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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: Sex Transm Dis. 2015 Jan;42(1):30–36. doi: 10.1097/OLQ.0000000000000224

Table 3.

Adjusted Cox Proportional Hazard Ratios (HR) of STI Positivity in the 1-Year Post Release

CHLAMYDIA
 GONORRHEA
 SYPHILIS
FEMALE MALE FEMALE MALE FEMALE MALE
HR 95%CI HR 95%CI HR 95%CI HR 95%CI HR 95%CI HR 95%CI
Age (years)
   <18 1.63 1.36 1.95 1.80 1.59 2.04 1.19 0.88 1.62 1.40 1.20 1.63 0.49 0.06 3.89 0.73 0.31 1.76
   18–19 1.21 1.07 1.37 1.33 1.21 1.45 1.06 0.88 1.28 1.23 1.10 1.37 0.52 0.16 1.68 1.10 0.59 2.04
   20–24 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF
   25–29 0.71 0.62 0.82 0.68 0.62 0.74 0.75 0.63 0.90 0.76 0.68 0.84 2.83 1.32 6.07 1.30 0.82 2.05
   30–34 0.55 0.46 0.65 0.37 0.32 0.43 0.77 0.63 0.95 0.60 0.52 0.68 3.99 1.81 8.77 3.24 2.00 5.27
   35–39 0.40 0.33 0.49 0.25 0.21 0.31 0.60 0.48 0.76 0.48 0.40 0.56 6.35 2.94 13.70 4.12 2.56 6.64
   40–44 0.28 0.21 0.37 0.16 0.12 0.21 0.37 0.28 0.49 0.42 0.33 0.53 7.90 3.66 17.05 4.00 2.37 6.74
   45–49 0.25 0.18 0.35 0.11 0.09 0.15 0.26 0.17 0.40 0.33 0.26 0.42 7.27 2.92 18.08 6.13 3.40 11.06
   50+ 0.22 0.12 0.39 0.07 0.05 0.11 0.13 0.07 0.27 0.24 0.17 0.36 12.97 5.07 33.22 5.55 2.97 10.36
Race/ethnicity
   white 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF
   black 0.98 0.88 1.10 3.26 2.91 3.65 0.91 0.79 1.05 4.03 3.50 4.65 6.02 3.36 10.80 2.52 1.61 3.93
   Latino 0.52 0.32 0.85 1.00 0.78 1.29 0.26 0.09 0.75 0.64 0.43 0.94 21.30 4.08 111.28 1.67 0.72 3.84
   other/missing 0.42 0.11 1.60 0.00 . . 1.92 0.41 8.96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 . .
STI history (most recent diagnosis, years)
   Never 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF
   <1 year 3.46 3.06 3.92 3.02 2.75 3.31 2.85 2.44 3.34 4.09 3.71 4.50 16.61 10.55 26.13 8.96 6.37 12.60
   1–2 years 2.73 2.37 3.14 2.41 2.17 2.66 2.38 1.99 2.84 3.10 2.78 3.45 14.56 9.56 22.17 9.62 6.83 13.55
   2–3 years 2.30 1.98 2.67 2.14 1.91 2.40 1.97 1.63 2.38 2.90 2.58 3.25 10.77 7.25 15.99 6.81 4.73 9.80
Charge
   Violent 1.05 0.96 1.16 1.04 0.98 1.11 1.03 0.91 1.16 1.10 1.03 1.18 1.22 0.86 1.73 1.09 0.89 1.34
   Property 1.05 0.96 1.14 1.07 1.00 1.14 1.04 0.93 1.15 1.03 0.95 1.11 1.11 0.80 1.52 1.69 1.35 2.11
   Drug 1.27 1.16 1.39 1.09 1.03 1.15 1.12 0.99 1.26 1.03 0.97 1.10 1.27 0.96 1.66 0.95 0.74 1.21
   Prostitution 1.96 1.72 2.23 0.84 0.48 1.48 1.59 1.37 1.86 1.39 0.88 2.21 2.21 1.68 2.91 5.09 2.39 10.85
   Intoxication 0.82 0.72 0.92 0.93 0.85 1.01 0.79 0.69 0.92 0.94 0.84 1.04 1.09 0.75 1.60 1.13 0.87 1.48
   Conduct 0.99 0.90 1.10 1.10 1.04 1.16 1.01 0.88 1.15 1.06 1.00 1.13 0.98 0.71 1.37 0.93 0.75 1.17
Length of stay (days)
   1–2 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF
   3–7 0.83 0.77 0.89 0.94 0.89 0.99 0.94 0.86 1.03 0.94 0.89 0.99 0.77 0.61 0.97 0.87 0.72 1.06
   8–30 0.87 0.80 0.95 0.88 0.83 0.94 1.00 0.90 1.10 0.90 0.85 0.96 0.99 0.78 1.26 1.08 0.88 1.33
   >30 0.88 0.81 0.97 0.83 0.78 0.88 0.87 0.78 0.98 0.84 0.79 0.90 0.91 0.72 1.14 0.99 0.80 1.22
Jail history (most recent jail stay, days)
   Never 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF 1.00 REF
   <30 2.52 2.27 2.78 1.47 1.35 1.59 2.44 2.14 2.77 1.41 1.27 1.56 1.62 1.20 2.18 1.17 0.86 1.60
   30–365 1.83 1.71 1.96 1.35 1.29 1.42 1.92 1.76 2.10 1.28 1.21 1.34 1.30 1.06 1.60 0.97 0.82 1.15
   >365 1.27 1.17 1.38 1.08 1.02 1.15 1.34 1.21 1.49 0.95 0.89 1.01 0.86 0.66 1.14 1.05 0.88 1.24