Table 1.
Characteristics of the study groups
| Parameter | Patients with UTI | Patients without UTI | P valuea |
|---|---|---|---|
| No. (%) of patients | 45 (18.3) | 241 (81.7%) | |
| Age, years | 84 (77–88) | 83 (78–87) | 0.41 |
| Gender, female, n (%) | 34 (75.6) | 145 (72.1) | 0.64 |
| Place of residence, rural, n (%) | 59 (29.4) | 13 (28.9) | 0.99 |
| Barthel Index | 77.5 (27.5–90.0) | 90 (70–95) | 0.003 |
| Norton scale | 15 (12–18) | 17 (15–18) | 0.04 |
| Multimorbidityb | 6 (5–8) | 5 (4–6) | 0.78 |
| White blood cells, G/L | 7.2 (6.0–9.1) | 6.5 (5.4–8.2) | 0.02 |
| CRP, mg/L | 5.5 (3.2–13.9) | 2.7 (1.2–6.5) | < 0.001 |
| BMI, kg/m2 | 28 (26–34) | 28 (25–32) | 0.32 |
| Albumin, g/L | 38 (35–42) | 40 (37–42) | 0.12 |
| Lymphocytes, K/μL | 1.48 (1.18–1.98) | 1.57 (1.23–1.99) | 0.64 |
| GFRc, mL/min/1.73 m2 | 49.9 (39.9–61.0) | 49.4 (37.3–60.7) | 0.94 |
| Serum creatinine, μmol/L | 106.1 (81.3–122.0) | 89.3 (75.1–111.4) | 0.2 |
Median values (IQR) are shown unless otherwise indicated
BMI body mass index, CRP C-reactive protein, GFR glomerular filtration rate, IQR interquartile range
aχ2 test or Fisher’s exact test, as appropriate, for categorical variables. Mann–Whitney test for interval variables
bThe number of chronic diseases of 14 included in the analysis
cEstimated using the Cockroft-Gault equation