Table 3.
Input Parameters for the Costs, Utilities, and Side Effects Included in the Markov Model of Neovascular Age-Related Macular Degeneration
| Parameter Value | Value in USD (range) | Reference |
|---|---|---|
| Costs (2012 USB) | ||
| Visits and diagnostic testing | ||
| Initial office visit | 242 | CPT 99204 |
| Subsequent office visits | 185 | CPT 99214 |
| Optical coherence tomography at each visit | 74 | CPT 92134 |
| Fluorescein angiography, at initial evaluation | 260 | CPT 99235 |
| Interventions | ||
| Intravitreal ranibizumab | 2389 | CPT 67028 |
| Intravitreal bevacizumab | 356 | CPT 67028 |
| Costs of Managing Sequelae | ||
| Short-term | ||
| Endophthalmitis* | 4140 | CPT 67015/67028 |
| Blindness | 2846 | Frick33 |
| VTE | 32141 | Mahan34 and MacDougall35 |
| MI | 18326 | Freeman36 |
| CVA | 13307 | Freeman36 |
| Long-term | ||
| MI | 3557 | Freeman36 |
| CVA | 62796 | Freeman36 |
| Utilities | ||
| Health States | Brown37 | |
| 20/12–20/20 | 0.92 | |
| 20/25–20/40 | 0.84 | |
| 20/50–20/80 | 0.76 | |
| 20/100–20/160 | 0.66 | |
| ≤ 20/200 | 0.61 | |
| Short-term side effects (QALYs lost)^ | ||
| Endophthalmitis | −0.1 | Aaberg38 |
| VTE | −0.004 | Bajaj39 |
| Long-term Side Effects (annual utility)† | ||
| Blindness from endophthalmitis | 0.37 | Brown37 |
| CVA | 0.39 | Freeman36 |
| MI | 0.84 | Freeman36 |
| Relative risk of mortality after MI or CVA | 2 | Assumption |
| After MI | ||
| All-other nonvascular mortality | Varies by age | CDC Wonder database32 |
VTE = venous thrombotic event; MI = myocardial infarction; CVA = cerebrovascular accident, QALY = quality-adjusted life years; USD = United states dollars; CDC = Centers for Disease Control and Prevention; CPT = Current Procedural Terminology
Reference: 2011 Medicare Payments for physician and facility fees; Red Book. All costs adjusted to 2012 prices
includes cost of topical antibiotics, corticosteroids and cycloplegics
Short term side effects affected patients only during the first year after receipt of the intervention
Long term side effects affected patients for the remainder of time they cycled through the model