We also tried a model adding an interaction variable for age and sex.
The sign of the coefficient of this interaction variable would be an indication of inducement.
The most important two-way interaction variable was that of temperature and WHSV.
In addition, we have calculated an interaction variable (NDTS*RISK) which is NDTS multiplied by a bankruptcy probability index.15.15
The ethnic interaction variable is formed from information on whether immigrants socialize with Germans and have visited Germans in their home within the last 12 months.
To compare the change over time between groups (AKI versus no AKI), we introduced an interaction variable between group and time to the ANOVA model.
Introducing interaction variables between immigrant status and gender improves the fit of the OLS Mincer equation: the coefficient of determination rises by 3 percentage points and all three interaction variable are highly significant.
The values of the variables used in the study are found to be within limits, with an average VIF of 2.23 and maximum value of 3.15 reported for the interaction variable of cash flow and tangibility of assets.
Its significance is the marginal contribution of each age group to the probability of finding work relative to the base group (ages 30 44), and also as an interaction variable.
Total income, household size and an interaction variable of total income and household size are included as an indirect indicator of the impact of the Affordable Care Act on off-farm work decisions.
To assess the sex-specific effect, we analyzed male and female data separately and further confirmed in the regression model by adding an interaction variable (genotypes*sex) with adjustment for conventional risk factors.
