Learning curve for double-balloon enteroscopy: Findings from an analysis of 282 procedures

Table 2 Analysis of 184 cases of antegrade double-balloon enteroscopy with regards to technical success rate (divided into 6 blocks of 30, 30, 30, 30, 30, 34 cases)

Block No.	Details on outcome			Cases classified as clinical success (a+b)	Success rate (%)	P1
	Target lesions found (a)	Target lesions excluded (b)	Failed (c)
1 (n = 30)	18	9	3	27/30	90.0	0.73
2 (n = 30)	20	6	4	26/30	86.7
3 (n = 30)	18	10	2	28/30	93.3
4 (n = 30)	17	10	3	27/30	90.0
5 (n = 30)	17	12	1	29/30	96.7
6 (n = 34)	16	12	6	28/34	82.4

¹Logistic regression analysis testing for trend over time. Overall success rate: 165/184 = 89.7%.