Table 3: Estimated sensitivity and specificity of number of SDB symptoms for predicting an abnormal overnight oximetry

Number of SDB symptoms Estimated sensitivity 95% CI Estimated specificity 95% CI
1-3 17/17 (100%) 80% - 100% 42/77 (55%) 43% - 66%
2-3 8/17 (47%) 23% - 72% 62/77 (81%) 70% - 89%
3 5/17 (29%) 10% - 56% 73/77 (95%) 87% - 99%
- An exact binomial 95% confidence interval (CI) is given for each estimated sensitivity and specificity.