Multicenter Randomized Trial of 10-French versus 11.5-French Plastic Stents for Malignant Biliary Obstruction

Table 1

Demographic data: frequencies by stent size.

Variable	10 Fr (𝑛=115)	11.5 Fr (𝑛=119)	𝑃 value
Age			0.736
65	36.5% (42)	38.7% (46)
>65	63.5% (73)	61.3% (73)
Center			0.740
IU	60.9% (70)	62.2% (74)
MMC	31.3% (36)	27.7% (33)
RGC	7.8% (9)	10.1% (12)
Gender			0.924
Female	43.5% (50)	42.9% (51)
Male	56.5% (65)	57.1% (68)
Stricture location			0.974
CBD	80% (92)	79.8% (95)
Hilar	20% (23)	20.2% (24)

IU: Indiana University; MMC: Main Medical Center; RGC: Rockford GE Associates.
CBD: common bile duct.