Table 2. The incidence of stricture formation and the number of EBD dilatation.

	Triamcinolone injection (no)	Triamcinolone injection (yes)	P-value
Stricture
Before matching	25/92 (27.2)	12/58 (20.7)	0.37
After matching	17/37 (45.9)	7/37 (18.9)	0.016
EBD numbers (mean±s.d., range)
Before matching	1.7±3.7, 0–20	0.5±1.2, 0–8	0.02
After matching	2.8±4.6, 0–20	0.6±1.5, 0–8	0.006

EBD, endoscopic balloon dilatation.