Sensitivity estimate (95% CI) | Specificity estimate (95% CI) | Pretest probability of admission (nearest %) | Positive LR; negative LR | PPV estimate (95% CI) | NPV estimate (95% CI) | |
Cameron et al 5 | 0.812 (0.782 to 0.840) | 0.774 (0.748 to 0.799) | 41 | 3.59; 0.24 | 0.712 (0.680 to 0.742) | 0.857 (0.833 to 0.878) |
Kosowsky et al 7 | 0.617 (0.518 to 0.709) | 6.23; 0.43 | ||||
Beardsell and Robinson. 8 | 0.690 (0.647 to 0.731) | 11.16; 8.87 | ||||
Stover-Baker et al 15 | 0.756 (0.702 to 0.805) | 0.845 (0.819 to 0.869) | 25 | 4.88; 0.29 | 0.622 (0.569 to 0.673) | 0.911 (0.889 to 0.930) |
Vaghasiya et al 16 | 0.767 (0.701 to 0.825) | 0.739 (0.702 to 0.774) | 24 | 2.94; 0.32 | 0.485 (0.428 to 0.543) | 0.908 (0.879 to 0.932) |
Alexander et al 17 | 0.715 (0.689 to 0.739) | 0.880 (0.869 to 0.890) | 25 | 5.94; 0.32 | 0.669 (0.644 to 0.694) | 0.901 (0.891 to 0.910) |
Dent et al 18 | 0.658 (0.609 to 0.704) | 0.795 (0.742 to 0.841) | 59 | 3.21; 0.43 | 0.824 (0.778 to 0.865) | 0.613 (0.560 to 0.664) |
Meta-analysis summary | 0.724 (0.674 to 0.768) | 0.832 (0.788 to 0.867) | 29 | 4.30; 0.33 | 0.63 (0.62 to 0.65) | 0.12 (0.11 to 0.12) |
LR, likelihood ratio; NPV, negative predictive value; PPV, positive predictive value.