FIG. 6.
(a) Correlation between KD and AI post-booster immunization. At the postbooster time point, the regression model between KD and AI is a curve (model F test: P < 0.001 from the ANOVA table, with an R2 of 0.296). Data points are shown as squares and the regression function as a solid line. (b) Correlation between KD and AI after booster immunization. At the postbooster time point, KD_X is 167.53 − 56.59*log10(AI), where KD_X = (KD)0.6 and log10(AI) equals the log-transformed values of AI (model F test: P < 0.001 from the ANOVA table, with an R2 of 0.296). Data points are shown as squares and the regression function as a solid line. The dashed lines around the regression line represent the 95% confidence curves for the mean of KD.