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Table 1 Clinical and demographic characteristics of the patients treated by colorectal resection

From: Diagnostic accuracy of C-reactive protein and procalcitonin in the early detection of infection after elective colorectal surgery – a pilot study

  Non-infected N = 29 Infected N = 21 P
Age, yrs 70.3 ± 10.9 70.7 ± 7.2 0.873
Male sex (M/F) 18/11 14/7 0.042
Body mass index 26.5 ± 5.0 28.5 ± 6.3 0.176
Charlson score, points 4.45 ± 1.64 3.86 ± 1.42 0.19
Co morbidities, N (%) 26 (89.7) 19 (90.5) 0.924
Diagnosis    0.971
Cancer, N (%) 24 (82.8) 17 (80.9)  
Diverticular disease, N (%) 4 (13.8) 3 (14.3)  
Other, N (%) 1 (3.4) 1 (4.8)  
Location of the disease    0.173
Ascending colon, N (%) 13 (44.8) 5 (23.8)  
Descending colon, N (%) 3 (10.3) 1 (4.8)  
Sigmoid / Rectum, N (%) 13 (44.8) 15 (71.4)  
Bowel preparation, N (%) 19 (65.5) 18 (85.7) 0.191
Antibiotic prophylaxis, N (%) 25 (86.2) 20 (95.2) 0.383
Surgical intervention    0.2
Right hemicolectomy, N (%) 13 (44.8) 4 (19.1)  
Left hemicolectomy, N (%) 3 (10.3) 2 (9.5)  
Sigmoidectomy, N (%) 6 (20.6) 9 (42.9)  
Total colectomy, N (%) 0 1 (4.8)  
Anterior resection, N (%) 7 (24.1) 4 (19.4)  
Other, N (%) 0 1 (4.8)  
Type of infection, N    
Anastomotic leak   1  
Intraabdominal abcess   1  
Surgical site infection   16  
Central line infection   1  
Pneumonia   1  
Urinary tract infection   1  
Infection diagnosis, day   7.2 ± 2.3  
Admission in ICU, N (%) 7 (50) 7 (50) 0.534
Length of stay, days 11 [7] 21 [14] 0.001
Mortality, N (%) 0 2 (9.5) 0.171
Preoperative CRP, mg/dL 0.39 [0.48] 0.5 [2.19] 0.473
Preoperative PCT, ng/dL 0.08 [0.04] 0.08 [0.07] 0.471
Preoperative white cell count, x106/L 6900 ± 1300 7000 ± 1900 0.891
Preoperative platelets, x109/L 242 ± 71 259 ± 70 0.389
Preoperative body temperature, °C 36.2 ± 0.4 36.4 ± 0.5 0.221
  1. ICU – Intensive Care Unit; CRP – C-reactive Protein; PCT – Procalcitonin. Data presented as mean ± SD or median [IQR].