Covariate | Bivariate random-effects model | ||||||
---|---|---|---|---|---|---|---|
 | Pooled sensitivity (95% CI)a | I2statistic | Sensitivity meta-regression P value | Pooled specificity (95% CI)b | I2statistic | Specificity meta-regression P value | Joint P valuec |
Chest radiography | Â | Â | Â | Â | Â | Â | Â |
Patient enrollment | Â | Â | Â | Â | Â | Â | Â |
Consecutive | 49% (30 to 68%) | 88% | 0.13 | 100% (95 to 100%) | 93% | 0.01 | 0.33 |
Nonconsecutive | 33% (22 to 46%) | 85% | Â | 100% (98 to 100%) | 82% | Â | Â |
Patient type | Â | Â | Â | Â | Â | Â | Â |
Trauma | 27% (0 to 56%) | NAd | 0.62 | 98% (93 to 100%) | NAd | 0.54 | 0.02 |
Nontrauma | 40% (28 to 53%) | 89% | Â | 100% (99 to 100%) | Â | Â | Â |
Thoracic ultrasonography | Â | Â | Â | Â | Â | Â | |
Patient enrollment | Â | Â | Â | Â | Â | Â | Â |
Consecutive | 90% (69 to 97%) | 96% | 0.93 | 99% (97 to 100%) | 93% | 0.59 | 0.41 |
Nonconsecutive | 82% (67 to 91%) | 91% | Â | 98% (96 to 99%) | Â | Â | Â |
Patient type | Â | Â | Â | Â | Â | Â | Â |
Trauma | 79% (48 to 100%) | NAd | 0.65 | 94% (88 to 100%) | NAd | <0.01 | 0.07 |
Nontrauma | 87% (73 to 94%) | 95% | Â | 99% (98 to 100%) | 85% | Â | Â |
Operator type | Â | Â | Â | Â | Â | Â | Â |
Emergency MD | 90% (76 to 96%) | 97% | 0.73 | 99% (97 to 100%) | 88% | 0.67 | 0.19 |
Nonemergency MD | 80% (61 to 91%) | 87% | Â | 97% (95 to 99%) | 79% | Â | Â |
Ultrasound probe type | Â | Â | Â | Â | Â | Â | Â |
Linear array | 82% (61 to 93%) | 94% | 0.23 | 99% (96 to 100%) | 87% | 0.29 | 0.68 |
Nonlinear array | 89% (72 to 96%) | 91% | Â | 98% (96 to 99%) | 85% | Â | Â |