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Table 2 Characteristics of HIV+ patients active in care at SAC or CSTI at time of their syphilis diagnosis between 1/1/2006 and 12/31/2016. (Note − 158 patients had a single syphilis episode; 36 patients had more than 1 episode. N = 249 syphilis episodes total)

From: Increasing incidence of syphilis among patients engaged in HIV care in Alberta, Canada: a retrospective clinic-based cohort study

Length of time in years between HIV diagnosis and Syphilis diagnosis (n = 249)
Mean (range) 7.7 (0.1–25.6)
< 1 year (N/%) 26 (10)
1–5 years 82 (33)
6–10 64 (26)
> 10 years 77 (31)
Age in years at time of each Syphilis diagnosis (n = 249)
Mean (range) 47 (21–72)
< 30 (N/%) 43 (17)
30–39 74 (30)
40–49 81 (33)
50–59 37 (15)
> 59 14 (6)
Length of time in years followed in care at SAC (n = 249)
Mean (range) 4.9 (0.1–23.3)
< 1 (N/%) 77 (31)
1–5 101 (41)
6–10 31 (12)
11–15 24 (10)
> 15 16 (6)
Number of self-reported sexual partners within the preceding 6 months of a syphilis diagnosis (n = 193)
Mean (range) 4.7 (0–50)
0 (N/%) 14 (7)
1–5 144 (75)
6–10 15 (8)
11–15 6 (3)
16–20 8 (4)
> 20 6 (3)