Table 7 External validation
From: Development and validation of the Cannabis Exposure in Pregnancy Tool (CEPT): a mixed methods study
Bioassay + | Bioassay - | Total | |
|---|---|---|---|
CEPT use “yes” | 10 | 13 | 23 |
CEPT use “no” | 0 | 61 | 61 |
Total: | 10 | 74 | 84 |
Value | 95% Confidence interval | ||
Sensitivity | 100.0% | 100.0%—100.0% | |
Specificity | 82.43% | 74.29% 90.57% | |
Positive predictive value | 43.48% | 32.88% 54.08% | |
Negative predictive value | 100% | 100.0%—100.0% | |