Table 2 Analysis of factors associated with VCT among the participants

Gender

 Female

16(13.6)

76(12.7)

Ref.1

Ref.1

 Male

59(78.7)

524(87.3)

0.51(0.27–0.95)

0.033

0.37(0.18–0.77)

0.008

Grade

 Freshman

10(13.3)

127(21.2)

Ref.1

Ref.1

 Sophomore

36(48.0)

199(33.2)

0.56(0.31–1.01)

0.054

0.60(0.32–1.14)

0.119

 Junior

24(32.0)

199(33.2)

0.39(0.15–1.04)

0.060

0.51(0.18–1.47)

0.211

 Senior

5(6.7)

75(12.5)

0.42(0.20–0.92)

0.030

0.46(0.20–1.07)

0.070

Province of household registration

 Zhejiang province

47(63.5)

444(74.0)

Ref.1

Ref.1

 Non-Zhejiang province

27(36.5)

156(26.0)

1.61(0.95–2.73)

0.077

2.11(1.17–3.81)

0.013

Whether it can be judged by appearance that a person is infected with HIV?

 Wrong/don’t know

26(38.2)

128(23.6)

Ref.1

Ref.1

 Correct

42(61.8)

415(76.4)

0.50(0.29–0.85)

0.010

1.04(0.55–1.96)

0.902

Whether it is necessary to actively seek VCT after engaging in high-risk sexual behavior^#

 Wrong/don’t know

8(11.8)

50(9.2)

Ref.1

——

 Correct

60(88.2)

493(90.8)

0.76(0.34–1.68)

0.499

——

Whether received AIDS-themed lectures or health education courses from the school in the past year

 No

8(11.8)

181(33.3)

Ref.1

Ref.1

 Yes

60(88.2)

362(66.7)

3.75(1.76–8.01)

0.001

3.96(1.49–10.50)

0.006

Whether received an HIV risk self-assessment conducted by the school in the past year

 No

17(25.0)

293(54.0)

Ref.1

Ref.1

 Yes

51(75.0)

250(46.0)

3.52(1.98–6.24)

0.000

2.31(1.17–4.59)

0.016

Whether learned about HIV/AIDS through the school network in the past year

 No

13(19.1)

148(27.3)

Ref.1

Ref.1

 Yes

55(80.9)

395(72.7)

1.59(0.84–2.99)

0.154

0.45(0.19–1.07)

0.070

Will you accept one night stand?

 Don’t accept/don’t know

21(30.9)

124(22.8)

Ref.1

Ref.1

 Yes

47(69.1)

419(77.2)

0.66(0.38–1.15)

0.144

0.63(0.34–1.19)

0.156

Do you accept commercial sex?

 Don’t accept/don’t know

26(38.2)

253(46.6)

Ref.1

——

 Yes

42(61.8)

290(53.4)

1.41(0.84–2.36)

0.211

——

Casual partner types

 School student

45(67.2)

343(64.0)

Ref.1

——

 Non-student

22(32.8)

193(36.0)

0.87(0.51–1.49)

0.610

——

Condom use with casual sexual partners

 Never used

28(41.2)

106(19.5)

Ref.1

Ref.1

 Occasional used

24(35.3)

224(41.3)

0.41(0.22–0.73)

0.003

0.56(0.28–1.10)

0.090

 Every time used

16(23.5)

213(34.9)

0.28(0.15–0.55)

0.000

0.45(0.21–0.97)

0.041

Have you had engaged in sexual activity with a steady partner in the past year

 No

12(17.6)

179(33.0)

Ref.1

Ref.1

 Yes

56(82.4)

364(67.0)

3.04(1.82–5.08)

0.000

1.87(0.91–3.83)

0.087

Whether had engaged in commercial sex in the past year

 No

31(45.6)

390(71.8)

Ref.1

Ref.1

 Yes

37(54.4)

153(28.2)

3.24(1.95–5.37)

0.000

1.98(1.07–3.66)

0.029

Measurement of self-efficacy in condom use (scores)

 Less than or equal to 4

16(23.5)

137(25.2)

Ref.1

Ref.1

 5–8

13(19.1)

175(32.2)

0.64(0.30–1.37)

0.247

0.75(0.32–1.73)

0.494

 9

39(57.4)

231(42.5)

1.45(0.78–2.69)

0.243

1.48(0.72–3.10)

0.282

Steady sexual partner types (n = 420)

 Student from the same school as the participant

34(60.7)

155(42.6)

Ref.1

——

 Student from a different school than the participant

12(21.4)

112(30.8)

0.49(0.24–0.99)

0.045

——

 Non-student

10(17.9)

97(26.6)

0.47(0.22–0.99)

0.048

——

Condom usage during sexual activity with a steady partner in the past year (n = 420)

 Never used

25(44.6)

102(28.0)

Ref.1

——

 Occasional used

20(35.7)

142(39.0)

0.58(0.30–1.09)

0.090

——

 Every time used

11(19.6)

120(33.0)

0.37(0.18–0.80)

0.010

——