From: Can HPV Selfy be considered as a clinically validated HPV test for use in cervical cancer screening?
Correct statistic | Â | ||
---|---|---|---|
 | Selfy clin− | Selfy clin+ |  |
Selfy SS− | 708 | 16 | 724 |
Selfy SS+ | 37 | 30 | 67 |
 | 745 | 46 | 791 |
Specificity Selfy SS |  = 724/791 =  | 91.5% |  |
Specificity Selfy clin |  = 745/791 =  | 94.2% |  |
Relative specificity SS/clin | 0.97 | (95% CI 0.95–0.99)* |  |
T non inferiority | − 0.86 |  |  |
p non-inferiority | 0.81 | Â | Â |
Wrong statistic (b and c cells switched in the abcd matrix) | |||
---|---|---|---|
 | Selfy clin− | Selfy clin+ | |
Selfy SS− | 708 | 37 | 745 |
Selfy SS+ | 16 | 30 | 46 |
 | 724 | 67 | 791 |
Specificity Selfy clin |  = 745/791 =  | 94.2% |  |
Specificity Selfy SS |  = 724/791 =  | 91.5% |  |
Relative specificity clin/SS | 1.03 | (95% CI 1.01–1.05)* | |
T non inferiority | 6.60 | Â | Â |
p non-inferiority | < 0.0001 |  |  |