Table 1.
Health state transitions, per annual cycle
| Method failure (p) |
Discontinuation 1st year (p) |
Discontinuation subsequent year (p) |
Market weight |
|
|---|---|---|---|---|
| LNG-IUS 13.5mg | 0.00331 | 0.20002 | 0.05 | 1.000 |
| SARC4 | 0.0870 | 0.3409 | 0.05 | 1.000 |
| COC | 0.09003 | 0.33003 | 0.05 | 0.789 |
| Vaginal ring | 0.09003 | 0.33003 | 0.05 | 0.082 |
| Patch | 0.09003 | 0.33003 | 0.05 | 0.021 |
| Injectable | 0.06003 | 0.44003 | 0.05 | 0.108 |
| Subsequent method4 | 0.1443 | 0.3048 | 0.05 | 1.000 |
| LNG-IUS 13.5mg | 0.00331 | 0.20003 | 0.05 | 0.020 |
| OCs | 0.09003 | 0.33003 | 0.05 | 0.370 |
| Ring | 0.09003 | 0.33003 | 0.05 | 0.039 |
| Patch | 0.09003 | 0.33003 | 0.05 | 0.010 |
| Injection | 0.06003 | 0.44003 | 0.05 | 0.051 |
| Implant | 0.00053 | 0.16003 | 0.05 | 0.010 |
| IUD | 0.00803 | 0.22003 | 0.05 | 0.030 |
| LNG-IUS 20mcg | 0.00203 | 0.20003 | 0.05 | 0.030 |
| Barrier Methods | 0.18003 | 0.55503 | 0.05 | 0.218 |
| Tubal ligation | 0.00503 | 0.00003 | 0.05 | 0.046 |
| Tubal occlusion | 0.00503 | 0.00003 | 0.05 | 0.046 |
| No method | 0.46005 | 0.05006 | 0.05 | 0.129 |
Published source [12].
Assumption – set equal to LNG-IUS 20 mcg/24 hours (total content 52mg) discontinuation rate [8]
Published source [8].
Estimated for base case age group of 20–29 years as a weighted average – weights based on NSFG [7] (see ‘Market Weight’ column).
Published source [16].
Assumption.