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Table 2 Risk of being tested, diagnosed and treated for genital Chlamydia trachomatis in the intervention and control groups, the risk ratios and the risk differences in a randomized trial of information and home sampling, Rogaland county, Norway 2006

From: Systematic screening with information and home sampling for genital Chlamydia trachomatis infections in young men and women in Norway: a randomized controlled trial

Outcome Intervention group Control group Risk ratio (95% confidence interval) Risk difference (95% confidence interval)
n/N Risk (%) n/N Risk (%)
Tested 1653/10000 16.5 1072/31519 3.4 4.9 (4.5 – 5.2) 13.1% (12.4 – 13.9)
Tested and diagnosed 105/10000 1.05 125/31519 0.40 2.6 (2.0 – 3.4) 0.65% (0.44 – 0.86)
Tested, diagnosed and treated 89/10000 0.89 111/31519 0.35 2.5 (1.9 – 3.4) 0.54% (0.34 –0.73)