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Table 1 Demographic and sexual risk behavior characteristics of women and men who have sex with men (MSM) with anorectal Chlamydia trachomatis infections

From: No indication for tissue tropism in urogenital and anorectal Chlamydia trachomatis infections using high-resolution multilocus sequence typing

Variable Total (N = 392) Women (N = 185) MSM (N = 207)  
  * n (%) * n (%) * n (%) P
Demographics           
Age in years (continuous) 383    185    198    <0.001
  Median (IQR)   28 (22–39)   23 (20–26)   38 (31–45)  
Age in years (categorical) 383    185    198    <0.001
  ≤15   1 (0.3%)   1 (0.5%)   0 (0.0%)  
  15-19   25 (6.5%)   25 (13.5%)   0 (0.0%)  
  20-24   107 (27.9%)   95 (51.4%)   12 (6.1%)  
  25-29   72 (18.8%)   41 (22.2%)   31 (15.7%)  
  30-39   84 (21.9%)   15 (8.1%)   69 (34.8%)  
  ≥40   94 (24.5%)   8 (4.3%)   86 (43.4%)  
Sexual behavior           
Number of partners in preceding 6 months (continuous) 286    185    188    <0.001
  Median (IQR)   4 (2–10)   3 (1–5)   10 (4–20)  
Receptive anal intercourse 381    183    198    <0.001
  Nonea   31 (8.1%)   22 (12.0%)   1 (0.5%)  
  Safe   70 (18.4%)   16 (8.7%)   54 (27.3%)  
  Unsafeb   280 (73.5%)   145 (79.2%)   143 (72.2%)  
Notified of STI by a sexual partner 383    185    198    0.961
  No   306 (79.9%)   148 (80.0%)   158 (79.8%)  
  Yes   77 (20.1%)   37 (20.0%)   40 (20.2%)  
STI related symptoms 383    185    198    <0.001
  No   233 (60.8%)   132 (71.4%)   101 (51.0%)  
  Yes   150 (39.2%)   53 (28.6%)   97 (49.0%)  
HIV status 392    185    207    <0.001
  Unknown   19 (4.8%)   3 (1.6%)   16 (7.7%)  
  Negative   278 (70.9%)   182 (98.4%)   96 (46.4%)  
  Positive   95 (24.2%)   0 (0.0%)   95 (45.9%)  
Received money for sex in preceding 6 months 383    185    198    <0.001
  No   354 (92.4%)   158 (85.4%)   196 (99.0%)  
  Yes   29 (7.6%)   27 (14.6%)   2 (1.0%)  
  1. Abbreviations: MSM men who have sex with men, STI sexual transmitted infection, HIV human immunodeficiency virus, IQR interquartile range, P P-value.
  2. Significant P-values in bold.
  3. *Number of individuals with available data.
  4. aOf all women reporting no receptive anal intercourse, 14 were prostitutes and were also tested for rectal C. trachomatis infections following routine guidelines, 5 women were accidently tested, 3 women were tested for reporting anal discharge, and 1 women was tested due to notification by a sexual partner.
  5. bEight women reported receptive anal intercourse but condom use was unknown. These were all included as having unsafe receptive anal intercourse, as this would be the most likely explanation for infection.