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Effect of the intervention on testing uptake at 6 weeks
| Intervention | Control | Risk difference | Relative risk | P value | |
| (95% CI) | (95% CI) | ||||
| Uptake of testing (any STI) at 6 weeks | 45.3% | 24.1% | 21.2% (12.5 to 29.8) | 1.88 (1.47 to 2.40) | <0.001 |
| Uptake of chlamydia and gonorrhoea testing at 6 weeks | 44.3% | 24.1% | 20.2% (11.7 to 28.8) | 1.84 (1.44 to 2.36) | <0.001 |
Similar results were observed for the analyses in the complete cases (online supplementary file 3).
