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Table 3 Secondary analyses among only the STI clinic population tested for Chlamydia trachomatis between January 2011 and July 2018 including determinants associated with repeat CT infections using patients repeatedly tested CT negative as the reference group

From: The characteristics of patients frequently tested and repeatedly infected with Chlamydia trachomatis in Southwest Limburg, the Netherlands

 

All individuals tested for CT

Repeatedly tested CT negative

Repeat CT infections

% (n)

% (n)

% (n)

OR (95%CI)

Adj. OR (95%CI)

Overall % (n)

100 (8007)

100 (1798)

100 (141)

  

Maximum number of sex partners

 Unknown

2.9 (232)

91.3 (21)

8.7 (2)

2.19 (0.44–10.81)

 

 0–1

25.7 (2059)

95.8 (207)

4.2 (9)

1

 

 2–3

42.7 (3415)

92.5 (769)

7.5 (62)

1.85 (0.91–3.79)

 

  ≥ 4

28.7 (2301)

92.2 (801)

7.8 (68)

1.95 (0.96–3.98)

 

Any urogenital symptoms

 Unknown

4.7 (374)

94.7 (36)

5.3 (2)

1.14 (0.26–4.95)

1.53 (0.28–8.29)

 Yes

53.9 (4315)

91.4 (1174)

8.6 (111)

1.99 (1.30–3.04)

2.17 (1.41–3.35)

 No

41.4 (3318)

95.5 (588)

4.5 (28)

1

1

Any Proctitis

 Unknown

4.7 (374)

94.7 (36)

5.3 (2)

0.73 (0.17–3.08)

 

 Yes

8.4 (676)

89.8 (230)

10.2 (113)

1.53 (0.98–2.40)

 

 No

86.9 (6957)

93.1 (1532)

6.9 (26)

1

 

Any oropharyngeal symptoms

 Unknown

4.7 (374)

94.7 (36)

5.3 (2)

0.70 (0.17–2.93)

 

 Yes

10.3 (826)

92.0 (289)

8.0 (25)

1.12 (0.71–1.75)

 

 No

85.0 (6807)

92.8 (1473)

7.2 (114)

1

 

Any notification for STI

 Unknown

3.5 (282)

95.1 (39)

4.9 (2)

0.98 (0.23–4.13)

1.09 (0.21–5.66)

 Yes

14.0 (1120)

81.5 (268)

18.5 (61)

4.35 (3.04–6.23)

4.55 (3.17–6.54)

 No

82.5 (6605)

95.0 (1491)

5.0 (78)

1

1

Transmission group

 MSW

30.2 (2415)

90.9 (341)

9.1 (34)

1.33 (0.88–2.03)

 

 MSM

11.2 (900)

93.5 (360)

6.5 (25)

0.93 (0.59–1.48)

 

 Women

58.6 (4692)

93.0 (1097)

7.0 (82)

1

 
  1. Statistically significant associations (p < 0.05) are depicted in bold
  2. Abbreviations: CT Chlamydia trachomatis, NG Neisseria gonorrhoeae, HIV Human immunodeficiency virus, STI Sexually transmitted infection, OR Odds ratio, CI Confidence interval, Adj. Adjusted