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Table 1 Characteristics of GBMSM with and without experience of sexualized drug use (SDU) in the past year

From: Uptake and willingness to use PrEP among Chinese gay, bisexual and other men who have sex with men with experience of sexualized drug use in the past year

  All
(n = 580)
Without experience of SDU in the past year
(n = 498)
With experience of SDU in the past year (n = 82) With vs. without experience of SDU in the past year
  % % % OR (95%CI) AOR (95%CI)
Socio-demographic characteristics
 Age group
  18–30 56.6 57.6 50.0 1.0  
  31–40 31.6 30.5 37.8 1.43 (0.86, 2.37)  
   > 40 11.9 11.8 12.2 1.19 (0.56, 2.50)
 Highest educational level attained
  Senior high or below 15.5 14.3 23.2 1.0 1.0
  College or above 84.5 85.7 76.8 0.55 (0.31, 0.98)* 0.36 (0.19, 0.69)**
 Current marital status
  Currently single 84.0 84.9 78.0 1.0  
  Married/cohabited with a man 15.7 14.7 19.8 1.63 (0.91, 2.91)†  
  Married/cohabited with a woman 0.3 0.4 0.0 N.A.
 Monthly personal income (HK$)
   < 10,000 13.4 12.7 18.3 1.0  
  10,000-19,999 29.1 28.1 35.4 0.87 (0.44, 1.74)  
  20,000-39,999 36.7 37.8 30.5 0.56 (0.28, 1.13)  
  40,000 and above 19.7 20.5 14.6 0.49 (0.22, 1.12)†  
  Refuse to disclose 1.0 1.0 1.2 0.84 (0.09, 7.73)
 Current employment status
  Full-time 83.6 85.1 74.4 1.0 1.0
  Part-time/unemployed/retired/ students 16.4 14.9 25.6 1.97 (1.13, 3.43)* 1.37 (0.74, 2.56)
 Sexual orientation
  Homosexual 90.7 90.4 92.7 1.0  
  Bisexual 8.4 8.6 7.3 0.83 (0.34, 2.01)  
  Heterosexual 0.9 1.0 0.0 N.A.
 Channels of recruitment
  Outreach in gay venues 14.1 13.3 19.5 1.0  
  Online recruitment 57.6 58.6 51.2 0.59 (0.31, 1.12)  
  Peer referral 28.3 28.1 29.3 0.71 (0.35, 1.42)
Service utilization
 HIV testing in the last 12 months
  No 28.4 29.9 19.5 1.0  
  Yes 71.6 70.1 80.5 1.76 (0.99, 3.14)†
 Other HIV prevention services in the last 12 months (e.g., condom distribution, peer education, pamphlet and lectures)
  No 44.7 46.8 31.7 1.0 1.0
  Yes 55.3 53.2 68.3 1.89 (1.15, 3.11)* 1.77 (1.03, 3.05)*
History of sexual transmitted infections
 History of sexually transmitted infections other than HIV
  No 80.5 82.9 65.9 1.0 1.0
  Yes 19.5 17.1 34.1 2.52 (1.51, 4.21)*** 1.72 (0.97, 3.07)†
Sexual behaviors in the last 12 months
 Had had anal intercourse with regular male sex partners (RP)
  No 14.7 13.5 22.0 1.0 1.0
  Yes 85.3 86.5 78.0 0.55 (0.31, 0.99)* 0.90 (0.46, 1.73)
 Had had anal intercourse with non-regular male sex partners (NRP)
  No 39.1 44.0 9.8 1.0 1.0
  Yes 60.9 56.0 90.2 7.26 (3.43, 15.38)*** 7.75 (2.30, 26.09)**
 Condomless anal intercourse (CAI) with men
  No 60.5 63.7 41.5 1.0 1.0
  Yes 39.5 36.3 58.5 2.47 (1.54, 3.98)*** 2.46 (1.44, 4.21)**
 Multiple male sex partnerships
  No 30.7 34.1 9.8 1.0 1.0
  Yes 69.3 65.9 90.2 4.79 (2.26, 10.18)*** 0.84 (0.25, 2.80)
Use of pre-exposure prophylaxis (PrEP)
 Currently on PrEP
  No 96.0 97.8 85.4 1.0 1.0
  Yes 4.0 2.2 14.6 7.59 (3.23, 17.86)*** 4.09 (1.56, 10.73)**
Mental health status
 Depressive symptoms
  No clinical depressive symptoms (CES-D-10 score < 10) 64.1 65.7 54.9 1.0  
  Presence of clinical depressive symptoms (CES-D-10 score ≥ 10) 35.9 34.3 45.1 1.57 (0.98, 2.52)†
 Anxiety
  No/mild anxiety (GAD-7 score < 15) 94.0 94.4 91.5 1.0  
  Severe anxiety (GAD-7 score ≥ 15) 6.0 5.6 8.5 1.57 (0.66, 3.72)
  1. OR Crude odds ratios
  2. AOR: multivariate odds ratios obtained by multivariate logistic regression using variables in Table 1 that were found to be statistically significant in the univariate analysis as candidates
  3. 95%CI 95% confidence interval
  4. † 0.05 < P < 0.10, * P < 0.05, ** P < 0.01, *** P < 0.001
  5. N.A. Not applicable; --: not considered in the model