However, for in-phase proportional multiaxial histories, where the principal directions do not change and the load path in a stress diagram follows a straight line, approximate calculation methods can be used to avoid the need for an incremental EP approach.
For the computer vision application, the incremental tensor subspace learning algorithm developed in [11] tracks the subspace of the unfoldings by using an incremental SVD approach.
The most cost effective treatment over a 6-month period was celecoxib plus PPI, with an incremental cost of US$108.300 and an incremental QALY gain of 0.06 resulting in an ICER of US$1,805.000 versus ibuprofen plus PPI (Table 4).
In this study, an incremental FLC structure is adopted, where the output of the controller is the parameter change to be added to the previous parameter value (and not the final value itself).
When celecoxib plus PPI was excluded from the base case analysis, celecoxib alone was the most cost effective intervention, with an incremental cost of US$229.000 and an incremental QALY gain of 0.03 giving an ICER of US$7,633.333 versus ibuprofen plus PPI (data not shown).
Indacaterol dominated in the comparison with salmeterol producing an incremental QALY gain of 0.008 and cost savings of £110 per patient over a 3-year time horizon.
The analysis showed that ranibizumab is dominant over vPDT and was associated with lower lifetime costs and an incremental QALY gain.
This represents an incremental QALY gain of 0.026 QALYs in the hospital arm compared to community, which is negligible in terms of quality of life impact.
Using the no-treatment option as a comparator, the observed difference in clinical effectiveness translated into an incremental QALY gain ranging from 0.06 in non-directive supportive counselling to 1.0 in TF-CBT + SSRI.
In the comparison with tiotropium over the same time horizon, indacaterol remained the dominant strategy, producing an incremental QALY gain of 0.008 and cost savings of £248 per patient.
