Correlation of Age and Laboratory Parameters with Urine Flow Cytometry and Culture Results in Patients with Urinary Tract Infections.

Interestingly, while peripheral WBC and neutrophil counts were significantly associated with both positive cultures and high bacterial loads, CRP levels did not reach statistical significance ( p = 0.067).

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Regarding the borderline significance of CRP ( p = 0.067), the post-hoc power evaluation indicates that this near-significant trend is likely a reflection of the inherent biological variability of inflammatory kinetics in severe UTIs, rather than an underpowered sample size.

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Third, the sample size of 200 patients, while sufficient for our primary statistical analyses, may have lacked the power to identify smaller effects, such as the borderline significance observed for CRP levels.

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