Skip to main content

Table 1 Demographic and preoperative characteristics of patients who underwent cholecystectomy due to cholecystits grouped by NLR

From: The utility of the preoperative neutrophil-to-lymphocyte ratio in predicting severe cholecystitis: a retrospective cohort study

  Total patients NLR <3 NLR ≥3 p-value
  (n =632) (n =376) (n =256)  
Age, years 55.18 (13 – 91) 53.48 (17 – 91) 57.68 (13 – 89) 0.001
Sex     0.001
   Men 297 (47.0) 156 (41.5) 141 (55.1)  
   Women 335 (53.0) 220 (58.5) 115 (44.9)
Body-mass index 24.51 ± 3.81 24.59 ± 3.86 24.35 ± 3.72 0.445
Previous abdominal surgery (%) 140 (22.2) 89 (23.7) 51 (19.9) 0.284
Severity of cholecystitis     < 0.001
   Simple cholecystitis 503 (79.6) 342 (91.0) 161 (62.9)  
   Severe cholecystitis* 129 (20.4) 34 (9.0) 95 (37.1)
Content in the gallbladder     0.122
   No 121 (19.1) 64 (17.0) 57 (22.3)  
   Stone(s) 511 (80.9) 312 (83.0) 199 (77.7)
Serum leukocyte count 7700 6200 11300 < 0.001
  (1500 – 39300) (2700 – 16500) (1500 – 39300)  
Presence of symptom     0.038
   Abdominal pain 586 (92.7) 342 (91.0) 244 (95.3)  
   Indigestion (discomfort) 25 (4.0) 19 (5.1) 6 (2.3)
   Fever/Chill 7 (1.1) 3 (0.8) 4 (1.6)
   Others 14 (2.2) 12 (3.2) 2 (0.8)
Admission route     < 0.001
   ED 280 (44.3) 120 (31.9) 160 (62.5)  
   Outpatient clinic 352 (55.7) 256 (68.1) 96 (37.5)
Time to incision     0.497
   Mean ± SD 35.1 ± 27.0 34.5 ± 26.9 36.0 ± 27.2  
   Median (range) 23.0 (1 – 120) 22.0 (1 – 120) 24.0 (2 – 119)
  1. Abbreviations: ED Emergency department, NLR neutrophil-to-lymphocyte ratio, SD standard deviation.
  2. *Severe cholecystitis included emphysematous cholecystitis, gangrenous cholecystitis, xanthogranulomatous cholecystitis, and perforated cholecystitis.