Table 5 The coverage probability of different propensity score methods with the number of sites set to 5
| Â | Â | Setting 1 | Â |
| Â | Global weight | Local weight | Proposed weight |
\({n}_{k}=500\) | 88.2 | 90.0 | 91.2 |
\({n}_{k}=1000\) | 93.0 | 93.0 | 95.0 |
\({n}_{k}=2000\) | 90.8 | 91.4 | 92.8 |
| Â | Â | Setting 2 | Â |
| Â | Global weight | Local weight | Proposed weight |
\({n}_{k}=500\) | 88.6 | 91.0 | 92.8 |
\({n}_{k}=1000\) | 89.0 | 91.0 | 93.2 |
\({n}_{k}=2000\) | 87.2 | 90.2 | 94.4 |