Table 3 Influence factors associated with Willingness to use PrEP for HIV prevention

Age (years)

0.98 (0.95–1.00)

–

–

Age group

–

–

  ≤ 20

1

 21–30

1.15 (0.83–1.59)

 31–40

0.85 (0.48–1.51)

  ≥ 45

1.43 (0.32–6.45)

Residential region

–

–

 Eastern China

1

 Central China

0.78 (0.57–1.06)

 Western China

0.95 (0.69–1.30)

Solitary

0.99 (0.76–1.29)

–

–

Education

 Middle school or below

1

0.023

1

 High school or equal

4.51 (1.46–13.92)

0.012

4.47 (1.40–14.28)

 Undergraduate

5.03 (1.67–15.12)

0.007

4.80 (1.53–15.04)

 Graduate or above

3.76 (1.21–11.73)

0.036

3.52 (1.09–11.35)

Occupation

 Students

1

0.08

1

 Employees

0.93 (0.72–1.20)

0.46

0.91 (0.70–1.18)

 Unemployed

0.58 (0.34–0.99)

0.027

0.54 (0.32–0.93)

Annual Income ($)

–

–

  < 7500

1

 7500–15,000

0.93 (0.69–1.26)

 15,000–30,000

1.28 (0.81–2.04)

 30,000–450,000

1.18 (0.49–2.83)

  > 450,000

1.21 (0.42–3.51)

No. male anal sex partners in the past 6 months

 0–5

1

0.15

1

 6–10

1.53 (0.83–2.82)

0.53

1.24 (0.64–2.39)

  > 10

4.82 (1.17–19.94)

0.06

4.13 (0.94–18.06)

Had male sex partners with HIV positive

1.45 (0.57–3.71)

–

–

HIRI-MSM risk score

1.05 (1.02–1.07)

0.13

1.03 (0.99–1.08)

Having condomless anal sex within the last 6 months

1.43 (1.07–1.90)

0.82

1.06 (0.67–1.65)