49) ^**

3.52 (1.65–7.48) ^**

Ever had commercial sex

 No

14 (36.8)

Ref

Ref

 Yes

24 (63.2)

4.01 (1.99–8.10) ^***

5.07(2.29–11.20) ^**

Ever had HIV testing

 Yes

24 (63.2)

Ref

Ref

 No

14 (36.8)

1.93 (0.95–3.91)

1.87 (0.85–4.09)

Ever had HIV self-testing^c

 Yes

19 (79.2)

Ref

Ref

 No

5 (20.8)

0.98 (0.35–2.75)

0.89 (0.29–2.73)

HIV testing result^c

 Negative

20 (83.3)

Ref

Ref

 Positive

4 (16.7)

1.35 (0.43–4.23)

1.60 (0.45–5.77)

Ever had syphilis testing

 Yes

20 (52.6)

Ref

Ref

 No

18 (47.4)

1.08 (0.55–2.11)

1.02 (0.5–2.08)

Ever had syphilis self-testing

 Yes

11 (28.9)

Ref

Ref

 No

27 (71.1)

0.79 (0.31-2.00)

0.72 (0.26–2.01)

Syphilis testing results in the most recent testing^d

 Negative

16 (80.0)

Ref

Ref

 Positive

4 (20.0)

1.28 (0.40–4.11)

1.02 (0.27–3.78)