Skip to main content
. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: Arch Sex Behav. 2016 Dec 16;47(1):95–106. doi: 10.1007/s10508-016-0879-z

Table 5.

Multivariable multinomial logistic regression models, with Condom Users as the referent group

Multiple Prevention
aOR1 (95% CI2)
Viral-load Sorters
aOR1 (95% CI2)
Serosorters
aOR1 (95% CI2)
HIV-Negative/Unknown

Age 1.00 (0.98, 1.03) 1.04 (1.01, 1.07) 1.00 (0.97, 1.02)
Relationship Status
  Monogamous Relationship 1.00 1.00 1.00
  Open Relationship 0.63 (0.25, 1.61) 0.59 (0.20, 1.78) 0.50 (0.23, 1.10)
  Single 0.40 (0.17, 0.93) 0.39 (0.15, 1.03) 0.98 (0.94, 1.02)
Treatment Optimism 1.08 (1.01, 1.16) 1.17 (1.09, 1.27) 1.11 (1.04, 1.18)
Personal Altruism 1.56(0.74, 3.28) 0.46 (0.23, 0.90) 0.63 (0.35, 1.13)
Sexual Sensation Seeking 1.09 (1.01, 1.18) 1.01 (0.91, 1.10) 1.04 (0.96, 1.12)
No. of Anal Sex Partners3 1.02 (1.00, 1.03) 1.02 (1.01, 1.04) 0.98 (0.94, 1.02)
sdCAS (vs. none)3,4 2.87 (1.47, 5.62) 8.60 (3.35, 22.06) 1.33 (0.69, 2.57)

HIV-Positive

Relationship Status
  Monogamous Relationship 1.00 1.00 1.00
  Open Relationship 0.58 (0.11, 3.12) 0.69 (0.18, 2.58) 1.61 (0.50, 5.17)
  Single 0.40 (0.10, 1.61) 0.13 (0.04, 0.46) 1.28 (0.56, 3.54)
Treatment Optimism 1.05 (0.95, 1.16) 1.15 (1.05, 1.26) 1.03 (0.97, 1.09)
Community Altruism 0.64 (0.36, 1.13) 0.63 (0.37, 1.06) 0.59 (0.41, 0.86)
No. of Anal Sex Partners1 1.02 (1.00, 1.03) 1.02 (1.01, 1.04) 0.98 (0.94, 1.02)
sdCAS (vs. none)1,2 4.82 (1.55, 14.99) 5.29 (1.89, 14.76) 1.56 (0.79, 3.07)
Bivariable multinomial logistic regression models, with Condom Users as the referent group,
comparing covariates of class membership.

Multiple Prevention Viral-load Sorters Serosorters

OR (95% CI) OR (95% CI) OR (95% CI)
HIV-Negative/Unknown

Age 1.01 (0.98, 1.04) 1.04 (1.01, 1.06) 1.00 (0.98, 1.03)
Non-Gay Identity (vs. Gay) 0.78 (0.33, 1.84) 0.53 (0.19, 1.46) 0.83 (0.38, 1.8)
Non-White Ethnicity (vs. White)
Education
  ≤High school diploma 1.00 1.00 1.00
  Some college 1.76 (0.66, 4.72) 0.57 (0.22, 1.46) 1.29 (0.56, 2.95)
  ≥College degree 2.16 (0.86, 5.38) 1.11 (0.52, 2.37) 1.46 (0.68, 3.12)
Annual Income
  <$30,000
  $30,000 – $59,999 1.45 (0.73, 2.86) 1.31 (0.62, 2.74) 1.66 (0.92, 3.01)
  ≥$60,000 2.13 (0.96, 4.75) 2.85 (1.31, 6.17) 1.05 (0.42, 2.62)
Relationship Status
  Monogamous Relationship 1.00 1.00 1.00
  Open Relationship 0.85 (0.35, 2.07) 0.69 (0.27, 1.76) 0.53 (0.25, 1.11)
  Single 0.51 (0.23, 1.13) 0.52 (0.23, 1.15) 0.22 (0.12, 0.44)
Anal Sex Preference
  Bottom (vs. Versatile) 0.34 (0.14, 0.81) 0.80 (0.34, 1.86) 0.96 (0.47, 1.94)
  Top (vs. Versatile) 0.90 (0.46, 1.79) 1.35 (0.62, 2.91) 0.93 (0.46, 1.90)
  No Anal Sex (vs. Versatile) 0.57 (0.13, 2.55) 0.03 (0.00, 34.7) 0.47 (0.09, 2.56)
Treatment Optimism Scale 1.11 (1.04, 1.18) 1.26 (1.18, 1.35) 1.13 (1.07, 1.20)
Personal Sexual Altruism 0.98 (0.5, 1.91) 0.22 (0.12, 0.39) 0.50 (0.3, 0.85)
Community Sexual Altruism 0.72 (0.43, 1.2) 0.27 (0.17, 0.45) 0.54 (0.34, 0.85)
Sexual Sensation Seeking 1.14 (1.07, 1.23) 1.15 (1.07, 1.24) 1.06 (0.99, 1.13)
No. of Male Anal Sex Partners8 1.03 (1.01, 1.04) 1.04 (1.02, 1.05) 0.98 (0.94, 1.02)
sdCAS (vs. none)8,2 4.32 (2.35, 7.97) 17.80 (7.48, 42.39) 9.94 (3.48, 28.39)

