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. 2019 Jan 23;14(1):e0209933. doi: 10.1371/journal.pone.0209933

Table 5. Multivariate logistic regression for future HIV testing intent.

  Number of respondents (n) % Reporting Future HIV Testing Intent Unadjusted Odds Ratio (95% C.I.) p-Value Adjusted Odds Ratio (95% C.I.) p-Value
Age (years)
18–25 318 90.6 REF
26–35 546 90.1 0.98 (0.77–1.23) 0.843 1.06 (0.80–1.40) 0.682
36–45 503 87.3 0.90 (0.77–1.04) 0.153 0.97 (0.81–1.17) 0.770
46+ 265 83.0 0.85 (0.75–0.96) 0.007 0.93 (0.80–1.08) 0.327
Place of Birth
Japan 1579 88.0 0.65 (0.256–1.63) 0.354
Other 61 91.8 REF
Education
High School or less 418 86.1 REF
2 year university 270 87.4 1.03 (0.92–1.15) 0.629 1.04 (0.92–1.18) 0.495
University 793 88.5 1.24 (0.87–1.77) 0.227 1.21 (0.82–1.79) 0.341
Graduate degree 160 93.1 2.18 (1.11–4.27) 0.023 2.01 (1.00–4.07) 0.051
Employment
Full-time work 1122 88.1 REF
Part-time work 185 85.4 0.79 (0.50–1.23) 0.289 0.94 (0.57–1.55) 0.797
Student 167 94.0 2.11 (1.08–4.10) 0.028 1.78 (0.81–3.92) 0.152
Self-employed 97 84.5 0.73 (0.41–1.31) 0.295 0.77 (0.42–1.41) 0.393
Unemployed 68 86.8 0.88 (0.43–1.82) 0.729 1.14 (0.53–2.45) 0.746
Current marital status
Single 1568 88.8 REF
Married 72 73.6 0.35 (0.20–0.60) 0.000 0.45 (0.24–0.85) 0.013
Current residence
Central Tokyo 877 87.5 REF
Greater Tokyo 547 90.1 1.30 (0.92–1.84) 0.131
Other prefecture 206 85.4 0.84 (0.54–1.23) 0.427
Intercourse partners
Only men 1475 88.7 REF
Both men and women 146 89.7 1.13 (0.65–2.00) 0.677
Health
Healthy 1048 90.0 1.57 (1.16–2.13) 0.003 1.46 (1.06–2.03) 0.022
Fair/poor health 591 85.1 REF
Out to close friends
No 661 87.6 REF
Yes 961 88.6 1.10 (0.81–1.49) 0.557
Identify as a member of the gay community
No 272 88.6 REF
Yes 1358 88.1 0.95 (0.63–1.43) 0.804
Use gay apps for sex
No 553 87.6 REF
Yes 889 88.6 1.10 (0.81–1.50) 0.543
Use gay apps to find friends
No 398 83.9 REF
Yes 1228 89.7 1.68 (1.21–2.32) 0.002 1.58 (1.12–2.22) 0.009
Use gay apps to avoid being identified as gay
No 1487 88.2 REF
Yes 131 88.5 1.04 (0.59–1.82) 0.896
Use gay apps to find a serious relationship
No 763 86.2 REF
Yes 860 90.1 1.46 (1.07–1.97) 0.016 1.15 (0.83–1.59) 0.402
Ever attended A gay bar
No 704 86.1 REF
Yes 931 89.8 1.42 (1.05–1.92) 0.022 1.47 (1.06–2.05) 0.022
Recent participation in gay group/community or volunteer activities
No 1420 88.0 REF
Yes 217 88.9 1.09 (0.70–1.72) 0.699
Hattenba attendance
No 885 90.2 REF
Yes 780 86.0 0.67 (0.50–0.91) 0.010 0.64 (0.46–0.90) 0.011
HIV Knowledge: Having other STIs doesn't increase chance of infection
Correct 1500 88.1 REF
Incorrect 129 89.9 0.83 (0.46–1.51) 0.545
Anal sex with regular male partners
No 243 79.0 REF
Yes 1395 89.7 2.29 (1.61–3.26) 0.000 2.01 (1.31–3.10) 0.001
Anal sex with casual male partners
No 315 83.5 REF
Yes 1322 89.3 1.62 (1.15–2.28) 0.006 1.32 (0.85–2.06) 0.211
Vaginal sex with female partners
No 1347 88.4 REF
Yes 285 86.7 0.85 (0.58–1.24) 0.385
Condom use with regular male partnersa
Low 516 90.1 REF
High 879 89.5 0.94 (0.65–1.35) 0.729
Condom use with casual male partnersb
Low 230 80.4 REF
High 1092 91.1 2.50 (1.70–3.67) 0.000 2.09 (1.38–3.18) 0.001
Condom use with female partnersc
Low 57 80.7 REF
High 228 88.2 1.78 (0.82–3.85) 0.143    

a analysis based on a subsample of 1395 people who have anal sex with a regular partner; Low condom use = never/rarely use a condom; High condom use = most of the time/always use a condom

b analysis based on a subsample of 1322 people who have anal sex with a casual partner; Low condom use = never/rarely use a condom; High condom use = most of the time/always use a condom

c analysis based on a subsample of 285 people who have sex with women; Low condom use = never/rarely use a condom; High condom use = most of the time/always use a condom