IL6 and infection: Furthermore, IL6 presented with a statistically significant correlation with the MMSE in all participants (r = −0.172, −0.314 to 0.020, p = 0.042) and IL4 showed a negative correlation with the CSDD in the infection group (r = −0.321, −0.571 to −0.043, p = 0.018) which was not statistically significant in all participants (r = 0.016, −0.150 to 0.176, p = 0.850) (Table 4).