Table 1 Demographics of included patients.
Variables | SSI group (n = 71) | Non-SSI group (n = 882) | Statistic | P value |
|---|---|---|---|---|
Age, years, median (IQR) | 56 (48–70) | 47 (33–63) | U = 39,918 | < 0.001 |
Gender (%) | χ2 = 8.173 | 0.004 | ||
Male | 51 (9.6) | 483 (90.4) | ||
Female | 20 (4.8) | 399 (95.2) | ||
BMI, Kg/m2, median (IQR) | 23.0 (22.0–26.0) | 23.0 (22.0–24.4) | U = 20,738.5 | 0.695 |
Comorbidity (%) | ||||
Diabetes mellitus | 10 (17.5) | 47 (82.5) | χ2 = 8.958 | 0.003 |
Hypertension | 14 (10.2) | 123 (89.8) | χ2 = 1.779 | 0.182 |
Chronic liver disease | 1 (5.9) | 16 (94.1) | χ2 = 0.021 | 0.885 |
Chronic kidney disease | 3 (13.6) | 19 (86.4) | χ2 = 0.500 | 0.479 |
Chronic heart disease | 3 (9.4) | 29 (90.6) | χ2 = 0.006 | 0.937 |
Tuberculosis | 1 (12.5) | 7 (87.5) | 0.463 | |
Steroid use | 0 | 6 (100) | 1.000 | |
Immunosuppressive medication | 0 | 2 (100) | 1.000 | |
Smoking history (%) | χ2 = 3.036 | 0.219 | ||
No | 58 (7.2) | 747 (92.8) | ||
Former | 3 (18.8) | 13 (81.2) | ||
Current | 10 (7.6) | 122 (92.4) | ||
Hemoglobin, g/dL, median (IQR) | 12.5 (9.8–14.5) | 13.1 (12.0–14.4) | U = 25,430.5 | 0.012 |
Albumin, g/dL, median (IQR) | 3.6 (3.0–4.3) | 4.0 (3.6–4.5) | U = 22,932.5 | 0.001 |
Blood glucose, mg/dL, median (IQR) | 144 (106–199) | 108 (93–128) | U = 43,743 | < 0.001 |
