Table 2.
Differential Benefit for Probands and Mutation-Carrying Relatives, by Sex, With Selected Strategies and Varying Rates of Germline Testing Acceptance and Adherence With Preventive Interventions
Scenario and Patient | MMRpro/Germline vs. Referent Strategy*
|
IHC With BRAF Testing vs. Referent Strategy*
|
||||
---|---|---|---|---|---|---|
Discounted Incremental Life-Years per Person | Undiscounted Incremental Life-Years per Person | Discounted Cost per Life-Year Gained, $ | Discounted Incremental Life-Years per Person | Undiscounted Incremental Life-Years per Person | Discounted Cost per Life-Year Gained, $ | |
Base case | ||||||
| ||||||
Female proband | 0.174 | 0.365 | 83 300 | 0.191 | 0.401 | 106 600 |
| ||||||
Male proband | 0.084 | 0.171 | 131 900 | 0.092 | 0.187 | 180 400 |
| ||||||
Female mutation-carrying relative | 0.442 | 1.37 | 16 800 | 0.485 | 1.51 | 16 800 |
| ||||||
Male mutation-carrying relative | 0.461 | 1.31 | 7400 | 0.506 | 1.44 | 7400 |
Universal acceptance of germline testing and perfect screening adherence | ||||||
| ||||||
Female proband | 0.226 | 0.473 | 76 300 | 0.248 | 0.519 | 92 800 |
| ||||||
Male proband | 0.108 | 0.219 | 117 900 | 0.118 | 0.240 | 152 500 |
| ||||||
Female mutation-carrying relative | 0.768 | 2.39 | 16 900 | 0.843 | 2.62 | 16 900 |
| ||||||
Male mutation-carrying relative | 0.801 | 2.28 | 7600 | 0.880 | 2.50 | 7600 |
Universal acceptance of germline testing, perfect screening adherence, and prophylactic TAH-BSO at age 40 y in all probands and relatives with the Lynch syndrome | ||||||
| ||||||
Female proband | 0.576 | 1.20 | 37 100 | 0.632 | 1.32 | 43 600 |
| ||||||
Female mutation-carrying relative | 1.06 | 3.46 | 13 300 | 1.16 | 3.79 | 13 300 |
IHC = immunohistochemistry; TAH-BSO = total abdominal hysterectomy and bilateral salpingo-oophorectomy.
The referent strategy reflects no active effort to diagnose the Lynch syndrome.