Table 2 Sensitivity and Specificity of Percent Reductions in Thyroid Volume at Each Measurement Time Point after Iodine-131 Therapy
| Â | Month(s) after iodine-131 therapy | ||||
|---|---|---|---|---|---|
| Â | 1 | 3 | 5 | 8 | 12 |
% reduction* | Sens Spec | Sens Spec | Sens Spec | Sens Spec | Sens Spec |
30% | 75.9 55.0 | Â | Â | Â | Â |
40% | 55.2 80.0 | 79.3 60.0 | Â | Â | Â |
50% | 41.4 95.0 | 75.9 85.0 | 92.6 53.3 | Â | Â |
60% | Â | 55.2 90.0 | 73.3 74.1 | 96.2 57.9 | Â |
70% | Â | Â | 51.9 93.3 | 73.1 78.9 | 85.2 60.0 |
80% | Â | Â | Â | 46.2 94.7 | 74.1 85.0 |
90% | Â | Â | Â | Â | 18.5 100.0 |