3. RESULTS
According to the linear regression analysis results, a significant relationship was found between the number of COVID-19 cases in both European [R2 = 0.721; F (1, 19) = 49.19; P= 0.001] and American [R2 = 0.972; F (1, 19) = 661.71; p= 0.001] countries and the sum of PI*SZ and PI*ZZ genotypes (Table 3).
Similarly, according to the linear regression analysis results, a significant relationship was found between the COVID-19 death numbers in both European [R2 = 0.602; F (1, 19) = 28.72; P= 0.001] and American [R2 = 0.921; F (1, 19) = 221.65; P= 0.001] countries and the sum of PI*SZ and PI*ZZ genotypes (Table 4).