Table 1. Distribution of sample population in accordance with the categorized groups of procalcitonin level.

Levels of procalcitonin corresponds to group 1, < 0.05 ng/mL; group 2, 0.05-0.49 ng/mL; group 3, 0.5-1.99 ng/mL; group 4, 2-9.99 ng/mL and group 5, > 10 ng/mL. SD: standard deviation.