Table 1 Frequency tables with percentages
From: Role of dynamic ultrasound versus MRI in diagnosis and assessment of shoulder impingement syndrome
| Â | Acromio-clavicular osteoarthritis | Rotator cuff tendinosis | Calcific tendinitis | Partial-thickness tear | ||||
|---|---|---|---|---|---|---|---|---|
Statistic | Value | 95% CI | Value | 95% CI | Value | 95% CI | Value | 95% CI |
Sensitivity | 94.74% | 82.25% to 99.36% | 83.33% | 58.58% to 96.42% | 100.00% | 29.24% to 100.00% | 85.71% | 57.19% to 98.22% |
Specificity | 100.00% | 90.26% to 100.00% | 100.00% | 78.20% to 100.00% | 100.00% | 29.24% to 100.00% | 100.00% | 73.54% to 100.00% |
Negative likelihood ratio | 0.05 | 0.01 to 0.20 | 0.17 | 0.06 to 0.47 | 0.00 | Â | 0.14 | 0.04 to 0.52 |
Disease prevalence | 51.35% | 39.44% to 63.15% | 54.55% | 36.35% to 71.89% | 50.00% | 11.81% to 88.19% | 53.85% | 33.37% to 73.41% |
Positive predictive value | 100.00% | Â | 100.00% | Â | 100.00% | Â | 100.00% | Â |
Negative predictive value | 94.74% | 82.37% to 98.58% | 83.33% | 64.02% to 93.35% | 100.00% | Â | 85.71% | 62.45% to 95.58% |
Accuracy | 97.30% | 90.58% to 99.67% | 90.91% | 75.67% to 98.08% | 100.00% | 54.07% to 100.00% | 92.31% | 74.87% to 99.05% |