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Table 6 Intimate relationship characteristics associated with concurrent UAI in the past six months

From: Intimate relationship characteristics as determinants of HIV risk among men who have sex with regular male sex partners: a cross-sectional study in Guangzhou, China

Factors Concurrent UAI (had UAI with both regular male sex partners and non-regular male sex partners)
Row% (n/n1) OR (95% CI) AOR (95% CI) ORm (95% CI)
Had multiple RP in the past six months
 No 17.5 (48/274) 1 1  
 Yes 27.3 (36/132) 1.77 (1.08,2.89)* 1.67 (1.00,2.79)† NS
Expectation for this relationship
 Length of the relationship
   < 6 month 21.2 (45/212) 1 1  
   ≥ 6 month 20.1 (39/194) 0.93 (0.58,1.51) 0.95 (0.56,1.59)
 Believed this was a serious relationship
  No 24.7 (45/182) 1 1  
  Yes 17.4 (39/224) 0.64 (0.40,1.04)† 0.66 (0.40,1.10)
 Perceived that this relationship would continue for a long time
  No 32.1 (27/84) 1 1  
  Yes 17.7 (57/322) 0.45 (0.26,0.78)** 0.49 (0.27,0.87)* 0.49 (0.27,0.88)*
Conflict of interest
 Exchanged money or materials to maintain this sexual relationship
  No 19.8 (79/398) 1 1  
  Yes 62.5 (5/8) 6.73 (1.58,28.76)* 5.98 (1.31,27.22)* 5.90 (1.27,27.43)*
The dependence model
 Invested more emotion in this regular relationship
  No 19.2 (51/265) 1 1  
  Yes 23.4 (33/141) 1.28 (0.78,2.10) 1.42 (0.85,2.38)
 Your RP is dominant in this relationship
  No 21.6 (67/310) 1 1  
  Yes 17.7 (17/96) 0.78 (0.43,1.41) 0.87 (0.47,1.61)
Open communication on sexual relationship
 Openly discussed being monogamous in this relationship
  No 22.3 (55/247) 1 1  
  Yes 18.2 (29/159) 0.78 (0.47,1.29) 0.81 (0.48,1.37)
 Openly discussed a sexual agreement or requirement to use condoms when having sex with other partners
  No 24.4 (47/193) 1 1  
  Yes 17.4 (37/213) 0.65 (0.40,1.06)† 0.70 (0.42,1.15)
  1. p < 0.10, *p < 0.05, **p < 0.01
  2. AOR Adjusted odds ratio in multivariate logistic regression, OR m Adjusted odds ratio in multiple forward stepwise regression
  3. AOR and ORm were calculated after adjusting for confounders, and confounders including age (as a continuous variable), marital status (currently married or not), Guangzhou permanent resident (Yes or No), education level (higher than post-secondary education level or not), sexual orientation (bisexual/uncertain, or homosexual), and duration being MSM (less than five years, five years/ longer than five years), recruitment via Internet (Yes or No)
  4. n1: n1 actually is the n in Table 3, to distinguish the n in Tables 4, 5, 6, we use n1 to represent the n of Table 3
  5. NS Variables with p < 0.10 in multivariate logistic regression, but were not significant in multiple forward stepwise logistic regression