Table 3.
Results of the simulation trials.
| Parameter | No. of studies | Value |
Events |
Heterogeneity between trials |
p-value for differences across groups | |||
|---|---|---|---|---|---|---|---|---|
| C-DACPR | V-DACPR | OR | 95% CI | p-value | I2 statistic | |||
| Mean chest compression depth, mm | 6 | 38.7 ± 14.3 | 41.8 ± 12.5 | –2.67 | –8.35, 3.01 | <.001 | 98% | .36 |
| Mean chest compression rate, /min | 7 | 91.3 ± 22.6 | 107.8 ± 12.6 | –13.40 | –21.86, −4.95 | <.001 | 97% | .002 |
| Total no-flow time, s | 3 | 126.2 ± 158.3 | 88.2 ± 117.7 | 3.28 | –0.61, 7.17 | .76 | 0% | .10 |
| Adequate chest compression rate, n/total (%) | 4 | 52/178 (29.2) | 94/171 (55.0) | 0.30 | 0.16, 0.57 | .19 | 37% | <.001 |
| Adequate chest compression depth, n/total (%) | 4 | 39/178 (21.9) | 53/171 (31.0) | 0.69 | 0.32, 1.51 | .16 | 42% | .36 |
| Adequate hands position, n/total (%) | 5 | 153/228 (67.1) | 173/221 (78.3) | 0.62 | 0.21, 1.81 | <.001 | 79% | .39 |
C-DACPR: conventional audio-instructed dispatcher-assisted bystander cardiopulmonary resuscitation; V-DACPR: video-instructed dispatcher-assisted bystander cardiopulmonary resuscitation; OR: odds ratio; CI: confidence interval.