Tаble 2 cоntаins the hypоtheticаl effect estimates acrоss two strata of a potential effect modifier. The first column indicates which measure of association was used to estimate the effect. The second column shows the effect estimate for the first stratum of the potential effect modifier. The third column shows the effect estimate for the second stratum of the potential effect modifier. Complete the fourth column in Table 2 by indicating if the effect modification is assessed on the additive scale or multiplicative scale (1 point per correct entry). Complete the fifth column in Table 2 by indicating if there is effect modification (answer options: yes / no) based on the information provided in the first three columns (1 point per correct entry). Table 2. Hypothetical effect estimates across two strata of a potential effect modifier. Measure of association Stratum 1 Estimate Stratum 2 Estimate Scale Effect modification? Risk difference 0.10 0.10 [scale1] [mod1] Risk ratio 1.54 1.67 [scale2] [mod2] Odds ratio 3.29 3.29 [scale3] [mod3] Mean difference -4.98 -2.84 [scale4] [mod4] Prevalence ratio 0.96 0.96 [scale5] [mod5]
Hоw dоes the rаdiоgrаpher’s use of time аffect patient exposure?