Table 4 Z-score for two population proportions
From: Early postoperative compilations of bone filling in curettage defects
| Our rates (%) | n | Literature rates (%) | N | Z-score | P value | |
|---|---|---|---|---|---|---|
| Allograft | 2.70 | 74 | 3.24 | 401 | − 0.244 | 0.810 |
| Bone graft substitute | ||||||
| Calcium sulfate | 6.52 | 138 | − 0.849 | 0.395 | ||
| Calcium phosphate | 4.13 | 121 | 3.48 | 661 | 0.355 | 0.719 |
| All | 4.21 | 950 | − 0.040 | 0.968 | ||
| PMMA | 7.41 | 54 | 5.59 | 483 | 0.543 | 0.589 |