HIV-Positive

Age 0.97 (0.92, 1.02) 1.01 (0.97, 1.06) 1.01 (0.97, 1.04)
Non-Gay Identity (vs. Gay) 0.80 (0.23, 2.84) 0.60 (0.19, 1.91) 0.37 (0.14, 0.95)
Non-White Ethnicity (vs. White) 0.49 (0.13, 1.93) 0.62 (0.22, 1.84) 0.91 (0.44, 1.87)
Education
  ≤High school diploma 1.00 1.00 1.00
  Some college 7.28 (1.51, 35.13) 2.11 (0.70, 6.31) 2.06 (0.90, 4.73)
  ≥College degree 4.41 (0.95, 20.51) 1.72 (0.64, 4.64) 2.08 (1.01, 4.29)
Annual Income
  <$30,000 1.00 1.00 1.00
  $30,000 – $59,999 2.27 (0.78, 6.66) 3.21 (1.24, 8.28) 0.91 (0.40, 2.06)
  ≥$60,000 0.26 (0.01, 12.31) 3.25 (0.81, 13.09) 1.03 (0.30, 3.60)
Relationship Status
  Monogamous Relationship 1.00 1.00 1.00
  Open Relationship 0.74 (0.15, 3.68) 1.10 (0.35, 3.50) 1.63 (0.53, 5.03)
  Single 0.71 (0.20, 2.55) 0.30 (0.10, 0.89) 1.52 (0.58, 3.98)
Anal Sex Preference
  Bottom (vs. Versatile) 1.67 (0.53, 5.30) 3.89 (1.11, 13.60) 1.40 (0.67, 2.06)
  Top (vs. Versatile) 0.84 (0.24, 2.98) 3.75 (1.11, 12.73) 0.70 (0.32, 1.53)
Treatment Optimism Scale 1.09 (0.99, 1.20) 1.19 (1.09, 1.30) 1.06 (1.00, 1.12)
Personal Sexual Altruism 0.45 (0.22, 0.90) 0.50 (0.27, 0.93) 0.52 (0.32, 0.84)
Community Sexual Altruism 0.56 (0.33, 0.98) 0.55 (0.34, 0.89) 0.53, 0.35, 0.77)
Sexual Sensation Seeking 1.14 (1.02, 1.28) 1.12 (1.01, 1.23) 1.09 (1.02, 1.17)
No. of Male Anal Sex Partners8 1.01 (1.00, 1.02) 1.01 (0.99, 1.02) 1.01 (1.00, 1.02)
sdCAS (vs. none)8,2 4.94 (1.70, 14.38) 4.81 (1.96, 11.80) 1.86 (0.99, 3.52)
1

Past six months

2

Serodiscordant/Unknown Condomless Anal Sex

Bolded text indicates p<0.05.

1

Past six months

2

Serodiscordant/Unknown Condomless Anal Sex

Bolded text indicates p<0.05.