Table 3.
Secondary outcome: diagnostic accuracy for bradypnoea (respiratory rate <12 breaths per minute) during spontaneous breathing
| Study analysis | True positives | False positives | True negatives | False negatives | Sensitivity (95 % CI) | Specificity (95 % CI) | PPVc (95 % CI) | NPVd (95 % CI) |
|---|---|---|---|---|---|---|---|---|
| SBa (complete dataset) | 180 | 56 | 69 | 45 | 80 (74–85) | 55 (46–64) | 76 (71–81) | 61 (51–69) |
| SBa (reduced datasetb) | 104 | 17 | 48 | 16 | 87 (80–92) | 74 (63–84) | 86 (79–92) | 75 (64–85) |
Values are number and proportion
a SB spontaneous breathing
bDataset after elimination of movement with artifacts due to obvious movement
c PPV positive predictive value
d NPV negative predictive value