Table 1

Epidemiological characteristics of the study population by recruitment site in Paramaribo, Suriname, 2009–2010

Women recruited at STI clinicWomen recruited at family planning clinicp Value
(N=188)(N=813)
n (%)n (%)
Demographic characteristics
 Median age in years (IQR)28 (23–34)31 (25–37)0.001
 Age in years0.001
  <2568 (36.2)183 (22.5)
  25–2945 (23.9)197 (24.2)
  30–3433 (17.6)173 (21.3)
  ≥ 3542 (22.3)260 (32.0)
 Education<0.001
  Low72 (38.3)274 (33.7)
  Medium65 (34.6)424 (52.2)
  High33 (17.6)111 (13.7)
  Unknown18 (9.6)4 (0.5)
 Ethnic group*<0.001
  Caucasian5 (2.7)6 (0.7)
  Chinese2 (1.1)6 (0.7)
  Creole58 (30.9)199 (24.5)
  Hindustani19 (10.1)224 (27.6)
  Indigenous6 (3.2)9 (1.1)
  Javanese13 (6.9)145 (17.9)
  Maroon37 (19.7)85 (10.5)
  Mixed47 (25.0)136 (16.8)
Sexual behaviour
 Ethnic sexual mixing*<0.001
  Assortative only86 (48.6)502 (64.6)
  Disassortative91 (51.4)275 (35.4)
 Condom use*0.001
  Always34 (18.3)78 (9.7)
  Never or inconsistent152 (81.7)726 (90.3)
 Number of partners in preceding month*<0.001
  010 (5.7)34 (4.2)
  1136 (78.2)735 (91.6)
  >128 (16.1)33 (4.1)
 Median number of partners in preceding 12 months (IQR)1 (1–2)1 (1–1)<0.001
 Number of partners in preceding 12 months<0.001
  09 (4.8)11 (1.4)
  198 (52.1)643 (79.1)
  248 (25.5)108 (13.3)
  >233 (17.6)51 (6.3)
 Sex in exchange for money or goods*18 (9.7)6 (0.8)<0.001
Chlamydia trachomatis prevalence
C. trachomatis infection38 (20.2)78 (9.6)<0.001
  • *Numbers do not add up to the column total due to missing data, percentages do add up to 100%. Missing data: ethnic group n=4, ethnic sexual mixing n=47, condom use n=11, number of partners in the preceding month n=25, sex in exchange for money or goods n=18.

  • STI, sexually transmitted infection; IQR, Interquartile range.