Significance of preoperative C-reactive protein as a parameter of the perioperative course and long-term prognosis in squamous cell carcinoma and adenocarcinoma of the oesophagus

Table 1 Tumour characteristics

Parameter	CRP < 5.0 mg/dL	CRP ≥ 5.0 mg/dL	P-value
	(n = 127)	(n = 164)
Histologic type (n = 289)
-squamous cell carcinoma	56 (44%)	89 (55%)
-adenocarcinoma	62 (49%)	60 (37%)	0.150
-undifferentiated	6 (5%)	12 (7%)
-other	3 (2%)	1 (1%)
Location (n = 288)
-upper third	9 (7%)	15 (9%)
-middle third	42 (33%)	49 (30%)	0.748
-lower third	76 (60%)	97 (60%)
Tumour size (cm) (n = 281)	3 (0.5-12)	4.7 (0.7-20)	0.0001
Lymph nodes (n = 285)
-dissected	23.5 (0-71)	27 (2-86)	0.015
-positive	1 (0-24)	2 (0-41)	0.015
pT-category (n = 287)
-pT1	25 (20%)	19 (12%)
-pT2	34 (27%)	31 (19%)	0.055
-pT3	61 (49%)	98 (60%)
-pT4	5 (4%)	14 (9%)
pN-category (n = 286)
-pN0	54 (43%)	52 (32%)
-pN1	69 (56%)	107 (66%)	0.062
-pN2	1 (1%)	3 (2%)
pM-category (n = 283)
-pM0	96 (78%)	116 (73%)	0.177
-pM1	27 (22%)	44 (28%)