Mean risk scores, positivity rates, estimated Gini coefficients and corresponding 95% CIs for gonorrhoea, chlamydia and syphilis in MSM participating in the Amsterdam Cohort Studies between 2009 and 2019 (n=959, n visits=12 274)
| Total (n visits=12 274) | |||
| Risk score, mean (SD) | 0.82 (0.74) | ||
| STI diagnoses | % positive | Gini coefficient | 95% CI |
| Gonorrhoea | 5.1 | 0.44 | 0.40 to 0.48 |
| Chlamydia | 4.6 | 0.40 | 0.36 to 0.44 |
| Syphilis | 0.7 | 0.43 | 0.31 to 0.55 |
| STIs | 9.4 | 0.40 | 0.38 to 0.43 |
| Anal gonorrhoea | 2.7 | 0.53 | 0.48 to 0.58 |
| Anal STI | 5.4 | 0.46 | 0.43 to 0.50 |
Created by the authors.