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Table 1 Characteristics of the study population (n = 2001)a, stratified by ethnicity

From: Differences in Chlamydia trachomatis seroprevalence between ethnic groups cannot be fully explained by socioeconomic status, sexual healthcare seeking behavior or sexual risk behavior: a cross-sectional analysis in the HEalthy LIfe in an Urban Setting (HELIUS) study

 

Dutch (n = 392)

South Asian Surinamese (n = 373)

African Surinamese (n = 317)

Ghanaian (n = 193)

Turkish (n = 389)

Moroccan (n = 337)

Total (n = 2001)

Demographics

 Sex [n,%] (n = 2001)

  Female

214

54.6%

185

49.6%

193

60.9%

121

62.7%

167

43.4%

174

51.6%

1056

52.8%

 Migration generation [n,%] (n = 1609)

  First generation

N/A

N/A

82

22.0%

136

42.9%

151

78.2%

137

35.2%

117

34.7%

623

38.7%

  Age in years [median, IQR] (n = 2001)

28

25–31

28

23–31

27

23–31

27

23–32

29

25–32

29

25–32

28

24–31

Socioeconomic status

 Educational level [n,%] (n = 1995)

  Low

21

5.4%

79

21.2%

51

16.1%

68

35.4%

143

36.9%

88

26.3%

450

22.6%

  Intermediate

94

24.0%

163

43.5%

178

56.3%

89

46.4%

166

42.8%

157

46.8%

847

42.5%

  High

277

70.7%

130

35.0%

87

27.5%

35

18.2%

79

20.4%

90

26.8%

698

35.0%

 Occupational level [n,%] (n = 1717)

  Low

53

15.2%

125

38.1%

112

44.1%

94

64.0%

172

49.3%

112

38.6%

668

38.9%

  Intermediate

64

18.3%

104

31.7%

90

35.4%

37

25.2%

110

31.5%

114

39.3%

519

30.2%

  High

232

66.5%

99

30.2%

52

20.5%

16

10.9%

67

19.2%

64

22.1%

530

30.9%

Sexual risk behavior

 Lifetime number of sex partners [median, IQR] (n = 1901)

7

3–13

3

1–6

5

3–10

4

2–6

1

1–7

2

1–7

4

1–10

 Age in years at sexual debut [median, IQR] (n = 1844)

17

16–19

17

16–19

16

15–18

17

16–19

18

16–22

18

16–22

17

16–19

Sexual contacts and condom use (preceding 6 months) [n,%] (n = 1836)

 No sexual contact

48

12.5%

67

18.8%

40

13.2%

43

26.5%

63

18.5%

61

19.7%

322

17.3%

 Steady partner onlyb

239

62.1%

236

66.3%

185

61.1%

93

57.4%

215

63.1%

200

64.5%

1168

62.9%

 Consistent condom use with casual partnersc

30

7.8%

31

8.7%

37

12.2%

11

6.8%

32

9.4%

29

9.4%

170

9.2%

 Inconsistent condom use with casual partnersc

68

17.7%

22

6.2%

41

13.5%

15

9.3%

31

9.1%

20

6.5%

197

10.6%

Sexual health seeking behavior

 HIV testing (preceding 6 months) [n,%] (n = 1952)

  Yes

44

11.3%

37

10.0%

83

26.4%

41

21.8%

26

6.9%

29

8.7%

260

13.2%

 STI testing (preceding 6 months) [n,%] (n = 1951)

  Yes

70

17.9%

49

13.2%

104

33.1%

40

21.2%

29

7.7%

45

13.5%

337

17.1%

Primary outcome

 C. trachomatis seropositivity [n,%] (n = 2001)

  Overall

147

37.5%

150

40.2%

227

71.6%

131

67.9%

121

31.1%

117

34.7%

893

44.6%

  Female

79

36.9%

77

41.6%

147

76.2%

81

66.9%

46

27.2%

66

37.9%

496

47.0%

  Male

68

38.2%

73

38.8%

80

64.5%

50

69.4%

75

34.1%

51

31.3%

397

42.0%

  1. IQR Interquartile range, N/A Not available, HIV Human immunodeficiency virus, STI Sexually transmitted infection
  2. Data are presented as n (%) or median (IQR)
  3. aNumbers may not add up due to missing values
  4. bSex exclusively with one partner, regardless of condom use
  5. cHas had a casual sex partner, irrespective of having had a steady partner