. Author manuscript; available in PMC: 2013 Jul 30.

Published in final edited form as: Dig Dis Sci. 2008 Dec 18;54(11):2497–2502. doi: 10.1007/s10620-008-0653-8

Table 2.

Bivariate Comparisons of Time to Colonoscopy since Positive FOBT

	Time to colonoscopy Mean days (SD)	Mean difference (95% CI)	p value^**

Gender
Male	236 (111)	8 (−162, 177)	0.91
Female	228 (162)	^*	^*

Race
Caucasian	220 (111)	−38 (−67, −8)	0.01
Non-Caucasian	258 (111)	^*	^*

Colonoscopy Findings
No Adenomas	220 (105)	^*	^*
Adenomas	248 (113)	28 (−3, 59)	0.08
Advanced Adenomas	256 (123)	36 (−17, 90)	0.17
Invasive Cancer	265 (153)	46 (−73, 164)	0.40

Denotes the reference category.

^**

P values correspond to two-sample t-tests of the null hypothesis that there is no difference in mean time to colonoscopy since positive FOBT with respect to the reference category.