Incidence of anastomotic stricture after Ivor-Lewis oesophagectomy using a circular stapling device

Table 1 Comparison of stricture rates across factors

	Total, n	Strictures
		n	Rate	P value
Age at surgery (yr)				0.492
< 60	43	6	14%
60-69	62	6	10%
70+	49	3	6%
Gender				0.370
Male	119	13	11%
Female	35	2	6%
Tumour location				0.499
GOJ	43	4	9%
Lower	77	6	8%
Middle/upper	34	5	15%
Histology				0.126
Adenocarcinoma	127	11	9%
SCC	21	4	19%
Neoadjuvant Chemotherapy				0.821
No	47	4	9%
Yes	107	11	10%
Stapler size				0.643
25 mm	73	8	11%
28/32 mm	81	7	9%
T-stage				0.873
Tis/T0/T1	32	3	9%
T2	23	3	14%
T3/T4	99	9	9%
R-status				0.620
R0	93	10	11%
R1/2	61	5	8%

P values are from log-rank tests. Stricture rates are Kaplan-Meier estimated rates at one year. Analysis of histology excluded tumours that were "in situ" (n = 4), HGD (n = 1), neuroendocrine (n = 1), due to small numbers. GOJ: Gastro-oesophageal; SCC: Squamous cell carcinoma.