Table 10.
Meta-analysis results of diagnostic accuracy of feeding and activity behavior variables from wearable sensors.
| Diagnostic Accuracy 1,2 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sensitivity | Specificity | Accuracy | Precision | |||||||||
| Variable | Study No. | n | % (95% CI) | Study No. | n | % (95% CI) | Study No. | n | %(95% CI) | Study No. | n | % (95% CI) |
| Feeding behavior | ||||||||||||
| Eating time | 10 | 220 | 84.9 (70.0–92.7) | 9 | 210 | 96.3 (91.7–98.4) | 7 | 184 | 90.8 (86.3–93.9) | 9 | 210 | 87.3 (72.9–94.3) |
| Ruminating time | 9 | 205 | 92.2 (85.6–95.9) | 8 | 195 | 95.4 (91.0–97.7) | 6 | 169 | 93.9 (91.0–95.1) | 8 | 195 | 87.0 (77.7–92.5) |
| Drinking time | 4 | 149 | 21.9 (5.5–37.1) | 4 | 149 | 99.9 (99.7–100) | 4 | 149 | 98.8 (98.0–99.3) | 4 | 149 | 30.8 (15.0–45.1) |
| Activity behavior | ||||||||||||
| Lying time | 5 | 53 | 99.8 (98.2–100) | 5 | 53 | 99.9 (99.6–100) | - | - | - | 4 | 44 | 99.9 (96.6–100) |
| Standing time | 4 | 38 | 95.3 (87.9–98.2) | 4 | 38 | 98.3 (94.7–99.4) | - | - | - | 3 | 29 | 97.9 (86.7–99.7) |
| Walking time | 5 | 48 | 33.8 (1.1–60.0) | 5 | 48 | 98.0 (96.0–99.0) | - | - | - | 4 | 39 | 26.6 (10.5–57.1) |
| Active time | 3 | 134 | 93.1 (90.3–95.1) | 3 | 134 | 93.4 (90.8–95.3) | 3 | 134 | 93.4 (90.7–95.3) | 3 | 134 | 89.9 (85.7–92.9) |
| Inactive time | 3 | 28 | 59.2 (22.7–81.1) | 3 | 28 | 98.2 (95.6–99.3) | - | - | - | 3 | 28 | 89.3 (75.7–95.5) |
1 Study No.: number of studies; evaluation results analyzed under different conditions within the same article are counted as individual studies. 2 n, sample size; number of animals.