CRP and respiratory system disorder: When examining the relationships between CRP levels and procalcitonin levels, respectively, and various independent variables, the analysis revealed the following: For CRP levels, the analysis revealed that gender, the age group, the BMI group, diabetes mellitus, cardiac disease, respiratory diseases, ICU admission, O2 < 93%, ventilation, and ESRD were not found to have a significant association, as indicated by the p-values and the 95% CIs that include the values presented in Table 1.