The role played by health expenditure was explored by Baldacci et al. [22], who made use of a panel of 120 developing countries between 1975 and 2000 to show that health expenditure within a particular time frame affects growth within that same time frame; lagged periods do not have any effect.
In the 20-year time frame, lag-time TTO produced lower values than lead-time TTO, but the results for the 15-year time frame were mixed.
In the 20-year time frame, none of the lag-time values were higher than the lead-time values.
Concurrent with our results, Bhaskaran and coworkers [ 27] found that 10 μg/m increases in NO2 levels were associated with a 1.1% increased risk of myocardial infarction (MI) only 1-6 hours after the exposure occurred, a time frame that would have fallen within lag 0 in our study.
The total time frame, composed of disease duration and lead or lag time, if applicable, is important because TTO values are often found to vary with it [ 11, 17, 18], notwithstanding the fact that the QALY model predicts them to be independent of the time frame, as implied by the condition of constant proportional trade-offs (CPTO).
It is worthwhile noting that most of the effect sizes of individual lags within the two hour time frame (lag0-lag4) are smaller than the cumulative effects.
"There is no shortage of raw materials but there is a time frame to capacity," he added, referring to the time lag in achieving production capacity.
To compute CC function, the time lag was set to 0.1 ms and the time frame was set to 150 ms. Mutual Information (MI) is a measure of the statistical dependence between two processes.
In terms of mean absolute deviation (MAD), differences between classic TTO and the other specifications (from least to most) were as follows: lag-time TTO in a 20-year time frame (MAD = 0.07); lead-time TTO in a 15-year time frame (MAD = 0.14); lead-time TTO in a 20-year time frame (MAD = 0.23); and lag-time TTO in a 15-year time frame (MAD = 0.26).
Classic TTO values with transformed negative values most resembled those from lag-time TTO in a 20-year time frame.
Classic TTO values most resembled those of the lag-time TTO in a 20-year time frame in terms of mean absolute difference.
