Table 1.
Characteristics of the study population (n = 2001)a, stratified by ethnicity
| 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% |
IQR Interquartile range, N/A Not available, HIV Human immunodeficiency virus, STI Sexually transmitted infection
Data are presented as n (%) or median (IQR)
aNumbers may not add up due to missing values
bSex exclusively with one partner, regardless of condom use
cHas had a casual sex partner, irrespective of having had a steady partner