Table 1 Annual failure rates and health outcome parameters used in the analysis (base case scenario)
From: An economic evaluation of maxillary implant overdentures based on six vs. four implants
| Â | Distribution | Distribution parameters | Data Source |
|---|---|---|---|
Implant failure | Â | Â | Â |
6 implants | Triangular | Mode 0.018 (min-max 0.014-0.023) | [6] |
5 implants | Triangular | Mode 0.0275 (min-max 0.022-0.0345) | Interpolated from[6] |
4 implants | Triangular | Mode 0.037 (min-max 0.030-0.046) | [6] |
3 implants | Triangular | Mode 0.0465 (min-max 0.038-0.0575) | Interpolated from[6] |
2 implants | Triangular | Mode 0.056 (min-max 0.046-0.069) | Interpolated from[6] |
1 implant | Triangular | Mode 0.0655 (min-max 0.054-0.0805) | Interpolated from[6] |
Denture failure | Â | Â | Â |
6 implants | Triangular | Mode 0.026 (min-max 0.015-0.044) | [6] |
5 implants | Triangular | Mode 0.0305 (min-max 0.0185-0.0565) | Interpolated from[6] |
4 implants | Triangular | Mode 0.035(min-max 0.022-0.069) | [6] |
3 implants | Triangular | Mode 0.0395 (min-max 0.0255-0.0815) | Interpolated from[6] |
2 implants | Triangular | Mode 0.044 (min-max 0.029-0.094) | Interpolated from[6] |
1 implant | Triangular | Mode 0.0485 (min-max 0.0325-0.1065) | Interpolated from[6] |
no implants | Triangular | Mode 0.05 (min-max 0.01-0.10) | Assumption |
Patient satisfaction [1: full satisfaction; 0: no satisfaction] | Â | Â | Â |
6 implants | Point estimate | 0.89 | [8] |
5 implants | Point estimate | 0.89 | Interpolated from[8] |
4 implants | Point estimate | 0.89 | [8] |
3 implants | Point estimate | 0.865 | |
2 implants | Point estimate | 0.84 | [7] |
1 implant | Point estimate | 0.735 | Interpolated from[7] |
no implants | Point estimate | 0.63 | [7] |
Repair period adjustment factor [1: full satisfaction; 0: no satisfaction] | Triangular | Mode 0.9 (min-max 0.8-0.99) | Assumption |