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Table 3 C. trachomatis positivity according to demographical and behavioural characteristics of sexually active students (n = 2,059)

From: Prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae infection in adolescents in Northern Italy: an observational school-based study

Demographical and behavioural characteristics Positive test/total of students (%) p-value a
Total 36/2059 (1.7) -
Gender   >0.05
 Males 11/762 (1.4)
 Females 25/1297 (1.9)
School location   0.032
 City of Brescia 18/685 (2.6)
 Others 18/1374 (1.3)
Number of sexual partners during lifetime   0.004
 1 7/883 (0.8)
 2 or more 29/1168 (2.5)
Number of sexual partners during the 6 months before the survey   <0.001b
 0 2/243 (0.8)
 1 17/1491 (1.1)
 2 or more 17/317 (5.4)
Used condom during last sexual intercourse c   0.048
 No 25/1035 (2.4)
 Yes 9/783 (1.1)
Regular condom use during the 6 months before the survey c   0.002
 No 32/1278 (2.5)
 Yes 2/486 (0.4)
  1. aχ2 test for the comparison between positive and negative students at the C. trachomatis test
  2. bχ2 test for linear trend
  3. cPercentages calculated on the total of sexually active students during the 6 months before the survey (n = 1816)
  4. p-value considered significant at p < 0.05